/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:34:54,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:34:54,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:34:54,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:34:54,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:34:54,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:34:54,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:34:54,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:34:54,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:34:54,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:34:54,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:34:54,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:34:54,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:34:54,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:34:54,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:34:54,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:34:54,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:34:54,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:34:54,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:34:54,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:34:54,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:34:54,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:34:54,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:34:54,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:34:54,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:34:54,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:34:54,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:34:54,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:34:54,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:34:54,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:34:54,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:34:54,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:34:54,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:34:54,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:34:54,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:34:54,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:34:54,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:34:54,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:34:54,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:34:54,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:34:54,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:34:54,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:34:54,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:34:54,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:34:54,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:34:54,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:34:54,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:34:54,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:34:54,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:34:54,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:34:54,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:34:54,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:34:54,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:34:54,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:34:54,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:34:54,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:34:54,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:54,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:34:54,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:34:54,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:34:54,973 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:34:54,974 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:34:54,974 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:34:54,974 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:34:54,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:34:54,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:34:54,974 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:34:55,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:34:55,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:34:55,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:34:55,202 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:34:55,202 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:34:55,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c [2022-01-10 06:34:55,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe4741a9/6aaaee956faa42ffb2f496a81a0fe4a5/FLAG6721682bd [2022-01-10 06:34:55,669 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:34:55,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c [2022-01-10 06:34:55,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe4741a9/6aaaee956faa42ffb2f496a81a0fe4a5/FLAG6721682bd [2022-01-10 06:34:55,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe4741a9/6aaaee956faa42ffb2f496a81a0fe4a5 [2022-01-10 06:34:55,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:34:55,692 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:34:55,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:55,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:34:55,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:34:55,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:55" (1/1) ... [2022-01-10 06:34:55,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1229c2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:55, skipping insertion in model container [2022-01-10 06:34:55,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:55" (1/1) ... [2022-01-10 06:34:55,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:34:55,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:55,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c[6887,6900] [2022-01-10 06:34:55,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:55,975 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:34:55,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:56,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c[6887,6900] [2022-01-10 06:34:56,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:56,050 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:34:56,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c[6887,6900] [2022-01-10 06:34:56,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:56,116 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:34:56,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56 WrapperNode [2022-01-10 06:34:56,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:56,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:56,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:34:56,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:34:56,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,156 INFO L137 Inliner]: procedures = 59, calls = 160, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 273 [2022-01-10 06:34:56,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:56,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:34:56,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:34:56,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:34:56,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:34:56,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:34:56,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:34:56,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:34:56,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (1/1) ... [2022-01-10 06:34:56,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:56,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:34:56,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:34:56,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:34:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:34:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-01-10 06:34:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-01-10 06:34:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-01-10 06:34:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-01-10 06:34:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-01-10 06:34:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-01-10 06:34:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-01-10 06:34:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-01-10 06:34:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-01-10 06:34:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-01-10 06:34:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-01-10 06:34:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-01-10 06:34:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:34:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-01-10 06:34:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-01-10 06:34:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-01-10 06:34:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-01-10 06:34:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:34:56,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:34:56,308 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:34:56,309 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:34:56,573 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:34:56,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:34:56,578 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:34:56,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:56 BoogieIcfgContainer [2022-01-10 06:34:56,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:34:56,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:34:56,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:34:56,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:34:56,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:34:55" (1/3) ... [2022-01-10 06:34:56,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5a2c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:56, skipping insertion in model container [2022-01-10 06:34:56,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:56" (2/3) ... [2022-01-10 06:34:56,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5a2c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:56, skipping insertion in model container [2022-01-10 06:34:56,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:56" (3/3) ... [2022-01-10 06:34:56,585 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2022-01-10 06:34:56,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:34:56,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:34:56,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:34:56,624 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 06:34:56,624 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:34:56,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 85 states have internal predecessors, (103), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-01-10 06:34:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 06:34:56,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:56,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:56,641 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:56,644 INFO L85 PathProgramCache]: Analyzing trace with hash -405346600, now seen corresponding path program 1 times [2022-01-10 06:34:56,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:56,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752837350] [2022-01-10 06:34:56,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:56,654 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:56,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:56,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:56,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:34:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:56,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:34:56,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:56,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:56,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:56,828 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:56,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752837350] [2022-01-10 06:34:56,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752837350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:56,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:56,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:56,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104223288] [2022-01-10 06:34:56,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:56,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:34:56,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:56,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:34:56,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:56,853 INFO L87 Difference]: Start difference. First operand has 99 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 85 states have internal predecessors, (103), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:56,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:56,874 INFO L93 Difference]: Finished difference Result 190 states and 261 transitions. [2022-01-10 06:34:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:34:56,876 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-10 06:34:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:56,881 INFO L225 Difference]: With dead ends: 190 [2022-01-10 06:34:56,881 INFO L226 Difference]: Without dead ends: 90 [2022-01-10 06:34:56,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:56,886 INFO L933 BasicCegarLoop]: 127 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, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:56,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-01-10 06:34:56,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-01-10 06:34:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.328358208955224) internal successors, (89), 77 states have internal predecessors, (89), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-01-10 06:34:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2022-01-10 06:34:56,918 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 19 [2022-01-10 06:34:56,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:56,919 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2022-01-10 06:34:56,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:56,919 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2022-01-10 06:34:56,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 06:34:56,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:56,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:56,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 06:34:57,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:57,125 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:57,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1370466006, now seen corresponding path program 1 times [2022-01-10 06:34:57,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:57,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933917802] [2022-01-10 06:34:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:57,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:57,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:57,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:57,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:34:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:57,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:57,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:57,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:57,271 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:57,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933917802] [2022-01-10 06:34:57,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933917802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:57,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:57,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:34:57,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22403177] [2022-01-10 06:34:57,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:57,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:57,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:57,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:57,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:57,275 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:57,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:57,288 INFO L93 Difference]: Finished difference Result 142 states and 186 transitions. [2022-01-10 06:34:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:57,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-10 06:34:57,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:57,301 INFO L225 Difference]: With dead ends: 142 [2022-01-10 06:34:57,301 INFO L226 Difference]: Without dead ends: 81 [2022-01-10 06:34:57,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:57,303 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 16 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:57,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 189 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:57,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-01-10 06:34:57,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-01-10 06:34:57,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 71 states have internal predecessors, (82), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-01-10 06:34:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2022-01-10 06:34:57,312 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 106 transitions. Word has length 20 [2022-01-10 06:34:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:57,312 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 106 transitions. [2022-01-10 06:34:57,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2022-01-10 06:34:57,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 06:34:57,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:57,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:57,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:57,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:57,514 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:57,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:57,515 INFO L85 PathProgramCache]: Analyzing trace with hash 412043634, now seen corresponding path program 1 times [2022-01-10 06:34:57,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:57,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531921518] [2022-01-10 06:34:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:57,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:57,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:57,516 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:57,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:34:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:57,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:57,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:57,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:57,611 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:57,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531921518] [2022-01-10 06:34:57,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531921518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:57,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:57,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:57,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870515124] [2022-01-10 06:34:57,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:57,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:57,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:57,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:57,618 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:57,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:57,646 INFO L93 Difference]: Finished difference Result 228 states and 304 transitions. [2022-01-10 06:34:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:57,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-01-10 06:34:57,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:57,649 INFO L225 Difference]: With dead ends: 228 [2022-01-10 06:34:57,649 INFO L226 Difference]: Without dead ends: 154 [2022-01-10 06:34:57,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:57,650 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 86 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:57,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 224 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:57,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-01-10 06:34:57,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 151. [2022-01-10 06:34:57,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 131 states have internal predecessors, (153), 24 states have call successors, (24), 14 states have call predecessors, (24), 14 states have return successors, (24), 13 states have call predecessors, (24), 24 states have call successors, (24) [2022-01-10 06:34:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 201 transitions. [2022-01-10 06:34:57,670 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 201 transitions. Word has length 24 [2022-01-10 06:34:57,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:57,670 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 201 transitions. [2022-01-10 06:34:57,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 201 transitions. [2022-01-10 06:34:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 06:34:57,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:57,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:57,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:57,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:57,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:57,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2062247464, now seen corresponding path program 1 times [2022-01-10 06:34:57,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:57,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664606110] [2022-01-10 06:34:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:57,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:57,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:57,882 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:57,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:34:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:57,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:34:57,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:58,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:58,009 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:58,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664606110] [2022-01-10 06:34:58,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664606110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:58,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:58,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:34:58,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631000833] [2022-01-10 06:34:58,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:58,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:58,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:58,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:58,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:58,011 INFO L87 Difference]: Start difference. First operand 151 states and 201 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:58,095 INFO L93 Difference]: Finished difference Result 427 states and 592 transitions. [2022-01-10 06:34:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:34:58,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-01-10 06:34:58,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:58,105 INFO L225 Difference]: With dead ends: 427 [2022-01-10 06:34:58,105 INFO L226 Difference]: Without dead ends: 283 [2022-01-10 06:34:58,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:34:58,113 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 77 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:58,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 426 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:58,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-01-10 06:34:58,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-01-10 06:34:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 208 states have (on average 1.3461538461538463) internal successors, (280), 243 states have internal predecessors, (280), 48 states have call successors, (48), 28 states have call predecessors, (48), 26 states have return successors, (50), 24 states have call predecessors, (50), 48 states have call successors, (50) [2022-01-10 06:34:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 378 transitions. [2022-01-10 06:34:58,157 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 378 transitions. Word has length 28 [2022-01-10 06:34:58,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:58,157 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 378 transitions. [2022-01-10 06:34:58,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:58,158 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 378 transitions. [2022-01-10 06:34:58,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 06:34:58,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:58,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:58,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:58,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:58,369 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:58,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:58,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1056507795, now seen corresponding path program 1 times [2022-01-10 06:34:58,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:58,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302384572] [2022-01-10 06:34:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:58,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:58,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:58,375 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:58,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:34:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:58,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:34:58,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:58,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:58,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:58,473 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:58,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302384572] [2022-01-10 06:34:58,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302384572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:58,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:58,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:34:58,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964521383] [2022-01-10 06:34:58,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:58,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:58,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:58,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:58,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:58,475 INFO L87 Difference]: Start difference. First operand 283 states and 378 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:58,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:58,525 INFO L93 Difference]: Finished difference Result 675 states and 925 transitions. [2022-01-10 06:34:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:58,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-01-10 06:34:58,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:58,530 INFO L225 Difference]: With dead ends: 675 [2022-01-10 06:34:58,530 INFO L226 Difference]: Without dead ends: 399 [2022-01-10 06:34:58,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:58,532 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 73 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:58,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 179 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-01-10 06:34:58,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 390. [2022-01-10 06:34:58,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 295 states have (on average 1.2915254237288136) internal successors, (381), 317 states have internal predecessors, (381), 49 states have call successors, (49), 45 states have call predecessors, (49), 45 states have return successors, (73), 44 states have call predecessors, (73), 49 states have call successors, (73) [2022-01-10 06:34:58,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 503 transitions. [2022-01-10 06:34:58,578 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 503 transitions. Word has length 30 [2022-01-10 06:34:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:58,579 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 503 transitions. [2022-01-10 06:34:58,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 503 transitions. [2022-01-10 06:34:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 06:34:58,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:58,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:58,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-01-10 06:34:58,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:58,789 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:58,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:58,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1410993586, now seen corresponding path program 1 times [2022-01-10 06:34:58,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:58,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959386152] [2022-01-10 06:34:58,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:58,791 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:58,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:58,792 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:58,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:34:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:58,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:34:58,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:58,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:58,957 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:58,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959386152] [2022-01-10 06:34:58,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959386152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:58,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:58,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:34:58,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961033433] [2022-01-10 06:34:58,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:58,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:34:58,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:58,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:34:58,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:34:58,958 INFO L87 Difference]: Start difference. First operand 390 states and 503 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:59,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:59,415 INFO L93 Difference]: Finished difference Result 1115 states and 1508 transitions. [2022-01-10 06:34:59,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 06:34:59,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-01-10 06:34:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:59,418 INFO L225 Difference]: With dead ends: 1115 [2022-01-10 06:34:59,419 INFO L226 Difference]: Without dead ends: 890 [2022-01-10 06:34:59,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-10 06:34:59,420 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 256 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:59,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 720 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 06:34:59,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-01-10 06:34:59,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 861. [2022-01-10 06:34:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 656 states have (on average 1.2820121951219512) internal successors, (841), 711 states have internal predecessors, (841), 102 states have call successors, (102), 86 states have call predecessors, (102), 102 states have return successors, (164), 96 states have call predecessors, (164), 102 states have call successors, (164) [2022-01-10 06:34:59,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1107 transitions. [2022-01-10 06:34:59,458 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1107 transitions. Word has length 32 [2022-01-10 06:34:59,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:59,458 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1107 transitions. [2022-01-10 06:34:59,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:59,458 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1107 transitions. [2022-01-10 06:34:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 06:34:59,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:59,460 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:34:59,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:59,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:59,668 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:59,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:59,668 INFO L85 PathProgramCache]: Analyzing trace with hash -224733790, now seen corresponding path program 1 times [2022-01-10 06:34:59,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:59,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296100742] [2022-01-10 06:34:59,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:59,669 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:59,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:59,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:59,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:34:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:59,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:59,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:59,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:59,839 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:59,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296100742] [2022-01-10 06:34:59,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296100742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:59,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:59,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:34:59,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995580453] [2022-01-10 06:34:59,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:59,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:59,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:59,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:59,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:59,842 INFO L87 Difference]: Start difference. First operand 861 states and 1107 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:34:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:59,886 INFO L93 Difference]: Finished difference Result 1414 states and 1836 transitions. [2022-01-10 06:34:59,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:59,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 66 [2022-01-10 06:34:59,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:59,891 INFO L225 Difference]: With dead ends: 1414 [2022-01-10 06:34:59,891 INFO L226 Difference]: Without dead ends: 975 [2022-01-10 06:34:59,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:59,894 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 64 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:59,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 153 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:59,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-01-10 06:34:59,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 965. [2022-01-10 06:34:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 738 states have (on average 1.2804878048780488) internal successors, (945), 800 states have internal predecessors, (945), 113 states have call successors, (113), 97 states have call predecessors, (113), 113 states have return successors, (183), 106 states have call predecessors, (183), 113 states have call successors, (183) [2022-01-10 06:34:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1241 transitions. [2022-01-10 06:34:59,944 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1241 transitions. Word has length 66 [2022-01-10 06:34:59,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:59,945 INFO L470 AbstractCegarLoop]: Abstraction has 965 states and 1241 transitions. [2022-01-10 06:34:59,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:34:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1241 transitions. [2022-01-10 06:34:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 06:34:59,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:59,948 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:59,959 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 06:35:00,160 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 06:35:00,160 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:00,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1813423557, now seen corresponding path program 1 times [2022-01-10 06:35:00,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:00,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703796968] [2022-01-10 06:35:00,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:00,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:00,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:00,166 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 06:35:00,168 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 06:35:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:00,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:35:00,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 06:35:00,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:00,358 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:00,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703796968] [2022-01-10 06:35:00,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703796968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:00,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:00,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:35:00,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573529561] [2022-01-10 06:35:00,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:00,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:35:00,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:35:00,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:35:00,360 INFO L87 Difference]: Start difference. First operand 965 states and 1241 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:35:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:00,412 INFO L93 Difference]: Finished difference Result 1971 states and 2601 transitions. [2022-01-10 06:35:00,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:35:00,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 71 [2022-01-10 06:35:00,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:00,418 INFO L225 Difference]: With dead ends: 1971 [2022-01-10 06:35:00,418 INFO L226 Difference]: Without dead ends: 1013 [2022-01-10 06:35:00,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 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 06:35:00,421 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 10 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 420 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 06:35:00,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 420 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2022-01-10 06:35:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 989. [2022-01-10 06:35:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 762 states have (on average 1.2716535433070866) internal successors, (969), 824 states have internal predecessors, (969), 113 states have call successors, (113), 97 states have call predecessors, (113), 113 states have return successors, (183), 106 states have call predecessors, (183), 113 states have call successors, (183) [2022-01-10 06:35:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1265 transitions. [2022-01-10 06:35:00,461 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1265 transitions. Word has length 71 [2022-01-10 06:35:00,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:00,461 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1265 transitions. [2022-01-10 06:35:00,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:35:00,461 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1265 transitions. [2022-01-10 06:35:00,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 06:35:00,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:00,464 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:00,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-01-10 06:35:00,671 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 06:35:00,671 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:00,672 INFO L85 PathProgramCache]: Analyzing trace with hash 432155897, now seen corresponding path program 1 times [2022-01-10 06:35:00,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:00,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496013635] [2022-01-10 06:35:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:00,672 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:00,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:00,673 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 06:35:00,675 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 06:35:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:00,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:35:00,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 06:35:00,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:00,804 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:00,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496013635] [2022-01-10 06:35:00,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496013635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:00,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:00,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:35:00,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821709009] [2022-01-10 06:35:00,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:00,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:35:00,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:00,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:35:00,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:35:00,806 INFO L87 Difference]: Start difference. First operand 989 states and 1265 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:35:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:00,846 INFO L93 Difference]: Finished difference Result 1896 states and 2505 transitions. [2022-01-10 06:35:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:35:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 71 [2022-01-10 06:35:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:00,850 INFO L225 Difference]: With dead ends: 1896 [2022-01-10 06:35:00,850 INFO L226 Difference]: Without dead ends: 914 [2022-01-10 06:35:00,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 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 06:35:00,854 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 11 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 312 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 06:35:00,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 312 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:00,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-01-10 06:35:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 902. [2022-01-10 06:35:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 691 states have (on average 1.2633863965267729) internal successors, (873), 748 states have internal predecessors, (873), 108 states have call successors, (108), 92 states have call predecessors, (108), 102 states have return successors, (154), 95 states have call predecessors, (154), 108 states have call successors, (154) [2022-01-10 06:35:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1135 transitions. [2022-01-10 06:35:00,895 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1135 transitions. Word has length 71 [2022-01-10 06:35:00,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:00,895 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1135 transitions. [2022-01-10 06:35:00,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:35:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1135 transitions. [2022-01-10 06:35:00,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 06:35:00,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:00,897 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:35:00,906 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 06:35:01,104 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 06:35:01,104 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2083446865, now seen corresponding path program 1 times [2022-01-10 06:35:01,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:01,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325010651] [2022-01-10 06:35:01,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:01,105 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:01,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:01,106 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 06:35:01,107 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 06:35:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:01,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:35:01,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-10 06:35:01,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:01,288 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:01,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325010651] [2022-01-10 06:35:01,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325010651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:01,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:01,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:35:01,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965182687] [2022-01-10 06:35:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:01,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:35:01,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:01,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:35:01,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:35:01,289 INFO L87 Difference]: Start difference. First operand 902 states and 1135 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 06:35:01,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:01,365 INFO L93 Difference]: Finished difference Result 2870 states and 3653 transitions. [2022-01-10 06:35:01,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 06:35:01,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 75 [2022-01-10 06:35:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:01,373 INFO L225 Difference]: With dead ends: 2870 [2022-01-10 06:35:01,373 INFO L226 Difference]: Without dead ends: 1975 [2022-01-10 06:35:01,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 06:35:01,376 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 104 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:01,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 613 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:01,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2022-01-10 06:35:01,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1861. [2022-01-10 06:35:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1861 states, 1438 states have (on average 1.2475660639777468) internal successors, (1794), 1545 states have internal predecessors, (1794), 210 states have call successors, (210), 184 states have call predecessors, (210), 212 states have return successors, (328), 198 states have call predecessors, (328), 210 states have call successors, (328) [2022-01-10 06:35:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1861 states to 1861 states and 2332 transitions. [2022-01-10 06:35:01,437 INFO L78 Accepts]: Start accepts. Automaton has 1861 states and 2332 transitions. Word has length 75 [2022-01-10 06:35:01,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:01,437 INFO L470 AbstractCegarLoop]: Abstraction has 1861 states and 2332 transitions. [2022-01-10 06:35:01,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 06:35:01,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1861 states and 2332 transitions. [2022-01-10 06:35:01,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 06:35:01,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:01,440 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:01,455 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 06:35:01,646 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 06:35:01,647 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:01,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2069425587, now seen corresponding path program 1 times [2022-01-10 06:35:01,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:01,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458706789] [2022-01-10 06:35:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:01,648 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:01,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:01,648 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 06:35:01,649 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 06:35:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:01,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:35:01,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 06:35:01,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:35:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 06:35:02,143 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:02,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458706789] [2022-01-10 06:35:02,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458706789] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:35:02,143 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:35:02,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2022-01-10 06:35:02,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217507069] [2022-01-10 06:35:02,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:35:02,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 06:35:02,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:02,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 06:35:02,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-01-10 06:35:02,145 INFO L87 Difference]: Start difference. First operand 1861 states and 2332 transitions. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 14 states have internal predecessors, (110), 7 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-01-10 06:35:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:03,369 INFO L93 Difference]: Finished difference Result 5155 states and 6992 transitions. [2022-01-10 06:35:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-10 06:35:03,369 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 14 states have internal predecessors, (110), 7 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 79 [2022-01-10 06:35:03,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:03,387 INFO L225 Difference]: With dead ends: 5155 [2022-01-10 06:35:03,387 INFO L226 Difference]: Without dead ends: 3523 [2022-01-10 06:35:03,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 145 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=335, Invalid=1225, Unknown=0, NotChecked=0, Total=1560 [2022-01-10 06:35:03,394 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 800 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:03,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 905 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 06:35:03,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2022-01-10 06:35:03,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3369. [2022-01-10 06:35:03,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3369 states, 2582 states have (on average 1.237412858249419) internal successors, (3195), 2777 states have internal predecessors, (3195), 390 states have call successors, (390), 338 states have call predecessors, (390), 396 states have return successors, (865), 376 states have call predecessors, (865), 390 states have call successors, (865) [2022-01-10 06:35:03,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3369 states to 3369 states and 4450 transitions. [2022-01-10 06:35:03,605 INFO L78 Accepts]: Start accepts. Automaton has 3369 states and 4450 transitions. Word has length 79 [2022-01-10 06:35:03,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:03,605 INFO L470 AbstractCegarLoop]: Abstraction has 3369 states and 4450 transitions. [2022-01-10 06:35:03,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 14 states have internal predecessors, (110), 7 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-01-10 06:35:03,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3369 states and 4450 transitions. [2022-01-10 06:35:03,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 06:35:03,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:03,610 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:03,625 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 06:35:03,817 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 06:35:03,817 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:03,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:03,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1025690998, now seen corresponding path program 1 times [2022-01-10 06:35:03,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:03,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066759066] [2022-01-10 06:35:03,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:03,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:03,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:03,820 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:35:03,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 06:35:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:03,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:35:03,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 06:35:04,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:35:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-10 06:35:04,677 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:04,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066759066] [2022-01-10 06:35:04,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066759066] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:35:04,678 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:35:04,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 20 [2022-01-10 06:35:04,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815738176] [2022-01-10 06:35:04,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:35:04,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-10 06:35:04,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:04,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-10 06:35:04,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-01-10 06:35:04,679 INFO L87 Difference]: Start difference. First operand 3369 states and 4450 transitions. Second operand has 20 states, 20 states have (on average 7.4) internal successors, (148), 19 states have internal predecessors, (148), 11 states have call successors, (18), 6 states have call predecessors, (18), 9 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) [2022-01-10 06:35:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:05,506 INFO L93 Difference]: Finished difference Result 7027 states and 9692 transitions. [2022-01-10 06:35:05,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 06:35:05,507 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.4) internal successors, (148), 19 states have internal predecessors, (148), 11 states have call successors, (18), 6 states have call predecessors, (18), 9 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) Word has length 121 [2022-01-10 06:35:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:05,523 INFO L225 Difference]: With dead ends: 7027 [2022-01-10 06:35:05,523 INFO L226 Difference]: Without dead ends: 3887 [2022-01-10 06:35:05,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2022-01-10 06:35:05,535 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 956 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:05,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 1168 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 06:35:05,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3887 states. [2022-01-10 06:35:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3887 to 3625. [2022-01-10 06:35:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3625 states, 2762 states have (on average 1.227009413468501) internal successors, (3389), 2957 states have internal predecessors, (3389), 428 states have call successors, (428), 382 states have call predecessors, (428), 434 states have return successors, (643), 416 states have call predecessors, (643), 428 states have call successors, (643) [2022-01-10 06:35:05,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 4460 transitions. [2022-01-10 06:35:05,676 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 4460 transitions. Word has length 121 [2022-01-10 06:35:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:05,676 INFO L470 AbstractCegarLoop]: Abstraction has 3625 states and 4460 transitions. [2022-01-10 06:35:05,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.4) internal successors, (148), 19 states have internal predecessors, (148), 11 states have call successors, (18), 6 states have call predecessors, (18), 9 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) [2022-01-10 06:35:05,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 4460 transitions. [2022-01-10 06:35:05,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 06:35:05,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:35:05,680 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:05,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 06:35:05,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:35:05,891 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:35:05,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:35:05,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1469591672, now seen corresponding path program 1 times [2022-01-10 06:35:05,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:35:05,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843124756] [2022-01-10 06:35:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:35:05,892 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:35:05,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:35:05,893 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:35:05,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 06:35:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:35:05,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:35:05,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:35:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 06:35:06,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:35:06,132 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:35:06,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843124756] [2022-01-10 06:35:06,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843124756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:35:06,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:35:06,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:35:06,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236937467] [2022-01-10 06:35:06,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:35:06,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:35:06,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:35:06,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:35:06,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:35:06,133 INFO L87 Difference]: Start difference. First operand 3625 states and 4460 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-10 06:35:06,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:35:06,181 INFO L93 Difference]: Finished difference Result 4381 states and 5368 transitions. [2022-01-10 06:35:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:35:06,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 121 [2022-01-10 06:35:06,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:35:06,183 INFO L225 Difference]: With dead ends: 4381 [2022-01-10 06:35:06,183 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 06:35:06,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 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 06:35:06,190 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 9 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:35:06,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 354 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:35:06,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 06:35:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 06:35:06,191 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 06:35:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 06:35:06,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2022-01-10 06:35:06,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:35:06,192 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 06:35:06,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-10 06:35:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 06:35:06,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 06:35:06,194 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:35:06,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 06:35:06,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:35:06,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 06:35:09,335 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 252 259) the Hoare annotation is: true [2022-01-10 06:35:09,335 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 252 259) no Hoare annotation was computed. [2022-01-10 06:35:09,335 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 252 259) no Hoare annotation was computed. [2022-01-10 06:35:09,335 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 159 165) no Hoare annotation was computed. [2022-01-10 06:35:09,335 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 159 165) the Hoare annotation is: true [2022-01-10 06:35:09,335 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 933 944) the Hoare annotation is: (let ((.cse3 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse0 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse2 (not (= |old(~methaneLevelCritical~0)| (_ bv0 32))))) (and (or (= ~systemActive~0 (_ bv0 32)) .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse2 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse3 .cse0 .cse1 .cse2))) [2022-01-10 06:35:09,335 INFO L858 garLoopResultBuilder]: For program point L937-1(lines 933 944) no Hoare annotation was computed. [2022-01-10 06:35:09,336 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 933 944) no Hoare annotation was computed. [2022-01-10 06:35:09,336 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 446 475) no Hoare annotation was computed. [2022-01-10 06:35:09,336 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 446 475) the Hoare annotation is: true [2022-01-10 06:35:09,336 INFO L861 garLoopResultBuilder]: At program point L471(lines 446 475) the Hoare annotation is: true [2022-01-10 06:35:09,336 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2022-01-10 06:35:09,336 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 464) no Hoare annotation was computed. [2022-01-10 06:35:09,336 INFO L861 garLoopResultBuilder]: At program point L460-1(lines 460 464) the Hoare annotation is: true [2022-01-10 06:35:09,336 INFO L858 garLoopResultBuilder]: For program point L457(line 457) no Hoare annotation was computed. [2022-01-10 06:35:09,336 INFO L861 garLoopResultBuilder]: At program point L456-2(lines 456 470) the Hoare annotation is: true [2022-01-10 06:35:09,336 INFO L861 garLoopResultBuilder]: At program point L452(line 452) the Hoare annotation is: true [2022-01-10 06:35:09,336 INFO L858 garLoopResultBuilder]: For program point L452-1(line 452) no Hoare annotation was computed. [2022-01-10 06:35:09,336 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2022-01-10 06:35:09,336 INFO L854 garLoopResultBuilder]: At program point L238(line 238) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse5)) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (and (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2 .cse3))) (and (or .cse0 (and .cse1 .cse2 .cse3) (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse4 .cse5 .cse6 (and (= (bvadd ~waterLevel~0 (_ bv1 32)) |old(~waterLevel~0)|) .cse2)) (or .cse4 .cse0 .cse6))))) [2022-01-10 06:35:09,336 INFO L854 garLoopResultBuilder]: At program point L238-1(lines 219 243) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse5)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (and .cse1 .cse3))) (and (or .cse0 (and .cse1 .cse2 .cse3) (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse4 .cse5 (and (= (bvadd ~waterLevel~0 (_ bv1 32)) |old(~waterLevel~0)|) .cse2) .cse6) (or .cse4 .cse0 .cse6))))) [2022-01-10 06:35:09,336 INFO L854 garLoopResultBuilder]: At program point L267(lines 260 270) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse1 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (= ~systemActive~0 (_ bv0 32)))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv1 32)) |old(~waterLevel~0)|)) (or .cse1 .cse0) (or .cse1 .cse2 (and (= |timeShift_isMethaneAlarm_#res#1| (_ bv0 32)) (= |timeShift_isMethaneLevelCritical_#res#1| (_ bv0 32))) (not (= ~methaneLevelCritical~0 (_ bv0 32)))))) [2022-01-10 06:35:09,337 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 138 157) no Hoare annotation was computed. [2022-01-10 06:35:09,337 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 135 158) no Hoare annotation was computed. [2022-01-10 06:35:09,337 INFO L854 garLoopResultBuilder]: At program point L441(lines 436 443) the Hoare annotation is: (let ((.cse1 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 (= ~systemActive~0 (_ bv0 32))) (or .cse1 .cse0))) [2022-01-10 06:35:09,337 INFO L854 garLoopResultBuilder]: At program point L982(lines 977 985) the Hoare annotation is: (let ((.cse5 (= |timeShift_getWaterLevel_#res#1| (_ bv2 32))) (.cse1 (= ~systemActive~0 (_ bv0 32))) (.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (and .cse5 (not .cse1) .cse6)) (.cse7 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= |timeShift_getWaterLevel_#res#1| (_ bv1 32)))) (and (or .cse0 .cse1 .cse2 (and (= ~waterLevel~0 (_ bv1 32)) .cse3 .cse4)) (or .cse0 (and .cse5 .cse3 .cse6) .cse2 .cse7) (or .cse7 (and .cse3 .cse4 .cse6) (not (= (_ bv1 32) |old(~waterLevel~0)|)))))) [2022-01-10 06:35:09,337 INFO L854 garLoopResultBuilder]: At program point L276(lines 271 279) the Hoare annotation is: (let ((.cse1 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 (= ~systemActive~0 (_ bv0 32))) (or .cse1 .cse0))) [2022-01-10 06:35:09,337 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 235) no Hoare annotation was computed. [2022-01-10 06:35:09,337 INFO L858 garLoopResultBuilder]: For program point L384(lines 384 390) no Hoare annotation was computed. [2022-01-10 06:35:09,337 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 240) no Hoare annotation was computed. [2022-01-10 06:35:09,337 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 393) no Hoare annotation was computed. [2022-01-10 06:35:09,337 INFO L854 garLoopResultBuilder]: At program point L380-1(lines 372 396) the Hoare annotation is: (let ((.cse8 (= |timeShift_getWaterLevel_#res#1| (_ bv2 32))) (.cse9 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| (_ bv2 32))) (.cse6 (= ~systemActive~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| (_ bv1 32))) (.cse2 (= |timeShift_getWaterLevel_#res#1| (_ bv1 32))) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse7 (and .cse8 .cse9 (not .cse6) .cse3))) (and (or (and .cse0 .cse1 .cse2 .cse3) .cse4 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse5 .cse6 (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse1 .cse2) .cse7) (or .cse5 .cse4 (and .cse8 .cse9 .cse1 .cse3) .cse7)))) [2022-01-10 06:35:09,337 INFO L854 garLoopResultBuilder]: At program point L950(lines 945 953) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse1 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (= ~systemActive~0 (_ bv0 32)))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv1 32)) |old(~waterLevel~0)|)) (or .cse1 .cse0) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 (_ bv0 32))) (= |timeShift_isMethaneLevelCritical_#res#1| (_ bv0 32))))) [2022-01-10 06:35:09,337 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 917) no Hoare annotation was computed. [2022-01-10 06:35:09,338 INFO L854 garLoopResultBuilder]: At program point L913-2(lines 909 920) the Hoare annotation is: (let ((.cse1 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 (= ~systemActive~0 (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv1 32)) |old(~waterLevel~0)|)) (or .cse1 .cse0))) [2022-01-10 06:35:09,338 INFO L858 garLoopResultBuilder]: For program point L146-1(lines 146 152) no Hoare annotation was computed. [2022-01-10 06:35:09,338 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 135 158) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse1 (and (= (_ bv0 32) ~pumpRunning~0) .cse3)) (.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|)))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse1) (or .cse2 .cse0 .cse1) (or .cse2 (= ~systemActive~0 (_ bv0 32)) .cse3)))) [2022-01-10 06:35:09,338 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 135 158) no Hoare annotation was computed. [2022-01-10 06:35:09,338 INFO L854 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse1 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (= ~systemActive~0 (_ bv0 32)))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 .cse2 (and (= |timeShift_processEnvironment_~tmp~3#1| (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv1 32)) |old(~waterLevel~0)|))) (or .cse1 .cse0) (or .cse1 .cse2 (and (= |timeShift_isMethaneAlarm_#res#1| (_ bv0 32)) (= |timeShift_isMethaneLevelCritical_#res#1| (_ bv0 32))) (not (= ~methaneLevelCritical~0 (_ bv0 32)))))) [2022-01-10 06:35:09,338 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2022-01-10 06:35:09,338 INFO L854 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 (_ bv0 32))) (.cse1 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv1 32)) |old(~waterLevel~0)|)) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (or .cse1 .cse0))) [2022-01-10 06:35:09,338 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-01-10 06:35:09,338 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2022-01-10 06:35:09,338 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 534) no Hoare annotation was computed. [2022-01-10 06:35:09,338 INFO L854 garLoopResultBuilder]: At program point L366(lines 354 368) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse1))) [2022-01-10 06:35:09,339 INFO L854 garLoopResultBuilder]: At program point L110(lines 65 112) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:35:09,339 INFO L854 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:35:09,339 INFO L858 garLoopResultBuilder]: For program point L527-2(lines 527 534) no Hoare annotation was computed. [2022-01-10 06:35:09,339 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 364) no Hoare annotation was computed. [2022-01-10 06:35:09,339 INFO L858 garLoopResultBuilder]: For program point L358-1(lines 358 364) no Hoare annotation was computed. [2022-01-10 06:35:09,341 INFO L854 garLoopResultBuilder]: At program point L416(lines 412 418) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:09,341 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 06:35:09,341 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 06:35:09,342 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 06:35:09,342 INFO L861 garLoopResultBuilder]: At program point L536(lines 517 539) the Hoare annotation is: true [2022-01-10 06:35:09,342 INFO L858 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2022-01-10 06:35:09,342 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 06:35:09,342 INFO L858 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2022-01-10 06:35:09,342 INFO L854 garLoopResultBuilder]: At program point L504(lines 500 506) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:09,342 INFO L854 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:35:09,342 INFO L861 garLoopResultBuilder]: At program point L116(lines 55 120) the Hoare annotation is: true [2022-01-10 06:35:09,342 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-01-10 06:35:09,342 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2022-01-10 06:35:09,342 INFO L854 garLoopResultBuilder]: At program point L360(line 360) the Hoare annotation is: (and (= ~waterLevel~0 (_ bv2 32)) (not (= ~systemActive~0 (_ bv0 32))) (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) [2022-01-10 06:35:09,343 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 71) no Hoare annotation was computed. [2022-01-10 06:35:09,343 INFO L854 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2022-01-10 06:35:09,343 INFO L854 garLoopResultBuilder]: At program point L431(lines 426 434) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:09,343 INFO L854 garLoopResultBuilder]: At program point L423(lines 419 425) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:35:09,343 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 107) no Hoare annotation was computed. [2022-01-10 06:35:09,343 INFO L854 garLoopResultBuilder]: At program point L101-2(lines 95 108) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1) (and (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:35:09,343 INFO L861 garLoopResultBuilder]: At program point L514(lines 507 516) the Hoare annotation is: true [2022-01-10 06:35:09,343 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 167 191) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 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 06:35:09,344 INFO L854 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))))) [2022-01-10 06:35:09,344 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 167 191) no Hoare annotation was computed. [2022-01-10 06:35:09,344 INFO L854 garLoopResultBuilder]: At program point L331(lines 316 334) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1| (_ bv1 32)) (= (_ bv0 32) |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| (_ bv0 32)) .cse2) (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2))) [2022-01-10 06:35:09,344 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2022-01-10 06:35:09,344 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 329) no Hoare annotation was computed. [2022-01-10 06:35:09,344 INFO L858 garLoopResultBuilder]: For program point L990(lines 990 996) no Hoare annotation was computed. [2022-01-10 06:35:09,344 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 167 191) no Hoare annotation was computed. [2022-01-10 06:35:09,344 INFO L854 garLoopResultBuilder]: At program point L249(lines 244 251) the Hoare annotation is: (or (= ~systemActive~0 (_ bv0 32)) (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= ~waterLevel~0 (_ bv1 32)))) [2022-01-10 06:35:09,344 INFO L854 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse2 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1| (_ bv1 32)) .cse2 .cse3) (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) (and .cse2 .cse3) .cse1))) [2022-01-10 06:35:09,344 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 183) no Hoare annotation was computed. [2022-01-10 06:35:09,345 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 188) no Hoare annotation was computed. [2022-01-10 06:35:09,345 INFO L854 garLoopResultBuilder]: At program point L995(lines 986 999) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 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))) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) .cse2)))) [2022-01-10 06:35:09,345 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 921 932) no Hoare annotation was computed. [2022-01-10 06:35:09,345 INFO L858 garLoopResultBuilder]: For program point L925-1(lines 921 932) no Hoare annotation was computed. [2022-01-10 06:35:09,345 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 921 932) the Hoare annotation is: (let ((.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse1) (or .cse2 (= ~systemActive~0 (_ bv0 32)) .cse1) (or .cse2 .cse0 .cse1))) [2022-01-10 06:35:09,345 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 193 217) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 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 06:35:09,345 INFO L854 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 32)))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv1 32)))))) [2022-01-10 06:35:09,345 INFO L854 garLoopResultBuilder]: At program point L203(line 203) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1) (or .cse0 (and (= (_ bv1 32) |processEnvironment__wrappee__lowWaterSensor_~tmp~2#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~5#1| (_ bv0 32)) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~2#1| (_ bv1 32)) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1| (_ bv1 32))) .cse2) (or .cse0 .cse1 .cse2))) [2022-01-10 06:35:09,345 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 209) no Hoare annotation was computed. [2022-01-10 06:35:09,345 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 214) no Hoare annotation was computed. [2022-01-10 06:35:09,346 INFO L854 garLoopResultBuilder]: At program point L350(lines 335 353) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1) (or .cse0 .cse2 (and (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~5#1| (_ bv0 32)) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~2#1| (_ bv1 32)) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1| (_ bv1 32)))) (or .cse0 .cse1 .cse2))) [2022-01-10 06:35:09,346 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 193 217) no Hoare annotation was computed. [2022-01-10 06:35:09,346 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 348) no Hoare annotation was computed. [2022-01-10 06:35:09,346 INFO L858 garLoopResultBuilder]: For program point L344-2(lines 344 348) no Hoare annotation was computed. [2022-01-10 06:35:09,346 INFO L854 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv1 32))) .cse1) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) (not (= |old(~pumpRunning~0)| (_ bv0 32))) .cse1))) [2022-01-10 06:35:09,346 INFO L858 garLoopResultBuilder]: For program point L212-1(lines 193 217) no Hoare annotation was computed. [2022-01-10 06:35:09,346 INFO L854 garLoopResultBuilder]: At program point L1005(lines 1000 1008) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse2 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1) (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| (_ bv0 32))))) [2022-01-10 06:35:09,348 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:35:09,350 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:35:09,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:35:09 BoogieIcfgContainer [2022-01-10 06:35:09,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:35:09,378 INFO L158 Benchmark]: Toolchain (without parser) took 13686.55ms. Allocated memory was 198.2MB in the beginning and 374.3MB in the end (delta: 176.2MB). Free memory was 142.0MB in the beginning and 285.2MB in the end (delta: -143.2MB). Peak memory consumption was 205.0MB. Max. memory is 8.0GB. [2022-01-10 06:35:09,378 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 198.2MB. Free memory is still 159.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:35:09,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.70ms. Allocated memory was 198.2MB in the beginning and 311.4MB in the end (delta: 113.2MB). Free memory was 141.8MB in the beginning and 269.8MB in the end (delta: -128.0MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-01-10 06:35:09,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.17ms. Allocated memory is still 311.4MB. Free memory was 269.8MB in the beginning and 267.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:35:09,379 INFO L158 Benchmark]: Boogie Preprocessor took 23.58ms. Allocated memory is still 311.4MB. Free memory was 267.1MB in the beginning and 265.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:35:09,379 INFO L158 Benchmark]: RCFGBuilder took 399.20ms. Allocated memory is still 311.4MB. Free memory was 265.0MB in the beginning and 245.6MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-10 06:35:09,379 INFO L158 Benchmark]: TraceAbstraction took 12796.97ms. Allocated memory was 311.4MB in the beginning and 374.3MB in the end (delta: 62.9MB). Free memory was 245.1MB in the beginning and 285.2MB in the end (delta: -40.1MB). Peak memory consumption was 195.3MB. Max. memory is 8.0GB. [2022-01-10 06:35:09,380 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 198.2MB. Free memory is still 159.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 423.70ms. Allocated memory was 198.2MB in the beginning and 311.4MB in the end (delta: 113.2MB). Free memory was 141.8MB in the beginning and 269.8MB in the end (delta: -128.0MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.17ms. Allocated memory is still 311.4MB. Free memory was 269.8MB in the beginning and 267.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.58ms. Allocated memory is still 311.4MB. Free memory was 267.1MB in the beginning and 265.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 399.20ms. Allocated memory is still 311.4MB. Free memory was 265.0MB in the beginning and 245.6MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 12796.97ms. Allocated memory was 311.4MB in the beginning and 374.3MB in the end (delta: 62.9MB). Free memory was 245.1MB in the beginning and 285.2MB in the end (delta: -40.1MB). Peak memory consumption was 195.3MB. 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: 440]: 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 9 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.7s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2511 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2462 mSDsluCounter, 5790 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4041 mSDsCounter, 792 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2967 IncrementalHoareTripleChecker+Invalid, 3759 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 792 mSolverCounterUnsat, 1749 mSDtfsCounter, 2967 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1003 GetRequests, 892 SyntacticMatches, 5 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3625occurred in iteration=12, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 617 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 47 LocationsWithAnnotation, 6787 PreInvPairs, 7077 NumberOfFragments, 1347 HoareAnnotationTreeSize, 6787 FomulaSimplifications, 1268 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 47 FomulaSimplificationsInter, 10008 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 757 NumberOfCodeBlocks, 757 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 942 ConstructedInterpolants, 0 QuantifiedInterpolants, 2419 SizeOfPredicates, 30 NumberOfNonLiveVariables, 2540 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 246/286 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: 1000]: Loop Invariant Derived loop invariant: (((systemActive == 0bv32 || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) && ((systemActive == 0bv32 || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32))) && ((systemActive == 0bv32 || !(waterLevel == 1bv32)) || \result == 0bv32) - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (((waterLevel == 2bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) || ((waterLevel == 2bv32 && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((waterLevel == 1bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 446]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 986]: Loop Invariant Derived loop invariant: (((systemActive == 0bv32 || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || 0bv32 == pumpRunning) && (((systemActive == 0bv32 || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) || (\result == 1bv32 && 0bv32 == pumpRunning)) - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: ((((((tmp == 1bv32 && 0bv32 == pumpRunning) && \result == 1bv32) && waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || systemActive == 0bv32) || (((waterLevel == 1bv32 && tmp == 1bv32) && 0bv32 == pumpRunning) && \result == 1bv32)) || (((\result == 2bv32 && tmp == 2bv32) && !(systemActive == 0bv32)) && waterLevel == \old(waterLevel)))) && (((!(2bv32 == \old(waterLevel)) || !(\old(pumpRunning) == 0bv32)) || (((\result == 2bv32 && tmp == 2bv32) && 0bv32 == pumpRunning) && waterLevel == \old(waterLevel))) || (((\result == 2bv32 && tmp == 2bv32) && !(systemActive == 0bv32)) && waterLevel == \old(waterLevel))) - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: ((waterLevel == 2bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) || ((waterLevel == 1bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 500]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: ((((!(2bv32 == \old(waterLevel)) || systemActive == 0bv32) || ((\result == 2bv32 && !(systemActive == 0bv32)) && waterLevel == \old(waterLevel))) || ((waterLevel == 1bv32 && 0bv32 == pumpRunning) && \result == 1bv32)) && (((!(2bv32 == \old(waterLevel)) || ((\result == 2bv32 && 0bv32 == pumpRunning) && waterLevel == \old(waterLevel))) || ((\result == 2bv32 && !(systemActive == 0bv32)) && waterLevel == \old(waterLevel))) || !(\old(pumpRunning) == 0bv32))) && ((!(\old(pumpRunning) == 0bv32) || ((0bv32 == pumpRunning && \result == 1bv32) && waterLevel == \old(waterLevel))) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: (((systemActive == 0bv32 || !(\old(pumpRunning) == 0bv32)) || ((((\result == 1bv32 && tmp == 1bv32) && 0bv32 == tmp___0) && \result == 0bv32) && 0bv32 == pumpRunning)) || !(waterLevel == 1bv32)) && (((systemActive == 0bv32 || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || 0bv32 == pumpRunning) - InvariantResult [Line: 507]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 436]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0bv32) || !(1bv32 == \old(waterLevel))) && (!(2bv32 == \old(waterLevel)) || systemActive == 0bv32)) && (!(2bv32 == \old(waterLevel)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 945]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0bv32) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || systemActive == 0bv32) || ~bvadd16(waterLevel, 1bv32) == \old(waterLevel))) && (!(2bv32 == \old(waterLevel)) || !(\old(pumpRunning) == 0bv32))) && (((!(2bv32 == \old(waterLevel)) || systemActive == 0bv32) || !(methaneLevelCritical == 0bv32)) || \result == 0bv32) - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: (((systemActive == 0bv32 || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) && ((systemActive == 0bv32 || !(waterLevel == 1bv32)) || (((tmp == 0bv32 && tmp___0 == 1bv32) && \result == 0bv32) && \result == 1bv32))) && ((systemActive == 0bv32 || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) - InvariantResult [Line: 412]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0bv32) || !(1bv32 == \old(waterLevel))) && (!(2bv32 == \old(waterLevel)) || systemActive == 0bv32)) && (!(2bv32 == \old(waterLevel)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0bv32) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || systemActive == 0bv32) || ~bvadd16(waterLevel, 1bv32) == \old(waterLevel))) && (!(2bv32 == \old(waterLevel)) || !(\old(pumpRunning) == 0bv32))) && (((!(2bv32 == \old(waterLevel)) || systemActive == 0bv32) || (\result == 0bv32 && \result == 0bv32)) || !(methaneLevelCritical == 0bv32)) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0bv32) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || systemActive == 0bv32) || ~bvadd16(waterLevel, 1bv32) == \old(waterLevel))) && (!(2bv32 == \old(waterLevel)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: (systemActive == 0bv32 || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0bv32) || ((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && waterLevel == \old(waterLevel))) || !(1bv32 == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || systemActive == 0bv32) || (~bvadd16(waterLevel, 1bv32) == \old(waterLevel) && 0bv32 == pumpRunning)) || (!(systemActive == 0bv32) && waterLevel == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(\old(pumpRunning) == 0bv32)) || (!(systemActive == 0bv32) && waterLevel == \old(waterLevel))) - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 06:35:09,428 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...