/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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:34:17,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:34:17,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:34:17,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:34:17,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:34:17,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:34:17,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:34:17,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:34:17,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:34:17,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:34:17,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:34:17,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:34:17,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:34:17,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:34:17,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:34:17,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:34:17,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:34:17,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:34:17,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:34:17,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:34:17,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:34:17,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:34:17,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:34:17,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:34:17,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:34:17,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:34:17,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:34:17,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:34:17,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:34:17,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:34:17,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:34:17,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:34:17,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:34:17,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:34:17,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:34:17,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:34:17,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:34:17,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:34:17,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:34:17,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:34:17,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:34:17,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:34:17,795 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:34:17,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:34:17,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:34:17,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:34:17,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:34:17,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:34:17,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:34:17,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:34:17,796 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:34:17,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:34:17,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:34:17,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:34:17,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:17,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:34:17,798 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:34:17,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:34:18,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:34:18,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:34:18,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:34:18,020 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:34:18,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product05.cil.c [2022-01-10 06:34:18,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e647a131/616024fda29547ffb0f383f472492b9d/FLAG0d0fb9dde [2022-01-10 06:34:18,432 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:34:18,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product05.cil.c [2022-01-10 06:34:18,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e647a131/616024fda29547ffb0f383f472492b9d/FLAG0d0fb9dde [2022-01-10 06:34:18,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e647a131/616024fda29547ffb0f383f472492b9d [2022-01-10 06:34:18,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:34:18,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:34:18,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:18,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:34:18,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:34:18,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45742eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18, skipping insertion in model container [2022-01-10 06:34:18,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:34:18,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:19,116 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_product05.cil.c[16642,16655] [2022-01-10 06:34:19,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:19,132 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:34:19,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:19,199 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_product05.cil.c[16642,16655] [2022-01-10 06:34:19,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:19,210 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:34:19,254 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_product05.cil.c[16642,16655] [2022-01-10 06:34:19,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:19,268 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:34:19,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19 WrapperNode [2022-01-10 06:34:19,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:19,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:19,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:34:19,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:34:19,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,322 INFO L137 Inliner]: procedures = 52, calls = 148, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 204 [2022-01-10 06:34:19,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:19,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:34:19,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:34:19,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:34:19,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:34:19,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:34:19,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:34:19,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:34:19,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (1/1) ... [2022-01-10 06:34:19,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:19,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:34:19,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:34:19,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:34:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:34:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-01-10 06:34:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-01-10 06:34:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-01-10 06:34:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-01-10 06:34:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-01-10 06:34:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-01-10 06:34:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-01-10 06:34:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-01-10 06:34:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:34:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-01-10 06:34:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-01-10 06:34:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:34:19,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:34:19,473 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:34:19,474 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:34:19,710 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:34:19,714 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:34:19,714 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:34:19,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:19 BoogieIcfgContainer [2022-01-10 06:34:19,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:34:19,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:34:19,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:34:19,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:34:19,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:34:18" (1/3) ... [2022-01-10 06:34:19,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48251354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:19, skipping insertion in model container [2022-01-10 06:34:19,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:19" (2/3) ... [2022-01-10 06:34:19,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48251354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:19, skipping insertion in model container [2022-01-10 06:34:19,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:19" (3/3) ... [2022-01-10 06:34:19,721 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product05.cil.c [2022-01-10 06:34:19,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:34:19,725 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:34:19,773 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:34:19,777 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 06:34:19,778 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:34:19,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 58 states have internal predecessors, (73), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-10 06:34:19,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 06:34:19,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:19,794 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 06:34:19,794 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:19,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:19,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1276624222, now seen corresponding path program 1 times [2022-01-10 06:34:19,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:19,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642896793] [2022-01-10 06:34:19,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:19,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:19,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:19,816 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 06:34:19,845 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 06:34:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:19,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:34:19,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:20,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:20,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:20,030 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:20,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642896793] [2022-01-10 06:34:20,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642896793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:20,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:20,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:20,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927510727] [2022-01-10 06:34:20,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:20,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:34:20,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:34:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:20,067 INFO L87 Difference]: Start difference. First operand has 67 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 58 states have internal predecessors, (73), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:20,099 INFO L93 Difference]: Finished difference Result 126 states and 173 transitions. [2022-01-10 06:34:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:34:20,100 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-10 06:34:20,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:20,117 INFO L225 Difference]: With dead ends: 126 [2022-01-10 06:34:20,117 INFO L226 Difference]: Without dead ends: 58 [2022-01-10 06:34:20,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:20,128 INFO L933 BasicCegarLoop]: 83 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, 83 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:20,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:20,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-01-10 06:34:20,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-01-10 06:34:20,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-10 06:34:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2022-01-10 06:34:20,157 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 19 [2022-01-10 06:34:20,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:20,157 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2022-01-10 06:34:20,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,157 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-01-10 06:34:20,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 06:34:20,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:20,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:20,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,360 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:20,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:20,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1702047707, now seen corresponding path program 1 times [2022-01-10 06:34:20,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:20,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550725095] [2022-01-10 06:34:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:20,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:20,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:20,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:34:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:20,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:20,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:20,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:20,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:20,485 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:20,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550725095] [2022-01-10 06:34:20,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550725095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:20,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:20,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:34:20,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550054174] [2022-01-10 06:34:20,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:20,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:20,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:20,493 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:20,514 INFO L93 Difference]: Finished difference Result 82 states and 104 transitions. [2022-01-10 06:34:20,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:20,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-10 06:34:20,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:20,516 INFO L225 Difference]: With dead ends: 82 [2022-01-10 06:34:20,516 INFO L226 Difference]: Without dead ends: 49 [2022-01-10 06:34:20,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:20,518 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 12 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:20,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 106 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-10 06:34:20,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-01-10 06:34:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 44 states have internal predecessors, (52), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 06:34:20,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2022-01-10 06:34:20,531 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 20 [2022-01-10 06:34:20,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:20,531 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2022-01-10 06:34:20,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,531 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2022-01-10 06:34:20,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 06:34:20,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:20,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:20,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:20,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:20,733 INFO L85 PathProgramCache]: Analyzing trace with hash 518851015, now seen corresponding path program 1 times [2022-01-10 06:34:20,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:20,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630389972] [2022-01-10 06:34:20,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:20,734 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:20,735 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 06:34:20,739 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 06:34:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:20,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:20,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:20,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:20,856 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:20,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630389972] [2022-01-10 06:34:20,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630389972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:20,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:20,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:20,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891890724] [2022-01-10 06:34:20,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:20,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:20,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:20,861 INFO L87 Difference]: Start difference. First operand 49 states and 62 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 06:34:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:20,872 INFO L93 Difference]: Finished difference Result 91 states and 118 transitions. [2022-01-10 06:34:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:20,873 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 06:34:20,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:20,873 INFO L225 Difference]: With dead ends: 91 [2022-01-10 06:34:20,874 INFO L226 Difference]: Without dead ends: 49 [2022-01-10 06:34:20,874 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 06:34:20,875 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:20,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 60 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:20,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-10 06:34:20,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-01-10 06:34:20,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 44 states have internal predecessors, (51), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 06:34:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2022-01-10 06:34:20,884 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 24 [2022-01-10 06:34:20,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:20,884 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2022-01-10 06:34:20,884 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 06:34:20,884 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2022-01-10 06:34:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 06:34:20,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:20,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:21,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,086 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:21,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:21,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1841427196, now seen corresponding path program 1 times [2022-01-10 06:34:21,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:21,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868626394] [2022-01-10 06:34:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:21,087 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:21,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:21,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:34:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:21,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:34:21,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:21,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:21,202 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:21,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868626394] [2022-01-10 06:34:21,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868626394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:21,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:21,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:34:21,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332237881] [2022-01-10 06:34:21,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:21,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:21,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:21,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:21,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:21,204 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 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 06:34:21,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:21,245 INFO L93 Difference]: Finished difference Result 126 states and 166 transitions. [2022-01-10 06:34:21,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:34:21,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-01-10 06:34:21,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:21,246 INFO L225 Difference]: With dead ends: 126 [2022-01-10 06:34:21,246 INFO L226 Difference]: Without dead ends: 84 [2022-01-10 06:34:21,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:34:21,248 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 32 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:21,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 234 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-01-10 06:34:21,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-01-10 06:34:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 66 states have (on average 1.303030303030303) internal successors, (86), 74 states have internal predecessors, (86), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (11), 7 states have call predecessors, (11), 10 states have call successors, (11) [2022-01-10 06:34:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 107 transitions. [2022-01-10 06:34:21,269 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 107 transitions. Word has length 29 [2022-01-10 06:34:21,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:21,269 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 107 transitions. [2022-01-10 06:34:21,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 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 06:34:21,270 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2022-01-10 06:34:21,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 06:34:21,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:21,272 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] [2022-01-10 06:34:21,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:21,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,476 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:21,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:21,476 INFO L85 PathProgramCache]: Analyzing trace with hash -285390625, now seen corresponding path program 1 times [2022-01-10 06:34:21,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:21,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184704629] [2022-01-10 06:34:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:21,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:21,483 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:21,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:34:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:21,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:34:21,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:21,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:21,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:21,578 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:21,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184704629] [2022-01-10 06:34:21,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184704629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:21,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:21,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:21,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37243548] [2022-01-10 06:34:21,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:21,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:21,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:21,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:21,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:21,579 INFO L87 Difference]: Start difference. First operand 84 states and 107 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 06:34:21,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:21,587 INFO L93 Difference]: Finished difference Result 148 states and 191 transitions. [2022-01-10 06:34:21,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:21,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 31 [2022-01-10 06:34:21,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:21,588 INFO L225 Difference]: With dead ends: 148 [2022-01-10 06:34:21,588 INFO L226 Difference]: Without dead ends: 71 [2022-01-10 06:34:21,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:21,590 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:21,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:21,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-01-10 06:34:21,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-01-10 06:34:21,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 59 states have internal predecessors, (68), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-10 06:34:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2022-01-10 06:34:21,595 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 31 [2022-01-10 06:34:21,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:21,596 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2022-01-10 06:34:21,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 06:34:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2022-01-10 06:34:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 06:34:21,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:21,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:21,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:21,805 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 06:34:21,805 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:21,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:21,806 INFO L85 PathProgramCache]: Analyzing trace with hash 351557534, now seen corresponding path program 1 times [2022-01-10 06:34:21,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:21,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442163515] [2022-01-10 06:34:21,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:21,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:21,807 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 06:34:21,809 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 06:34:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:21,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:34:21,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:21,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:21,988 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:21,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442163515] [2022-01-10 06:34:21,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442163515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:21,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:21,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:34:21,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644007089] [2022-01-10 06:34:21,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:21,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:34:21,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:21,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:34:21,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:34:21,990 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:34:22,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:22,126 INFO L93 Difference]: Finished difference Result 104 states and 125 transitions. [2022-01-10 06:34:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 06:34:22,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2022-01-10 06:34:22,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:22,127 INFO L225 Difference]: With dead ends: 104 [2022-01-10 06:34:22,127 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 06:34:22,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-10 06:34:22,128 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 82 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:22,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 300 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:34:22,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 06:34:22,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 06:34:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:22,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 06:34:22,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-01-10 06:34:22,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:22,129 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 06:34:22,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:34:22,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 06:34:22,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 06:34:22,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:34:22,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:22,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:22,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 06:34:22,794 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 700 706) no Hoare annotation was computed. [2022-01-10 06:34:22,795 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 700 706) the Hoare annotation is: true [2022-01-10 06:34:22,795 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2022-01-10 06:34:22,795 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-01-10 06:34:22,795 INFO L858 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2022-01-10 06:34:22,795 INFO L854 garLoopResultBuilder]: At program point L746(lines 741 748) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))))) [2022-01-10 06:34:22,795 INFO L858 garLoopResultBuilder]: For program point L680-1(lines 679 698) no Hoare annotation was computed. [2022-01-10 06:34:22,795 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 676 699) no Hoare annotation was computed. [2022-01-10 06:34:22,796 INFO L858 garLoopResultBuilder]: For program point L837(line 837) no Hoare annotation was computed. [2022-01-10 06:34:22,796 INFO L854 garLoopResultBuilder]: At program point L131(lines 126 134) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) .cse1 .cse2) .cse3) (or .cse0 .cse3 (and .cse1 (= |timeShift_getWaterLevel_#res#1| (_ bv1 32)) .cse2) (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:22,796 INFO L854 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))))) [2022-01-10 06:34:22,796 INFO L854 garLoopResultBuilder]: At program point L838(lines 833 840) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))))) [2022-01-10 06:34:22,796 INFO L854 garLoopResultBuilder]: At program point L99(lines 94 102) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))))) [2022-01-10 06:34:22,796 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2022-01-10 06:34:22,796 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))))) [2022-01-10 06:34:22,796 INFO L854 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (and (= (_ bv0 32) ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|)))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse2))) [2022-01-10 06:34:22,796 INFO L854 garLoopResultBuilder]: At program point L727-1(lines 708 732) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (and (= (_ bv0 32) ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|)))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse2))) [2022-01-10 06:34:22,797 INFO L854 garLoopResultBuilder]: At program point L756(lines 749 759) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))))) [2022-01-10 06:34:22,797 INFO L854 garLoopResultBuilder]: At program point L765(lines 760 768) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))))) [2022-01-10 06:34:22,797 INFO L858 garLoopResultBuilder]: For program point L819(lines 819 825) no Hoare annotation was computed. [2022-01-10 06:34:22,797 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 676 699) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (and (= (_ bv0 32) ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|)))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse2))) [2022-01-10 06:34:22,797 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 828) no Hoare annotation was computed. [2022-01-10 06:34:22,797 INFO L858 garLoopResultBuilder]: For program point L687-1(lines 687 693) no Hoare annotation was computed. [2022-01-10 06:34:22,797 INFO L854 garLoopResultBuilder]: At program point L815-1(lines 807 831) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| (_ bv2 32)) .cse2 .cse3)) (or .cse0 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| (_ bv1 32)) .cse2 (= |timeShift_getWaterLevel_#res#1| (_ bv1 32)) .cse3) .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:22,797 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 724) no Hoare annotation was computed. [2022-01-10 06:34:22,797 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 676 699) no Hoare annotation was computed. [2022-01-10 06:34:22,797 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 837) no Hoare annotation was computed. [2022-01-10 06:34:22,797 INFO L858 garLoopResultBuilder]: For program point L712(lines 712 729) no Hoare annotation was computed. [2022-01-10 06:34:22,798 INFO L861 garLoopResultBuilder]: At program point L514-2(lines 514 528) the Hoare annotation is: true [2022-01-10 06:34:22,798 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 504 533) no Hoare annotation was computed. [2022-01-10 06:34:22,798 INFO L861 garLoopResultBuilder]: At program point L510(line 510) the Hoare annotation is: true [2022-01-10 06:34:22,798 INFO L858 garLoopResultBuilder]: For program point L510-1(line 510) no Hoare annotation was computed. [2022-01-10 06:34:22,798 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 504 533) the Hoare annotation is: true [2022-01-10 06:34:22,798 INFO L861 garLoopResultBuilder]: At program point L529(lines 504 533) the Hoare annotation is: true [2022-01-10 06:34:22,798 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-01-10 06:34:22,798 INFO L858 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2022-01-10 06:34:22,798 INFO L861 garLoopResultBuilder]: At program point L518-1(lines 518 522) the Hoare annotation is: true [2022-01-10 06:34:22,798 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-01-10 06:34:22,798 INFO L858 garLoopResultBuilder]: For program point L634(lines 634 640) no Hoare annotation was computed. [2022-01-10 06:34:22,798 INFO L854 garLoopResultBuilder]: At program point L857(lines 853 859) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point L634-1(lines 634 640) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L861 garLoopResultBuilder]: At program point L663(lines 604 667) the Hoare annotation is: true [2022-01-10 06:34:22,799 INFO L854 garLoopResultBuilder]: At program point L626(line 626) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L854 garLoopResultBuilder]: At program point L660(lines 613 661) the Hoare annotation is: false [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point L590(lines 590 597) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point L590-2(lines 590 597) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point L615(lines 614 659) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point L644(lines 644 655) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 06:34:22,799 INFO L861 garLoopResultBuilder]: At program point L574(lines 567 576) the Hoare annotation is: true [2022-01-10 06:34:22,800 INFO L854 garLoopResultBuilder]: At program point L636(line 636) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,800 INFO L861 garLoopResultBuilder]: At program point L599(lines 580 602) the Hoare annotation is: true [2022-01-10 06:34:22,800 INFO L854 garLoopResultBuilder]: At program point L657(lines 614 659) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,800 INFO L858 garLoopResultBuilder]: For program point L624(lines 624 630) no Hoare annotation was computed. [2022-01-10 06:34:22,800 INFO L858 garLoopResultBuilder]: For program point L624-1(lines 624 630) no Hoare annotation was computed. [2022-01-10 06:34:22,800 INFO L854 garLoopResultBuilder]: At program point L872(lines 867 875) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:22,800 INFO L858 garLoopResultBuilder]: For program point L616(lines 616 620) no Hoare annotation was computed. [2022-01-10 06:34:22,800 INFO L854 garLoopResultBuilder]: At program point L864(lines 860 866) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:22,800 INFO L854 garLoopResultBuilder]: At program point L563(lines 559 565) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:22,800 INFO L858 garLoopResultBuilder]: For program point L650(lines 650 654) no Hoare annotation was computed. [2022-01-10 06:34:22,800 INFO L854 garLoopResultBuilder]: At program point L650-2(lines 644 655) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,800 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-01-10 06:34:22,801 INFO L858 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2022-01-10 06:34:22,801 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse2) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 .cse2))) [2022-01-10 06:34:22,803 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 06:34:22,804 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:34:22,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:34:22 BoogieIcfgContainer [2022-01-10 06:34:22,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:34:22,817 INFO L158 Benchmark]: Toolchain (without parser) took 3986.87ms. Allocated memory was 207.6MB in the beginning and 282.1MB in the end (delta: 74.4MB). Free memory was 156.8MB in the beginning and 206.7MB in the end (delta: -49.9MB). Peak memory consumption was 24.7MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,817 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 207.6MB. Free memory was 173.9MB in the beginning and 173.8MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:34:22,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.45ms. Allocated memory is still 207.6MB. Free memory was 156.6MB in the beginning and 169.8MB in the end (delta: -13.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.94ms. Allocated memory is still 207.6MB. Free memory was 169.8MB in the beginning and 167.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,818 INFO L158 Benchmark]: Boogie Preprocessor took 32.77ms. Allocated memory is still 207.6MB. Free memory was 167.7MB in the beginning and 166.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,818 INFO L158 Benchmark]: RCFGBuilder took 359.22ms. Allocated memory is still 207.6MB. Free memory was 166.1MB in the beginning and 150.4MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,818 INFO L158 Benchmark]: TraceAbstraction took 3099.76ms. Allocated memory was 207.6MB in the beginning and 282.1MB in the end (delta: 74.4MB). Free memory was 149.8MB in the beginning and 206.7MB in the end (delta: -56.8MB). Peak memory consumption was 18.7MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 207.6MB. Free memory was 173.9MB in the beginning and 173.8MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 436.45ms. Allocated memory is still 207.6MB. Free memory was 156.6MB in the beginning and 169.8MB in the end (delta: -13.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.94ms. Allocated memory is still 207.6MB. Free memory was 169.8MB in the beginning and 167.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.77ms. Allocated memory is still 207.6MB. Free memory was 167.7MB in the beginning and 166.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 359.22ms. Allocated memory is still 207.6MB. Free memory was 166.1MB in the beginning and 150.4MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3099.76ms. Allocated memory was 207.6MB in the beginning and 282.1MB in the end (delta: 74.4MB). Free memory was 149.8MB in the beginning and 206.7MB in the end (delta: -56.8MB). Peak memory consumption was 18.7MB. 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: 837]: 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 6 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 208 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 829 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 453 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 376 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 197 PreInvPairs, 217 NumberOfFragments, 626 HoareAnnotationTreeSize, 197 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 32 FomulaSimplificationsInter, 204 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 358 SizeOfPredicates, 10 NumberOfNonLiveVariables, 900 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || ((\result == 2bv32 && 0bv32 == pumpRunning) && waterLevel == \old(waterLevel))) || !(\old(pumpRunning) == 0bv32)) && (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || ((0bv32 == pumpRunning && \result == 1bv32) && waterLevel == \old(waterLevel))) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) && (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) - InvariantResult [Line: 833]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) - InvariantResult [Line: 860]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 807]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || (((\result == 2bv32 && tmp == 2bv32) && 0bv32 == pumpRunning) && waterLevel == \old(waterLevel))) && (((!(systemActive == 1bv32) || (((tmp == 1bv32 && 0bv32 == pumpRunning) && \result == 1bv32) && waterLevel == \old(waterLevel))) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 741]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 867]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: (((~bvadd16(waterLevel, 4294967295bv32) == 1bv32 && systemActive == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) || (((systemActive == 1bv32 && waterLevel == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 06:34:22,853 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...