./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:00:09,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:00:09,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:00:09,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:00:09,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:00:09,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:00:09,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:00:09,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:00:09,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:00:09,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:00:09,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:00:09,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:00:09,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:00:09,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:00:09,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:00:09,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:00:09,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:00:09,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:00:09,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:00:09,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:00:09,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:00:09,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:00:09,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:00:09,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:00:09,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:00:09,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:00:09,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:00:09,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:00:09,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:00:09,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:00:09,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:00:09,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:00:09,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:00:09,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:00:09,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:00:09,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:00:09,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:00:09,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:00:09,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:00:09,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:00:09,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:00:10,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:00:10,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:00:10,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:00:10,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:00:10,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:00:10,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:00:10,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:00:10,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:00:10,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:00:10,039 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:00:10,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:00:10,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:00:10,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:00:10,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:00:10,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:00:10,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:00:10,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:00:10,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:00:10,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:00:10,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:00:10,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:00:10,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:00:10,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:00:10,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:00:10,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:00:10,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:10,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:00:10,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:00:10,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:00:10,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:00:10,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:00:10,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:00:10,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:00:10,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:00:10,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:00:10,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff [2021-12-16 01:00:10,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:00:10,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:00:10,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:00:10,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:00:10,330 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:00:10,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2021-12-16 01:00:10,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d1cd7488/8ccc5672c8e74fcdb6ad61b884db9ebd/FLAGac4eb0e2d [2021-12-16 01:00:10,787 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:00:10,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2021-12-16 01:00:10,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d1cd7488/8ccc5672c8e74fcdb6ad61b884db9ebd/FLAGac4eb0e2d [2021-12-16 01:00:10,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d1cd7488/8ccc5672c8e74fcdb6ad61b884db9ebd [2021-12-16 01:00:10,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:00:10,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:00:10,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:10,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:00:10,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:00:10,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:10" (1/1) ... [2021-12-16 01:00:10,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc44dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:10, skipping insertion in model container [2021-12-16 01:00:10,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:10" (1/1) ... [2021-12-16 01:00:10,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:00:10,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:00:11,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c[16697,16710] [2021-12-16 01:00:11,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:11,220 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:00:11,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c[16697,16710] [2021-12-16 01:00:11,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:11,304 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:00:11,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11 WrapperNode [2021-12-16 01:00:11,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:11,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:11,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:00:11,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:00:11,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,342 INFO L137 Inliner]: procedures = 51, calls = 147, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 196 [2021-12-16 01:00:11,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:11,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:00:11,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:00:11,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:00:11,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:00:11,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:00:11,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:00:11,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:00:11,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (1/1) ... [2021-12-16 01:00:11,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:11,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:11,407 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) [2021-12-16 01:00:11,424 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 [2021-12-16 01:00:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:00:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-16 01:00:11,439 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-16 01:00:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-16 01:00:11,439 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-16 01:00:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-16 01:00:11,439 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-16 01:00:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:00:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-16 01:00:11,440 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-16 01:00:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:00:11,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:00:11,499 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:00:11,500 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:00:11,715 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:00:11,719 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:00:11,719 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 01:00:11,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:11 BoogieIcfgContainer [2021-12-16 01:00:11,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:00:11,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:00:11,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:00:11,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:00:11,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:00:10" (1/3) ... [2021-12-16 01:00:11,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437ba691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:11, skipping insertion in model container [2021-12-16 01:00:11,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:11" (2/3) ... [2021-12-16 01:00:11,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437ba691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:11, skipping insertion in model container [2021-12-16 01:00:11,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:11" (3/3) ... [2021-12-16 01:00:11,727 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2021-12-16 01:00:11,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:00:11,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:00:11,777 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:00:11,783 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 [2021-12-16 01:00:11,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:00:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-16 01:00:11,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 01:00:11,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:11,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:11,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:11,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:11,804 INFO L85 PathProgramCache]: Analyzing trace with hash 104536911, now seen corresponding path program 1 times [2021-12-16 01:00:11,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:11,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721866032] [2021-12-16 01:00:11,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:11,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:11,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:11,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721866032] [2021-12-16 01:00:11,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721866032] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:11,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:11,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:11,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536812780] [2021-12-16 01:00:11,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:11,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 01:00:11,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:11,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 01:00:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:00:11,995 INFO L87 Difference]: Start difference. First operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:00:12,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:12,021 INFO L93 Difference]: Finished difference Result 118 states and 161 transitions. [2021-12-16 01:00:12,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 01:00:12,022 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 [2021-12-16 01:00:12,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:12,028 INFO L225 Difference]: With dead ends: 118 [2021-12-16 01:00:12,028 INFO L226 Difference]: Without dead ends: 54 [2021-12-16 01:00:12,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:00:12,034 INFO L933 BasicCegarLoop]: 77 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, 77 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 [2021-12-16 01:00:12,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-16 01:00:12,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-16 01:00:12,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 47 states have internal predecessors, (57), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-16 01:00:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2021-12-16 01:00:12,067 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 19 [2021-12-16 01:00:12,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:12,067 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2021-12-16 01:00:12,068 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) [2021-12-16 01:00:12,068 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2021-12-16 01:00:12,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-16 01:00:12,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:12,070 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] [2021-12-16 01:00:12,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:00:12,071 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:12,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:12,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2010419421, now seen corresponding path program 1 times [2021-12-16 01:00:12,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:12,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300123803] [2021-12-16 01:00:12,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:12,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:12,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:12,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300123803] [2021-12-16 01:00:12,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300123803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:12,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:12,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:00:12,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93933959] [2021-12-16 01:00:12,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:12,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:12,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:12,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:12,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:12,127 INFO L87 Difference]: Start difference. First operand 54 states and 68 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) [2021-12-16 01:00:12,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:12,135 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2021-12-16 01:00:12,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:12,135 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 [2021-12-16 01:00:12,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:12,136 INFO L225 Difference]: With dead ends: 69 [2021-12-16 01:00:12,136 INFO L226 Difference]: Without dead ends: 45 [2021-12-16 01:00:12,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:12,138 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 18 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:12,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:12,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-16 01:00:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-12-16 01:00:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 41 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 01:00:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2021-12-16 01:00:12,143 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2021-12-16 01:00:12,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:12,143 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2021-12-16 01:00:12,143 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) [2021-12-16 01:00:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2021-12-16 01:00:12,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-16 01:00:12,147 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:12,147 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] [2021-12-16 01:00:12,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:00:12,147 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1391456279, now seen corresponding path program 1 times [2021-12-16 01:00:12,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:12,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517063655] [2021-12-16 01:00:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:12,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:12,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:12,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517063655] [2021-12-16 01:00:12,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517063655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:12,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:12,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:00:12,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109546945] [2021-12-16 01:00:12,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:12,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:12,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:12,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:12,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:12,209 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:00:12,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:12,227 INFO L93 Difference]: Finished difference Result 119 states and 153 transitions. [2021-12-16 01:00:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:12,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-16 01:00:12,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:12,229 INFO L225 Difference]: With dead ends: 119 [2021-12-16 01:00:12,229 INFO L226 Difference]: Without dead ends: 81 [2021-12-16 01:00:12,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:12,231 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 48 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:12,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:12,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-16 01:00:12,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2021-12-16 01:00:12,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 68 states have internal predecessors, (85), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-16 01:00:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2021-12-16 01:00:12,240 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 25 [2021-12-16 01:00:12,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:12,240 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2021-12-16 01:00:12,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:00:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2021-12-16 01:00:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-16 01:00:12,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:12,242 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] [2021-12-16 01:00:12,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:00:12,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:12,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:12,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2118082784, now seen corresponding path program 1 times [2021-12-16 01:00:12,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:12,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935730660] [2021-12-16 01:00:12,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:12,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:12,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:12,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:12,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935730660] [2021-12-16 01:00:12,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935730660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:12,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:12,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:00:12,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490794832] [2021-12-16 01:00:12,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:12,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:00:12,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:12,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:00:12,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:00:12,305 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-12-16 01:00:12,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:12,344 INFO L93 Difference]: Finished difference Result 202 states and 272 transitions. [2021-12-16 01:00:12,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:12,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 26 [2021-12-16 01:00:12,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:12,348 INFO L225 Difference]: With dead ends: 202 [2021-12-16 01:00:12,348 INFO L226 Difference]: Without dead ends: 133 [2021-12-16 01:00:12,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:00:12,349 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 30 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 208 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 [2021-12-16 01:00:12,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 208 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:12,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-12-16 01:00:12,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-12-16 01:00:12,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 110 states have (on average 1.3272727272727274) internal successors, (146), 117 states have internal predecessors, (146), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (14), 10 states have call predecessors, (14), 12 states have call successors, (14) [2021-12-16 01:00:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 172 transitions. [2021-12-16 01:00:12,370 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 172 transitions. Word has length 26 [2021-12-16 01:00:12,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:12,370 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 172 transitions. [2021-12-16 01:00:12,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-12-16 01:00:12,370 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 172 transitions. [2021-12-16 01:00:12,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 01:00:12,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:12,372 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] [2021-12-16 01:00:12,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:00:12,372 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:12,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:12,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1144185819, now seen corresponding path program 1 times [2021-12-16 01:00:12,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:12,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462799862] [2021-12-16 01:00:12,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:12,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:12,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:12,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:12,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462799862] [2021-12-16 01:00:12,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462799862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:12,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:12,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:12,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138292890] [2021-12-16 01:00:12,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:12,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:12,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:12,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:12,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:12,423 INFO L87 Difference]: Start difference. First operand 133 states and 172 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:00:12,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:12,465 INFO L93 Difference]: Finished difference Result 251 states and 329 transitions. [2021-12-16 01:00:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:12,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-16 01:00:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:12,467 INFO L225 Difference]: With dead ends: 251 [2021-12-16 01:00:12,467 INFO L226 Difference]: Without dead ends: 125 [2021-12-16 01:00:12,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:12,469 INFO L933 BasicCegarLoop]: 47 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, 47 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 [2021-12-16 01:00:12,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:12,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-12-16 01:00:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-12-16 01:00:12,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 102 states have (on average 1.2745098039215685) internal successors, (130), 109 states have internal predecessors, (130), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-16 01:00:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 154 transitions. [2021-12-16 01:00:12,489 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 154 transitions. Word has length 28 [2021-12-16 01:00:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:12,489 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 154 transitions. [2021-12-16 01:00:12,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-12-16 01:00:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 154 transitions. [2021-12-16 01:00:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-16 01:00:12,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:12,495 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] [2021-12-16 01:00:12,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:00:12,495 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:12,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:12,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1922048634, now seen corresponding path program 1 times [2021-12-16 01:00:12,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:12,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072772049] [2021-12-16 01:00:12,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:12,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:12,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:12,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072772049] [2021-12-16 01:00:12,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072772049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:12,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:12,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:00:12,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414173915] [2021-12-16 01:00:12,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:12,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:12,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:12,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:00:12,590 INFO L87 Difference]: Start difference. First operand 125 states and 154 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 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) [2021-12-16 01:00:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:12,643 INFO L93 Difference]: Finished difference Result 135 states and 164 transitions. [2021-12-16 01:00:12,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 01:00:12,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-16 01:00:12,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:12,644 INFO L225 Difference]: With dead ends: 135 [2021-12-16 01:00:12,644 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 01:00:12,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:00:12,646 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 46 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:12,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 149 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:12,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 01:00:12,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 01:00:12,647 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) [2021-12-16 01:00:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 01:00:12,647 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-12-16 01:00:12,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:12,648 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 01:00:12,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 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) [2021-12-16 01:00:12,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 01:00:12,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 01:00:12,650 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 01:00:12,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:00:12,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-16 01:00:12,953 INFO L858 garLoopResultBuilder]: For program point L223-1(lines 219 230) no Hoare annotation was computed. [2021-12-16 01:00:12,954 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 219 230) the Hoare annotation is: true [2021-12-16 01:00:12,954 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 219 230) no Hoare annotation was computed. [2021-12-16 01:00:12,954 INFO L858 garLoopResultBuilder]: For program point L865(lines 865 871) no Hoare annotation was computed. [2021-12-16 01:00:12,954 INFO L858 garLoopResultBuilder]: For program point L861(lines 861 874) no Hoare annotation was computed. [2021-12-16 01:00:12,954 INFO L854 garLoopResultBuilder]: At program point L861-1(lines 853 877) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |timeShift_getWaterLevel_#res#1| 1) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~5#1| 1))))) [2021-12-16 01:00:12,954 INFO L854 garLoopResultBuilder]: At program point L345(lines 340 348) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= ~waterLevel~0 |old(~waterLevel~0)|)) .cse0))) [2021-12-16 01:00:12,955 INFO L854 garLoopResultBuilder]: At program point L310(lines 306 312) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2021-12-16 01:00:12,955 INFO L854 garLoopResultBuilder]: At program point L849(lines 844 851) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,955 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 203) no Hoare annotation was computed. [2021-12-16 01:00:12,955 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 282 305) no Hoare annotation was computed. [2021-12-16 01:00:12,955 INFO L854 garLoopResultBuilder]: At program point L199-2(lines 195 206) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,955 INFO L858 garLoopResultBuilder]: For program point L286-1(lines 285 304) no Hoare annotation was computed. [2021-12-16 01:00:12,955 INFO L858 garLoopResultBuilder]: For program point L848(line 848) no Hoare annotation was computed. [2021-12-16 01:00:12,955 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 282 305) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2021-12-16 01:00:12,956 INFO L854 garLoopResultBuilder]: At program point L268(lines 263 271) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (= |timeShift_getWaterLevel_#res#1| 1)))) [2021-12-16 01:00:12,956 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 282 305) no Hoare annotation was computed. [2021-12-16 01:00:12,956 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 848) no Hoare annotation was computed. [2021-12-16 01:00:12,956 INFO L858 garLoopResultBuilder]: For program point L293-1(lines 293 299) no Hoare annotation was computed. [2021-12-16 01:00:12,956 INFO L861 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2021-12-16 01:00:12,956 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2021-12-16 01:00:12,956 INFO L858 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2021-12-16 01:00:12,956 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2021-12-16 01:00:12,956 INFO L861 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2021-12-16 01:00:12,957 INFO L861 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2021-12-16 01:00:12,957 INFO L858 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2021-12-16 01:00:12,957 INFO L861 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2021-12-16 01:00:12,957 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-16 01:00:12,957 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-12-16 01:00:12,957 INFO L854 garLoopResultBuilder]: At program point L184(lines 179 187) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,957 INFO L854 garLoopResultBuilder]: At program point L469(lines 418 470) the Hoare annotation is: false [2021-12-16 01:00:12,957 INFO L854 garLoopResultBuilder]: At program point L176(lines 172 178) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,957 INFO L858 garLoopResultBuilder]: For program point L457(lines 457 463) no Hoare annotation was computed. [2021-12-16 01:00:12,958 INFO L854 garLoopResultBuilder]: At program point L457-2(lines 449 464) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,958 INFO L858 garLoopResultBuilder]: For program point L420(lines 419 468) no Hoare annotation was computed. [2021-12-16 01:00:12,958 INFO L858 garLoopResultBuilder]: For program point L449(lines 449 464) no Hoare annotation was computed. [2021-12-16 01:00:12,958 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-16 01:00:12,958 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-16 01:00:12,958 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-16 01:00:12,958 INFO L854 garLoopResultBuilder]: At program point L441(line 441) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,958 INFO L854 garLoopResultBuilder]: At program point L466(lines 419 468) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,958 INFO L858 garLoopResultBuilder]: For program point L429(lines 429 435) no Hoare annotation was computed. [2021-12-16 01:00:12,958 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2021-12-16 01:00:12,959 INFO L858 garLoopResultBuilder]: For program point L429-1(lines 429 435) no Hoare annotation was computed. [2021-12-16 01:00:12,959 INFO L858 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2021-12-16 01:00:12,959 INFO L854 garLoopResultBuilder]: At program point L169(lines 165 171) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,959 INFO L854 garLoopResultBuilder]: At program point L326(lines 321 328) the Hoare annotation is: false [2021-12-16 01:00:12,959 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2021-12-16 01:00:12,959 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-16 01:00:12,959 INFO L861 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2021-12-16 01:00:12,959 INFO L854 garLoopResultBuilder]: At program point L405(lines 400 407) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,960 INFO L861 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2021-12-16 01:00:12,960 INFO L854 garLoopResultBuilder]: At program point L397(lines 385 399) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,960 INFO L858 garLoopResultBuilder]: For program point L389(lines 389 395) no Hoare annotation was computed. [2021-12-16 01:00:12,960 INFO L858 garLoopResultBuilder]: For program point L389-2(lines 389 395) no Hoare annotation was computed. [2021-12-16 01:00:12,960 INFO L861 garLoopResultBuilder]: At program point L472(lines 409 476) the Hoare annotation is: true [2021-12-16 01:00:12,960 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2021-12-16 01:00:12,960 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 439 445) no Hoare annotation was computed. [2021-12-16 01:00:12,960 INFO L854 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,960 INFO L854 garLoopResultBuilder]: At program point L431(line 431) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~pumpRunning~0 0)) [2021-12-16 01:00:12,960 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 207 218) no Hoare annotation was computed. [2021-12-16 01:00:12,960 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 207 218) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2021-12-16 01:00:12,961 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 207 218) no Hoare annotation was computed. [2021-12-16 01:00:12,964 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-16 01:00:12,965 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 01:00:12,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:00:12 BoogieIcfgContainer [2021-12-16 01:00:12,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 01:00:12,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 01:00:12,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 01:00:12,980 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 01:00:12,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:11" (3/4) ... [2021-12-16 01:00:12,983 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 01:00:12,988 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-16 01:00:12,988 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-16 01:00:12,988 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-16 01:00:12,988 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-16 01:00:12,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2021-12-16 01:00:12,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-16 01:00:12,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-16 01:00:12,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-16 01:00:12,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 01:00:12,994 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:00:12,994 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:00:13,012 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(pumpRunning == 0) || waterLevel == \old(waterLevel) [2021-12-16 01:00:13,013 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || waterLevel == \old(waterLevel)) && ((!(\old(waterLevel) == 1) || !(pumpRunning == 0)) || \result == 1) [2021-12-16 01:00:13,013 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || waterLevel == \old(waterLevel)) && ((!(\old(waterLevel) == 1) || !(pumpRunning == 0)) || (\result == 1 && tmp == 1)) [2021-12-16 01:00:13,013 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(waterLevel) == 1) || !(pumpRunning == 0)) && ((\result == 0 && waterLevel == \old(waterLevel)) || !(pumpRunning == 0)) [2021-12-16 01:00:13,028 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 01:00:13,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 01:00:13,029 INFO L158 Benchmark]: Toolchain (without parser) took 2216.87ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 73.2MB in the beginning and 79.9MB in the end (delta: -6.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2021-12-16 01:00:13,029 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:00:13,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.38ms. Allocated memory is still 102.8MB. Free memory was 73.2MB in the beginning and 70.2MB in the end (delta: 2.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-16 01:00:13,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.56ms. Allocated memory is still 102.8MB. Free memory was 70.2MB in the beginning and 68.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:13,030 INFO L158 Benchmark]: Boogie Preprocessor took 19.74ms. Allocated memory is still 102.8MB. Free memory was 68.1MB in the beginning and 66.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:13,030 INFO L158 Benchmark]: RCFGBuilder took 356.56ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 52.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-16 01:00:13,031 INFO L158 Benchmark]: TraceAbstraction took 1257.32ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 52.2MB in the beginning and 84.1MB in the end (delta: -31.8MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:13,031 INFO L158 Benchmark]: Witness Printer took 49.09ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 79.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 01:00:13,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.38ms. Allocated memory is still 102.8MB. Free memory was 73.2MB in the beginning and 70.2MB in the end (delta: 2.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.56ms. Allocated memory is still 102.8MB. Free memory was 70.2MB in the beginning and 68.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.74ms. Allocated memory is still 102.8MB. Free memory was 68.1MB in the beginning and 66.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.56ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 52.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1257.32ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 52.2MB in the beginning and 84.1MB in the end (delta: -31.8MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Witness Printer took 49.09ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 79.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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: 848]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 671 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 336 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 161 PreInvPairs, 201 NumberOfFragments, 196 HoareAnnotationTreeSize, 161 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 701 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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: 409]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || waterLevel == \old(waterLevel)) && ((!(\old(waterLevel) == 1) || !(pumpRunning == 0)) || \result == 1) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || waterLevel == \old(waterLevel) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (splverifierCounter == 0 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || waterLevel == \old(waterLevel)) && ((!(\old(waterLevel) == 1) || !(pumpRunning == 0)) || (\result == 1 && tmp == 1)) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 340]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) == 1) || !(pumpRunning == 0)) && ((\result == 0 && waterLevel == \old(waterLevel)) || !(pumpRunning == 0)) RESULT: Ultimate proved your program to be correct! [2021-12-16 01:00:13,067 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE