./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_spec2_product41.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 2e4978c2419e4c1644022dd229f44f68c9d14c10177af084ee11ac932b0c1016 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:23:51,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:23:51,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:23:51,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:23:51,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:23:51,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:23:51,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:23:51,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:23:51,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:23:51,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:23:51,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:23:51,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:23:51,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:23:51,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:23:51,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:23:51,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:23:51,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:23:51,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:23:51,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:23:51,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:23:51,153 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:23:51,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:23:51,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:23:51,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:23:51,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:23:51,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:23:51,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:23:51,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:23:51,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:23:51,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:23:51,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:23:51,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:23:51,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:23:51,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:23:51,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:23:51,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:23:51,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:23:51,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:23:51,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:23:51,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:23:51,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:23:51,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:23:51,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:23:51,191 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:23:51,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:23:51,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:23:51,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:23:51,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:23:51,193 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:23:51,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:23:51,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:23:51,194 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:23:51,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:23:51,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:23:51,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:23:51,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:23:51,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:23:51,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:23:51,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:23:51,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:23:51,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:23:51,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:23:51,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:23:51,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:23:51,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:23:51,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:23:51,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:23:51,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:51,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:23:51,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:23:51,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:23:51,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:23:51,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:23:51,198 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:23:51,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:23:51,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:23:51,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4978c2419e4c1644022dd229f44f68c9d14c10177af084ee11ac932b0c1016 [2022-07-19 17:23:51,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:23:51,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:23:51,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:23:51,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:23:51,367 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:23:51,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2022-07-19 17:23:51,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1fe20082/948221e9b8ec44edaeadff73f28c2682/FLAG673cf6c36 [2022-07-19 17:23:51,778 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:23:51,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2022-07-19 17:23:51,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1fe20082/948221e9b8ec44edaeadff73f28c2682/FLAG673cf6c36 [2022-07-19 17:23:51,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1fe20082/948221e9b8ec44edaeadff73f28c2682 [2022-07-19 17:23:51,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:23:51,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:23:51,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:51,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:23:51,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:23:51,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:51" (1/1) ... [2022-07-19 17:23:51,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6486e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:51, skipping insertion in model container [2022-07-19 17:23:51,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:51" (1/1) ... [2022-07-19 17:23:51,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:23:51,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:23:52,043 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_spec2_product41.cil.c[17041,17054] [2022-07-19 17:23:52,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:52,067 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:23:52,138 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_spec2_product41.cil.c[17041,17054] [2022-07-19 17:23:52,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:52,157 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:23:52,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52 WrapperNode [2022-07-19 17:23:52,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:52,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:52,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:23:52,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:23:52,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,193 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 242 [2022-07-19 17:23:52,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:52,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:23:52,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:23:52,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:23:52,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:23:52,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:23:52,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:23:52,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:23:52,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (1/1) ... [2022-07-19 17:23:52,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:52,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:23:52,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:23:52,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:23:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:23:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:23:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:23:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:23:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:23:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:23:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:23:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-19 17:23:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-19 17:23:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:23:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:23:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:23:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:23:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:23:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:23:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:23:52,394 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:23:52,395 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:23:52,794 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:23:52,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:23:52,799 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:23:52,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:52 BoogieIcfgContainer [2022-07-19 17:23:52,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:23:52,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:23:52,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:23:52,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:23:52,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:23:51" (1/3) ... [2022-07-19 17:23:52,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe24138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:52, skipping insertion in model container [2022-07-19 17:23:52,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:52" (2/3) ... [2022-07-19 17:23:52,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe24138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:52, skipping insertion in model container [2022-07-19 17:23:52,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:52" (3/3) ... [2022-07-19 17:23:52,808 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2022-07-19 17:23:52,819 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:23:52,820 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:23:52,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:23:52,873 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@a0fef6a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@340de57a [2022-07-19 17:23:52,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:23:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-19 17:23:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 17:23:52,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:52,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:52,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:52,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:52,900 INFO L85 PathProgramCache]: Analyzing trace with hash 728927255, now seen corresponding path program 1 times [2022-07-19 17:23:52,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:52,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742836442] [2022-07-19 17:23:52,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:52,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:23:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:53,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:53,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742836442] [2022-07-19 17:23:53,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742836442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:53,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:53,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:23:53,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664253170] [2022-07-19 17:23:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:53,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:23:53,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:53,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:23:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:53,139 INFO L87 Difference]: Start difference. First operand has 81 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:53,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:53,171 INFO L93 Difference]: Finished difference Result 153 states and 210 transitions. [2022-07-19 17:23:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:23:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-19 17:23:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:53,182 INFO L225 Difference]: With dead ends: 153 [2022-07-19 17:23:53,183 INFO L226 Difference]: Without dead ends: 72 [2022-07-19 17:23:53,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:53,188 INFO L413 NwaCegarLoop]: 102 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, 102 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:53,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-07-19 17:23:53,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-07-19 17:23:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 61 states have internal predecessors, (74), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-19 17:23:53,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2022-07-19 17:23:53,276 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 25 [2022-07-19 17:23:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:53,276 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2022-07-19 17:23:53,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2022-07-19 17:23:53,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-19 17:23:53,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:53,280 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:23:53,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:23:53,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:53,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1592613902, now seen corresponding path program 1 times [2022-07-19 17:23:53,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:53,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409939714] [2022-07-19 17:23:53,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:53,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 17:23:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:53,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:53,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409939714] [2022-07-19 17:23:53,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409939714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:53,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:53,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:53,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172089967] [2022-07-19 17:23:53,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:53,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:53,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:53,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:53,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:53,367 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:53,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:53,382 INFO L93 Difference]: Finished difference Result 109 states and 141 transitions. [2022-07-19 17:23:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:53,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-19 17:23:53,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:53,384 INFO L225 Difference]: With dead ends: 109 [2022-07-19 17:23:53,384 INFO L226 Difference]: Without dead ends: 63 [2022-07-19 17:23:53,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:53,385 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 12 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:53,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:53,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-19 17:23:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-19 17:23:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.34) internal successors, (67), 55 states have internal predecessors, (67), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 17:23:53,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2022-07-19 17:23:53,391 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 26 [2022-07-19 17:23:53,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:53,392 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2022-07-19 17:23:53,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:53,392 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2022-07-19 17:23:53,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 17:23:53,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:53,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:53,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:23:53,393 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:53,394 INFO L85 PathProgramCache]: Analyzing trace with hash -140844723, now seen corresponding path program 1 times [2022-07-19 17:23:53,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:53,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401751538] [2022-07-19 17:23:53,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:53,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:53,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:53,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401751538] [2022-07-19 17:23:53,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401751538] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:53,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:53,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:53,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349395295] [2022-07-19 17:23:53,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:53,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:53,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:53,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:53,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:53,469 INFO L87 Difference]: Start difference. First operand 63 states and 81 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:53,532 INFO L93 Difference]: Finished difference Result 118 states and 155 transitions. [2022-07-19 17:23:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:23:53,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-19 17:23:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:53,533 INFO L225 Difference]: With dead ends: 118 [2022-07-19 17:23:53,533 INFO L226 Difference]: Without dead ends: 63 [2022-07-19 17:23:53,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:23:53,535 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:53,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 166 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:53,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-19 17:23:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-19 17:23:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.32) internal successors, (66), 55 states have internal predecessors, (66), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 17:23:53,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2022-07-19 17:23:53,540 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 30 [2022-07-19 17:23:53,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:53,541 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2022-07-19 17:23:53,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:53,541 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2022-07-19 17:23:53,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:23:53,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:53,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:53,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:23:53,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:53,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:53,543 INFO L85 PathProgramCache]: Analyzing trace with hash 243646208, now seen corresponding path program 1 times [2022-07-19 17:23:53,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:53,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829574354] [2022-07-19 17:23:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:53,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:23:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:53,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:53,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829574354] [2022-07-19 17:23:53,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829574354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:53,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:53,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:53,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525216283] [2022-07-19 17:23:53,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:53,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:53,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:53,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:53,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:53,573 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:53,586 INFO L93 Difference]: Finished difference Result 158 states and 205 transitions. [2022-07-19 17:23:53,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:53,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-07-19 17:23:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:53,588 INFO L225 Difference]: With dead ends: 158 [2022-07-19 17:23:53,588 INFO L226 Difference]: Without dead ends: 103 [2022-07-19 17:23:53,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:53,589 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 53 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:53,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 145 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:53,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-19 17:23:53,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2022-07-19 17:23:53,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 86 states have internal predecessors, (104), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-19 17:23:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 128 transitions. [2022-07-19 17:23:53,598 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 128 transitions. Word has length 35 [2022-07-19 17:23:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:53,599 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 128 transitions. [2022-07-19 17:23:53,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 128 transitions. [2022-07-19 17:23:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-19 17:23:53,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:53,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:53,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:23:53,600 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:53,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1746897546, now seen corresponding path program 1 times [2022-07-19 17:23:53,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:53,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876020341] [2022-07-19 17:23:53,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:53,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 17:23:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 17:23:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:53,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:53,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876020341] [2022-07-19 17:23:53,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876020341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:53,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:53,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:53,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79918612] [2022-07-19 17:23:53,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:53,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:53,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:53,642 INFO L87 Difference]: Start difference. First operand 101 states and 128 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:53,680 INFO L93 Difference]: Finished difference Result 266 states and 351 transitions. [2022-07-19 17:23:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:23:53,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-07-19 17:23:53,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:53,682 INFO L225 Difference]: With dead ends: 266 [2022-07-19 17:23:53,682 INFO L226 Difference]: Without dead ends: 173 [2022-07-19 17:23:53,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:23:53,683 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 99 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:53,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 405 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:53,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-07-19 17:23:53,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 103. [2022-07-19 17:23:53,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 81 states have (on average 1.308641975308642) internal successors, (106), 88 states have internal predecessors, (106), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-19 17:23:53,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2022-07-19 17:23:53,694 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 41 [2022-07-19 17:23:53,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:53,694 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-07-19 17:23:53,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,695 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2022-07-19 17:23:53,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-19 17:23:53,695 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:53,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:53,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:23:53,696 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:53,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash -859126008, now seen corresponding path program 1 times [2022-07-19 17:23:53,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:53,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714975757] [2022-07-19 17:23:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:53,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 17:23:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 17:23:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:53,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:53,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714975757] [2022-07-19 17:23:53,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714975757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:53,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:53,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:23:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276997980] [2022-07-19 17:23:53,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:53,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:23:53,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:23:53,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:23:53,760 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:53,787 INFO L93 Difference]: Finished difference Result 203 states and 260 transitions. [2022-07-19 17:23:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:53,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-07-19 17:23:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:53,789 INFO L225 Difference]: With dead ends: 203 [2022-07-19 17:23:53,789 INFO L226 Difference]: Without dead ends: 108 [2022-07-19 17:23:53,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:23:53,790 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 43 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:53,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 331 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:53,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-07-19 17:23:53,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2022-07-19 17:23:53,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.2875) internal successors, (103), 87 states have internal predecessors, (103), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-19 17:23:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2022-07-19 17:23:53,798 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 41 [2022-07-19 17:23:53,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:53,798 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2022-07-19 17:23:53,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2022-07-19 17:23:53,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-19 17:23:53,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:53,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:53,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:23:53,800 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:53,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:53,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1092647987, now seen corresponding path program 1 times [2022-07-19 17:23:53,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:53,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600865341] [2022-07-19 17:23:53,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:53,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 17:23:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 17:23:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:23:53,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:53,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600865341] [2022-07-19 17:23:53,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600865341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:53,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:53,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:23:53,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894034544] [2022-07-19 17:23:53,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:53,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:23:53,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:53,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:23:53,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:23:53,849 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:53,881 INFO L93 Difference]: Finished difference Result 220 states and 282 transitions. [2022-07-19 17:23:53,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:53,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-07-19 17:23:53,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:53,883 INFO L225 Difference]: With dead ends: 220 [2022-07-19 17:23:53,884 INFO L226 Difference]: Without dead ends: 126 [2022-07-19 17:23:53,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:23:53,885 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 40 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:53,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 340 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-07-19 17:23:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 105. [2022-07-19 17:23:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 90 states have internal predecessors, (106), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-19 17:23:53,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2022-07-19 17:23:53,903 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 47 [2022-07-19 17:23:53,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:53,904 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2022-07-19 17:23:53,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2022-07-19 17:23:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-19 17:23:53,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:53,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:53,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:23:53,907 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:53,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:53,909 INFO L85 PathProgramCache]: Analyzing trace with hash 971128657, now seen corresponding path program 1 times [2022-07-19 17:23:53,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:53,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557147223] [2022-07-19 17:23:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:53,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 17:23:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 17:23:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:23:53,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:53,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557147223] [2022-07-19 17:23:53,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557147223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:53,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:53,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:53,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459970119] [2022-07-19 17:23:53,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:53,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:53,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:53,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:53,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:53,973 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:53,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:53,989 INFO L93 Difference]: Finished difference Result 243 states and 305 transitions. [2022-07-19 17:23:53,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:53,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-07-19 17:23:53,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:53,992 INFO L225 Difference]: With dead ends: 243 [2022-07-19 17:23:53,992 INFO L226 Difference]: Without dead ends: 146 [2022-07-19 17:23:53,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:53,994 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 34 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:53,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 152 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-07-19 17:23:54,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-07-19 17:23:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 115 states have (on average 1.2521739130434784) internal successors, (144), 123 states have internal predecessors, (144), 16 states have call successors, (16), 15 states have call predecessors, (16), 14 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2022-07-19 17:23:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 178 transitions. [2022-07-19 17:23:54,010 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 178 transitions. Word has length 47 [2022-07-19 17:23:54,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:54,010 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 178 transitions. [2022-07-19 17:23:54,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 178 transitions. [2022-07-19 17:23:54,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-19 17:23:54,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:54,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:54,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:23:54,013 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:54,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:54,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1356661239, now seen corresponding path program 1 times [2022-07-19 17:23:54,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:54,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783007740] [2022-07-19 17:23:54,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:54,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:23:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:23:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 17:23:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:23:54,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:54,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783007740] [2022-07-19 17:23:54,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783007740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:54,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:54,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 17:23:54,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88085152] [2022-07-19 17:23:54,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:54,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 17:23:54,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:54,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 17:23:54,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:23:54,096 INFO L87 Difference]: Start difference. First operand 146 states and 178 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 17:23:54,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:54,486 INFO L93 Difference]: Finished difference Result 557 states and 703 transitions. [2022-07-19 17:23:54,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-19 17:23:54,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-07-19 17:23:54,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:54,488 INFO L225 Difference]: With dead ends: 557 [2022-07-19 17:23:54,488 INFO L226 Difference]: Without dead ends: 419 [2022-07-19 17:23:54,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=923, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 17:23:54,490 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 235 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:54,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 614 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:23:54,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-19 17:23:54,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 351. [2022-07-19 17:23:54,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 276 states have (on average 1.213768115942029) internal successors, (335), 295 states have internal predecessors, (335), 40 states have call successors, (40), 30 states have call predecessors, (40), 34 states have return successors, (55), 38 states have call predecessors, (55), 40 states have call successors, (55) [2022-07-19 17:23:54,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 430 transitions. [2022-07-19 17:23:54,506 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 430 transitions. Word has length 51 [2022-07-19 17:23:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:54,506 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 430 transitions. [2022-07-19 17:23:54,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 17:23:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 430 transitions. [2022-07-19 17:23:54,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 17:23:54,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:54,508 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:54,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:23:54,508 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:54,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:54,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2077328626, now seen corresponding path program 1 times [2022-07-19 17:23:54,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:54,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049768358] [2022-07-19 17:23:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:54,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:23:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 17:23:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 17:23:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:23:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:23:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-19 17:23:54,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:54,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049768358] [2022-07-19 17:23:54,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049768358] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:23:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588196323] [2022-07-19 17:23:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:54,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:23:54,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:23:54,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:23:54,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:23:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:54,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 17:23:54,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:23:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:23:54,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:23:54,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588196323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:54,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:23:54,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2022-07-19 17:23:54,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058765561] [2022-07-19 17:23:54,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:54,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:54,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:54,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:54,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:54,711 INFO L87 Difference]: Start difference. First operand 351 states and 430 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-19 17:23:54,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:54,734 INFO L93 Difference]: Finished difference Result 539 states and 673 transitions. [2022-07-19 17:23:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:54,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 83 [2022-07-19 17:23:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:54,737 INFO L225 Difference]: With dead ends: 539 [2022-07-19 17:23:54,737 INFO L226 Difference]: Without dead ends: 537 [2022-07-19 17:23:54,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:54,738 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 39 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:54,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 155 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-07-19 17:23:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 396. [2022-07-19 17:23:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 310 states have (on average 1.229032258064516) internal successors, (381), 332 states have internal predecessors, (381), 45 states have call successors, (45), 35 states have call predecessors, (45), 40 states have return successors, (67), 43 states have call predecessors, (67), 45 states have call successors, (67) [2022-07-19 17:23:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 493 transitions. [2022-07-19 17:23:54,756 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 493 transitions. Word has length 83 [2022-07-19 17:23:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:54,757 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 493 transitions. [2022-07-19 17:23:54,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-19 17:23:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 493 transitions. [2022-07-19 17:23:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-19 17:23:54,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:54,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:54,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 17:23:54,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-19 17:23:54,976 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:54,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:54,977 INFO L85 PathProgramCache]: Analyzing trace with hash 170555403, now seen corresponding path program 1 times [2022-07-19 17:23:54,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:54,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821162417] [2022-07-19 17:23:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:54,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:23:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:23:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:23:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 17:23:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 17:23:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:23:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:23:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 17:23:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:23:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:23:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 41 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-19 17:23:55,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:55,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821162417] [2022-07-19 17:23:55,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821162417] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:23:55,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892995699] [2022-07-19 17:23:55,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:55,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:23:55,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:23:55,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:23:55,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 17:23:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:55,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:23:55,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:23:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-19 17:23:55,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:23:55,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892995699] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:55,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:23:55,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 18 [2022-07-19 17:23:55,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102948612] [2022-07-19 17:23:55,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:55,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:23:55,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:55,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:23:55,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-07-19 17:23:55,414 INFO L87 Difference]: Start difference. First operand 396 states and 493 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-19 17:23:55,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:55,499 INFO L93 Difference]: Finished difference Result 802 states and 1004 transitions. [2022-07-19 17:23:55,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:23:55,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 118 [2022-07-19 17:23:55,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:55,502 INFO L225 Difference]: With dead ends: 802 [2022-07-19 17:23:55,502 INFO L226 Difference]: Without dead ends: 414 [2022-07-19 17:23:55,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-19 17:23:55,504 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 73 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:55,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 490 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:55,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-07-19 17:23:55,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 382. [2022-07-19 17:23:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.2159468438538206) internal successors, (366), 321 states have internal predecessors, (366), 43 states have call successors, (43), 34 states have call predecessors, (43), 37 states have return successors, (55), 41 states have call predecessors, (55), 43 states have call successors, (55) [2022-07-19 17:23:55,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 464 transitions. [2022-07-19 17:23:55,522 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 464 transitions. Word has length 118 [2022-07-19 17:23:55,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:55,523 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 464 transitions. [2022-07-19 17:23:55,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-19 17:23:55,523 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 464 transitions. [2022-07-19 17:23:55,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-19 17:23:55,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:55,524 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:55,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 17:23:55,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-19 17:23:55,739 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:55,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:55,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1685387601, now seen corresponding path program 2 times [2022-07-19 17:23:55,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:55,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62486323] [2022-07-19 17:23:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:55,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 17:23:55,783 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 17:23:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 17:23:55,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 17:23:55,873 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 17:23:55,873 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:23:55,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:23:55,877 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:55,887 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:23:55,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:23:55 BoogieIcfgContainer [2022-07-19 17:23:55,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:23:55,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:23:55,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:23:55,967 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:23:55,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:52" (3/4) ... [2022-07-19 17:23:55,969 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 17:23:56,024 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:23:56,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:23:56,025 INFO L158 Benchmark]: Toolchain (without parser) took 4218.42ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 122.7MB in the beginning and 93.2MB in the end (delta: 29.5MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2022-07-19 17:23:56,025 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:23:56,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.86ms. Allocated memory is still 157.3MB. Free memory was 122.4MB in the beginning and 121.0MB in the end (delta: 1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 17:23:56,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.82ms. Allocated memory is still 157.3MB. Free memory was 121.0MB in the beginning and 118.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:56,025 INFO L158 Benchmark]: Boogie Preprocessor took 50.77ms. Allocated memory is still 157.3MB. Free memory was 118.5MB in the beginning and 117.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:23:56,026 INFO L158 Benchmark]: RCFGBuilder took 555.76ms. Allocated memory is still 157.3MB. Free memory was 117.2MB in the beginning and 101.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-19 17:23:56,026 INFO L158 Benchmark]: TraceAbstraction took 3164.14ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 100.5MB in the beginning and 101.6MB in the end (delta: -1.1MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-07-19 17:23:56,026 INFO L158 Benchmark]: Witness Printer took 57.53ms. Allocated memory is still 188.7MB. Free memory was 101.6MB in the beginning and 93.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 17:23:56,027 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.86ms. Allocated memory is still 157.3MB. Free memory was 122.4MB in the beginning and 121.0MB in the end (delta: 1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.82ms. Allocated memory is still 157.3MB. Free memory was 121.0MB in the beginning and 118.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.77ms. Allocated memory is still 157.3MB. Free memory was 118.5MB in the beginning and 117.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 555.76ms. Allocated memory is still 157.3MB. Free memory was 117.2MB in the beginning and 101.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3164.14ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 100.5MB in the beginning and 101.6MB in the end (delta: -1.1MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * Witness Printer took 57.53ms. Allocated memory is still 188.7MB. Free memory was 101.6MB in the beginning and 93.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 840]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L53] int methAndRunningLastTime ; [L261] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L465] int pumpRunning = 0; [L466] int systemActive = 1; [L638] int waterLevel = 1; [L639] int methaneLevelCritical = 0; [L845] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L919] int retValue_acc ; [L920] int tmp ; [L924] FCALL select_helpers() [L925] FCALL select_features() [L926] CALL, EXPR valid_product() [L827] int retValue_acc ; [L830] retValue_acc = 1 [L831] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L926] RET, EXPR valid_product() [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) [L930] FCALL setup() [L931] CALL runTest() [L912] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] RET __utac_acc__Specification2_spec__1() [L913] CALL test() [L734] int splverifierCounter ; [L735] int tmp ; [L736] int tmp___0 ; [L737] int tmp___1 ; [L738] int tmp___2 ; [L741] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L743] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L745] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L751] tmp = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L755] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] COND TRUE waterLevel < 2 [L657] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L755] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L786] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L472] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L504] COND TRUE ! pumpRunning [L506] CALL, EXPR isHighWaterLevel() [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L622] CALL, EXPR isHighWaterSensorDry() [L718] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L721] COND FALSE !(waterLevel < 2) [L725] retValue_acc = 0 [L726] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L622] RET, EXPR isHighWaterSensorDry() [L622] tmp = isHighWaterSensorDry() [L624] COND FALSE !(\read(tmp)) [L627] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L506] RET, EXPR isHighWaterLevel() [L506] tmp = isHighWaterLevel() [L508] COND TRUE \read(tmp) [L510] CALL activatePump() [L535] int tmp ; [L539] CALL, EXPR isMethaneAlarm() [L560] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L564] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] retValue_acc = isMethaneLevelCritical() [L566] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L539] RET, EXPR isMethaneAlarm() [L539] tmp = isMethaneAlarm() [L541] COND FALSE !(\read(tmp)) [L545] CALL activatePump__wrappee__highWaterSensor() [L529] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L545] RET activatePump__wrappee__highWaterSensor() [L510] RET activatePump() [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L68] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L487] RET __utac_acc__Specification2_spec__2() [L786] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L743] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L745] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L751] tmp = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-2, waterLevel=2] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-2, waterLevel=2] [L765] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L668] COND FALSE !(\read(methaneLevelCritical)) [L671] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L765] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-2, waterLevel=2] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=2] [L786] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L472] COND TRUE \read(pumpRunning) [L474] CALL lowerWaterLevel() [L644] COND TRUE waterLevel > 0 [L645] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L474] RET lowerWaterLevel() [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L504] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L519] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L68] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L68] tmp = isMethaneLevelCritical() [L70] COND TRUE \read(tmp) [L72] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L72] RET, EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L75] COND FALSE !(\read(methAndRunningLastTime)) [L80] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L487] RET __utac_acc__Specification2_spec__2() [L786] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=1] [L743] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=1] [L745] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=1] [L751] tmp = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-3, tmp___2=-4, waterLevel=1] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-4, waterLevel=1] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-5, waterLevel=1] [L786] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L472] COND TRUE \read(pumpRunning) [L474] CALL lowerWaterLevel() [L644] COND TRUE waterLevel > 0 [L645] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L474] RET lowerWaterLevel() [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L504] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L519] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L68] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L68] tmp = isMethaneLevelCritical() [L70] COND TRUE \read(tmp) [L72] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L72] RET, EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L75] COND TRUE \read(methAndRunningLastTime) [L77] CALL __automaton_fail() [L840] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 808 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 788 mSDsluCounter, 3044 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2002 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 587 IncrementalHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 1042 mSDtfsCounter, 587 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 358 GetRequests, 279 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=396occurred in iteration=10, InterpolantAutomatonStates: 76, 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, 11 MinimizatonAttempts, 340 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 859 NumberOfCodeBlocks, 859 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 732 ConstructedInterpolants, 0 QuantifiedInterpolants, 1245 SizeOfPredicates, 5 NumberOfNonLiveVariables, 969 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 212/229 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 RESULT: Ultimate proved your program to be incorrect! [2022-07-19 17:23:56,080 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE