./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_spec3_product14.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 8369ffe6be6d2c55428400826fc244d656d1bbae ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 08:43:58,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 08:43:58,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 08:43:58,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 08:43:58,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 08:43:58,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 08:43:58,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 08:43:58,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 08:43:58,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 08:43:58,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 08:43:58,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 08:43:58,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 08:43:58,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 08:43:58,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 08:43:58,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 08:43:58,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 08:43:58,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 08:43:58,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 08:43:58,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 08:43:58,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 08:43:58,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 08:43:58,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 08:43:58,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 08:43:58,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 08:43:58,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 08:43:58,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 08:43:58,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 08:43:58,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 08:43:58,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 08:43:58,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 08:43:58,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 08:43:58,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 08:43:58,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 08:43:58,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 08:43:58,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 08:43:58,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 08:43:58,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 08:43:58,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 08:43:58,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 08:43:58,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 08:43:58,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 08:43:58,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 08:43:58,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 08:43:58,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 08:43:58,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 08:43:58,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 08:43:58,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 08:43:58,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 08:43:58,371 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 08:43:58,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 08:43:58,371 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 08:43:58,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 08:43:58,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 08:43:58,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 08:43:58,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 08:43:58,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 08:43:58,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 08:43:58,372 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 08:43:58,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 08:43:58,373 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 08:43:58,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 08:43:58,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 08:43:58,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 08:43:58,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 08:43:58,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:43:58,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 08:43:58,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 08:43:58,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 08:43:58,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 08:43:58,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 08:43:58,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 08:43:58,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 08:43:58,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8369ffe6be6d2c55428400826fc244d656d1bbae [2021-08-26 08:43:58,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 08:43:58,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 08:43:58,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 08:43:58,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 08:43:58,668 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 08:43:58,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2021-08-26 08:43:58,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/837704032/96bbb701d17446699cd55fbbc4416be3/FLAG8f1bfe95b [2021-08-26 08:43:59,245 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 08:43:59,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2021-08-26 08:43:59,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/837704032/96bbb701d17446699cd55fbbc4416be3/FLAG8f1bfe95b [2021-08-26 08:43:59,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/837704032/96bbb701d17446699cd55fbbc4416be3 [2021-08-26 08:43:59,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 08:43:59,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 08:43:59,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 08:43:59,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 08:43:59,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 08:43:59,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:43:59" (1/1) ... [2021-08-26 08:43:59,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28adb1a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:59, skipping insertion in model container [2021-08-26 08:43:59,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:43:59" (1/1) ... [2021-08-26 08:43:59,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 08:43:59,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 08:43:59,912 WARN L228 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_spec3_product14.cil.c[1281,1294] [2021-08-26 08:44:00,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:44:00,038 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 08:44:00,049 WARN L228 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_spec3_product14.cil.c[1281,1294] [2021-08-26 08:44:00,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:44:00,106 INFO L208 MainTranslator]: Completed translation [2021-08-26 08:44:00,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00 WrapperNode [2021-08-26 08:44:00,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 08:44:00,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 08:44:00,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 08:44:00,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 08:44:00,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 08:44:00,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 08:44:00,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 08:44:00,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 08:44:00,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 08:44:00,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 08:44:00,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 08:44:00,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 08:44:00,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (1/1) ... [2021-08-26 08:44:00,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:44:00,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:44:00,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 08:44:00,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 08:44:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 08:44:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 08:44:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 08:44:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 08:44:01,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 08:44:01,093 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-08-26 08:44:01,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:01 BoogieIcfgContainer [2021-08-26 08:44:01,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 08:44:01,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 08:44:01,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 08:44:01,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 08:44:01,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:43:59" (1/3) ... [2021-08-26 08:44:01,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b41ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:44:01, skipping insertion in model container [2021-08-26 08:44:01,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:00" (2/3) ... [2021-08-26 08:44:01,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b41ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:44:01, skipping insertion in model container [2021-08-26 08:44:01,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:01" (3/3) ... [2021-08-26 08:44:01,103 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2021-08-26 08:44:01,107 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 08:44:01,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 08:44:01,161 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 08:44:01,169 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 08:44:01,169 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 08:44:01,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-26 08:44:01,190 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:01,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:01,192 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:01,200 INFO L82 PathProgramCache]: Analyzing trace with hash -688968604, now seen corresponding path program 1 times [2021-08-26 08:44:01,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:01,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460500309] [2021-08-26 08:44:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:01,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:01,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:01,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460500309] [2021-08-26 08:44:01,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460500309] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:01,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:01,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:44:01,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905585543] [2021-08-26 08:44:01,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 08:44:01,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:01,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 08:44:01,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:44:01,470 INFO L87 Difference]: Start difference. First operand has 75 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:01,500 INFO L93 Difference]: Finished difference Result 144 states and 215 transitions. [2021-08-26 08:44:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 08:44:01,502 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-26 08:44:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:01,510 INFO L225 Difference]: With dead ends: 144 [2021-08-26 08:44:01,510 INFO L226 Difference]: Without dead ends: 71 [2021-08-26 08:44:01,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:44:01,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-08-26 08:44:01,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-08-26 08:44:01,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.4558823529411764) internal successors, (99), 70 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2021-08-26 08:44:01,554 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2021-08-26 08:44:01,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:01,555 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2021-08-26 08:44:01,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,555 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2021-08-26 08:44:01,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 08:44:01,556 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:01,557 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:01,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 08:44:01,557 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:01,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:01,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1599999357, now seen corresponding path program 1 times [2021-08-26 08:44:01,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:01,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031931891] [2021-08-26 08:44:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:01,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:01,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:01,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031931891] [2021-08-26 08:44:01,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031931891] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:01,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:01,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:44:01,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910306476] [2021-08-26 08:44:01,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:44:01,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:44:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:01,710 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:01,728 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2021-08-26 08:44:01,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:44:01,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-26 08:44:01,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:01,730 INFO L225 Difference]: With dead ends: 71 [2021-08-26 08:44:01,730 INFO L226 Difference]: Without dead ends: 33 [2021-08-26 08:44:01,731 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:01,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-08-26 08:44:01,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-08-26 08:44:01,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.4375) internal successors, (46), 32 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2021-08-26 08:44:01,739 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2021-08-26 08:44:01,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:01,739 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2021-08-26 08:44:01,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,741 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2021-08-26 08:44:01,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 08:44:01,743 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:01,743 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:01,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 08:44:01,744 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:01,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1180040056, now seen corresponding path program 1 times [2021-08-26 08:44:01,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:01,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814910598] [2021-08-26 08:44:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:01,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:01,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:01,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814910598] [2021-08-26 08:44:01,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814910598] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:01,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:01,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:44:01,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519325515] [2021-08-26 08:44:01,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:44:01,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:01,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:44:01,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:01,864 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:01,887 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2021-08-26 08:44:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:44:01,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-26 08:44:01,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:01,889 INFO L225 Difference]: With dead ends: 60 [2021-08-26 08:44:01,889 INFO L226 Difference]: Without dead ends: 33 [2021-08-26 08:44:01,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-08-26 08:44:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-08-26 08:44:01,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.40625) internal successors, (45), 32 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2021-08-26 08:44:01,896 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2021-08-26 08:44:01,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:01,897 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2021-08-26 08:44:01,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2021-08-26 08:44:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-26 08:44:01,899 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:01,899 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:01,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 08:44:01,900 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:01,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:01,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1819191868, now seen corresponding path program 1 times [2021-08-26 08:44:01,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:01,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191854841] [2021-08-26 08:44:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:01,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:02,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:02,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191854841] [2021-08-26 08:44:02,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191854841] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:02,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:02,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:44:02,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451769576] [2021-08-26 08:44:02,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:02,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:02,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:02,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:02,020 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:02,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:02,122 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2021-08-26 08:44:02,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 08:44:02,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-26 08:44:02,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:02,132 INFO L225 Difference]: With dead ends: 158 [2021-08-26 08:44:02,132 INFO L226 Difference]: Without dead ends: 131 [2021-08-26 08:44:02,133 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 31.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:44:02,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-26 08:44:02,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2021-08-26 08:44:02,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.4) internal successors, (77), 55 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2021-08-26 08:44:02,152 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2021-08-26 08:44:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:02,152 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2021-08-26 08:44:02,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:44:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2021-08-26 08:44:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-26 08:44:02,154 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:02,154 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:02,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 08:44:02,155 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:02,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:02,155 INFO L82 PathProgramCache]: Analyzing trace with hash 516466438, now seen corresponding path program 1 times [2021-08-26 08:44:02,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:02,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866521813] [2021-08-26 08:44:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:02,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 08:44:02,248 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 08:44:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 08:44:02,338 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 08:44:02,339 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 08:44:02,340 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:02,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:02,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:02,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 08:44:02,348 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 08:44:02,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:44:02 BoogieIcfgContainer [2021-08-26 08:44:02,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 08:44:02,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 08:44:02,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 08:44:02,459 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 08:44:02,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:01" (3/4) ... [2021-08-26 08:44:02,461 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 08:44:02,534 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 08:44:02,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 08:44:02,536 INFO L168 Benchmark]: Toolchain (without parser) took 2784.12 ms. Allocated memory was 50.3 MB in the beginning and 75.5 MB in the end (delta: 25.2 MB). Free memory was 26.5 MB in the beginning and 52.6 MB in the end (delta: -26.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:02,537 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.6 MB in the beginning and 32.5 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 08:44:02,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.70 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.4 MB in the beginning and 39.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:02,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.06 ms. Allocated memory is still 62.9 MB. Free memory was 39.2 MB in the beginning and 36.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:02,538 INFO L168 Benchmark]: Boogie Preprocessor took 40.39 ms. Allocated memory is still 62.9 MB. Free memory was 36.1 MB in the beginning and 34.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:02,538 INFO L168 Benchmark]: RCFGBuilder took 855.73 ms. Allocated memory is still 62.9 MB. Free memory was 33.8 MB in the beginning and 29.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:02,539 INFO L168 Benchmark]: TraceAbstraction took 1361.68 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 28.3 MB in the beginning and 34.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:02,539 INFO L168 Benchmark]: Witness Printer took 76.31 ms. Allocated memory is still 75.5 MB. Free memory was 34.3 MB in the beginning and 52.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:02,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.6 MB in the beginning and 32.5 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 355.70 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.4 MB in the beginning and 39.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.06 ms. Allocated memory is still 62.9 MB. Free memory was 39.2 MB in the beginning and 36.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.39 ms. Allocated memory is still 62.9 MB. Free memory was 36.1 MB in the beginning and 34.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 855.73 ms. Allocated memory is still 62.9 MB. Free memory was 33.8 MB in the beginning and 29.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1361.68 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 28.3 MB in the beginning and 34.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * Witness Printer took 76.31 ms. Allocated memory is still 75.5 MB. Free memory was 34.3 MB in the beginning and 52.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L460] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L727] int cleanupTimeShifts = 4; [L823] int waterLevel = 1; [L824] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] int retValue_acc ; [L801] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L807] tmp = valid_product() [L809] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L661] int splverifierCounter ; [L662] int tmp ; [L663] int tmp___0 ; [L664] int tmp___1 ; [L665] int tmp___2 ; [L668] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L672] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L678] tmp = __VERIFIER_nondet_int() [L680] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L841] COND TRUE waterLevel < 2 [L842] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L688] tmp___0 = __VERIFIER_nondet_int() [L690] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] tmp___2 = __VERIFIER_nondet_int() [L700] COND TRUE \read(tmp___2) [L286] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L862] int retValue_acc ; [L865] retValue_acc = methaneLevelCritical [L866] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L894] int retValue_acc ; [L897] retValue_acc = waterLevel [L898] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L46] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 75 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1187.3ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 14.2ms, AutomataDifference: 218.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 262 SDtfs, 251 SDslu, 173 SDs, 0 SdLazy, 36 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 59.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 59.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.0ms SsaConstructionTime, 286.7ms SatisfiabilityAnalysisTime, 310.5ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-26 08:44:02,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...