./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/nla-digbench-scaling/bresenham-ll_valuebound20.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 cb384ff5c9201b9f90543357d3375f0a0ac9cc5fac01729f538d89799a1d7226 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 16:32:57,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 16:32:57,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 16:32:57,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 16:32:57,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 16:32:57,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 16:32:57,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 16:32:57,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 16:32:57,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 16:32:57,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 16:32:57,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 16:32:57,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 16:32:57,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 16:32:57,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 16:32:57,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 16:32:57,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 16:32:57,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 16:32:57,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 16:32:57,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 16:32:57,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 16:32:57,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 16:32:57,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 16:32:57,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 16:32:57,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 16:32:57,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 16:32:57,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 16:32:57,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 16:32:57,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 16:32:57,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 16:32:57,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 16:32:57,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 16:32:57,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 16:32:57,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 16:32:57,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 16:32:57,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 16:32:57,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 16:32:57,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 16:32:57,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 16:32:57,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 16:32:57,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 16:32:57,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 16:32:57,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 16:32:57,976 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 16:32:57,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 16:32:57,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 16:32:57,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 16:32:57,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 16:32:57,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 16:32:57,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 16:32:57,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 16:32:57,982 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 16:32:57,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 16:32:57,983 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 16:32:57,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 16:32:57,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 16:32:57,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 16:32:57,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 16:32:57,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 16:32:57,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 16:32:57,984 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 16:32:57,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 16:32:57,984 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 16:32:57,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 16:32:57,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 16:32:57,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 16:32:57,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 16:32:57,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 16:32:57,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 16:32:57,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 16:32:57,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 16:32:57,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 16:32:57,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 16:32:57,986 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 16:32:57,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 16:32:57,986 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 16:32:57,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 16:32:57,986 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 16:32:57,986 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb384ff5c9201b9f90543357d3375f0a0ac9cc5fac01729f538d89799a1d7226 [2023-02-18 16:32:58,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 16:32:58,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 16:32:58,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 16:32:58,221 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 16:32:58,223 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 16:32:58,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2023-02-18 16:32:59,100 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 16:32:59,271 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 16:32:59,271 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2023-02-18 16:32:59,281 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1882447/c7dcb9ff3c554b5c87f2b6ad39a8fce4/FLAGea1d53f60 [2023-02-18 16:32:59,292 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1882447/c7dcb9ff3c554b5c87f2b6ad39a8fce4 [2023-02-18 16:32:59,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 16:32:59,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 16:32:59,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 16:32:59,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 16:32:59,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 16:32:59,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6726c422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59, skipping insertion in model container [2023-02-18 16:32:59,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 16:32:59,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 16:32:59,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c[597,610] [2023-02-18 16:32:59,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 16:32:59,413 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 16:32:59,421 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c[597,610] [2023-02-18 16:32:59,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 16:32:59,452 INFO L208 MainTranslator]: Completed translation [2023-02-18 16:32:59,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59 WrapperNode [2023-02-18 16:32:59,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 16:32:59,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 16:32:59,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 16:32:59,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 16:32:59,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,471 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2023-02-18 16:32:59,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 16:32:59,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 16:32:59,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 16:32:59,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 16:32:59,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 16:32:59,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 16:32:59,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 16:32:59,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 16:32:59,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (1/1) ... [2023-02-18 16:32:59,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 16:32:59,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:32:59,506 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) [2023-02-18 16:32:59,511 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 [2023-02-18 16:32:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 16:32:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 16:32:59,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 16:32:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 16:32:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 16:32:59,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 16:32:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 16:32:59,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 16:32:59,579 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 16:32:59,580 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 16:32:59,720 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 16:32:59,730 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 16:32:59,730 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 16:32:59,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:32:59 BoogieIcfgContainer [2023-02-18 16:32:59,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 16:32:59,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 16:32:59,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 16:32:59,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 16:32:59,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 04:32:59" (1/3) ... [2023-02-18 16:32:59,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2b2b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 04:32:59, skipping insertion in model container [2023-02-18 16:32:59,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:32:59" (2/3) ... [2023-02-18 16:32:59,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2b2b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 04:32:59, skipping insertion in model container [2023-02-18 16:32:59,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:32:59" (3/3) ... [2023-02-18 16:32:59,756 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound20.c [2023-02-18 16:32:59,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 16:32:59,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 16:32:59,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 16:32:59,803 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74d3f193, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 16:32:59,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 16:32:59,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 16:32:59,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 16:32:59,818 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:32:59,819 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:32:59,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:32:59,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:32:59,823 INFO L85 PathProgramCache]: Analyzing trace with hash 689891435, now seen corresponding path program 1 times [2023-02-18 16:32:59,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:32:59,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002827510] [2023-02-18 16:32:59,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:32:59,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:32:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:32:59,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:32:59,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002827510] [2023-02-18 16:32:59,908 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-18 16:32:59,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442290759] [2023-02-18 16:32:59,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:32:59,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:32:59,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:32:59,911 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) [2023-02-18 16:32:59,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 16:32:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:32:59,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-18 16:32:59,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:32:59,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 16:32:59,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 16:32:59,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442290759] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 16:32:59,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 16:32:59,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 16:32:59,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783358883] [2023-02-18 16:32:59,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 16:32:59,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 16:32:59,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:33:00,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 16:33:00,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 16:33:00,029 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 16:33:00,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:33:00,057 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2023-02-18 16:33:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 16:33:00,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2023-02-18 16:33:00,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:33:00,075 INFO L225 Difference]: With dead ends: 51 [2023-02-18 16:33:00,075 INFO L226 Difference]: Without dead ends: 23 [2023-02-18 16:33:00,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 16:33:00,083 INFO L413 NwaCegarLoop]: 30 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, 30 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 [2023-02-18 16:33:00,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 16:33:00,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-18 16:33:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-18 16:33:00,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 16:33:00,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-18 16:33:00,123 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 19 [2023-02-18 16:33:00,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:33:00,123 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-18 16:33:00,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 16:33:00,123 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-18 16:33:00,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 16:33:00,124 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:33:00,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:33:00,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 16:33:00,329 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,SelfDestructingSolverStorable0 [2023-02-18 16:33:00,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:33:00,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:33:00,331 INFO L85 PathProgramCache]: Analyzing trace with hash 90086127, now seen corresponding path program 1 times [2023-02-18 16:33:00,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:33:00,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429017031] [2023-02-18 16:33:00,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:33:00,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:33:00,348 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 16:33:00,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541149180] [2023-02-18 16:33:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:33:00,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:33:00,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:33:00,350 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) [2023-02-18 16:33:00,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 16:33:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:33:00,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-18 16:33:00,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:33:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 16:33:00,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 16:33:00,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:33:00,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429017031] [2023-02-18 16:33:00,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 16:33:00,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541149180] [2023-02-18 16:33:00,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541149180] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 16:33:00,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 16:33:00,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 16:33:00,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296070550] [2023-02-18 16:33:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 16:33:00,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 16:33:00,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:33:00,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 16:33:00,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 16:33:00,445 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-02-18 16:33:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:33:00,513 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2023-02-18 16:33:00,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 16:33:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 19 [2023-02-18 16:33:00,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:33:00,515 INFO L225 Difference]: With dead ends: 35 [2023-02-18 16:33:00,515 INFO L226 Difference]: Without dead ends: 31 [2023-02-18 16:33:00,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-18 16:33:00,516 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 16:33:00,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 71 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 16:33:00,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-18 16:33:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2023-02-18 16:33:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 16:33:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-02-18 16:33:00,522 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 19 [2023-02-18 16:33:00,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:33:00,523 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-02-18 16:33:00,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-02-18 16:33:00,523 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-02-18 16:33:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-18 16:33:00,534 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:33:00,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:33:00,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 16:33:00,739 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,SelfDestructingSolverStorable1 [2023-02-18 16:33:00,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:33:00,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:33:00,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1522625704, now seen corresponding path program 1 times [2023-02-18 16:33:00,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:33:00,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671346444] [2023-02-18 16:33:00,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:33:00,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:33:00,750 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 16:33:00,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045771807] [2023-02-18 16:33:00,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:33:00,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:33:00,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:33:00,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 16:33:00,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 16:33:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:33:00,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-18 16:33:00,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:33:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 16:33:00,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 16:33:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 16:33:01,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:33:01,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671346444] [2023-02-18 16:33:01,026 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 16:33:01,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045771807] [2023-02-18 16:33:01,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045771807] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 16:33:01,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 16:33:01,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2023-02-18 16:33:01,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678596585] [2023-02-18 16:33:01,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 16:33:01,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 16:33:01,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:33:01,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 16:33:01,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-02-18 16:33:01,028 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 16 states, 14 states have (on average 2.0) internal successors, (28), 15 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 16:33:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:33:01,324 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2023-02-18 16:33:01,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-18 16:33:01,324 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.0) internal successors, (28), 15 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-02-18 16:33:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:33:01,325 INFO L225 Difference]: With dead ends: 44 [2023-02-18 16:33:01,325 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 16:33:01,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-02-18 16:33:01,326 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 16:33:01,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 124 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 16:33:01,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 16:33:01,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2023-02-18 16:33:01,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 16:33:01,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2023-02-18 16:33:01,332 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 28 [2023-02-18 16:33:01,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:33:01,332 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2023-02-18 16:33:01,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.0) internal successors, (28), 15 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 16:33:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2023-02-18 16:33:01,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-18 16:33:01,333 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:33:01,333 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:33:01,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 16:33:01,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:33:01,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:33:01,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:33:01,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1035193378, now seen corresponding path program 1 times [2023-02-18 16:33:01,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:33:01,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330844218] [2023-02-18 16:33:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:33:01,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:33:01,549 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 16:33:01,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802349090] [2023-02-18 16:33:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:33:01,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:33:01,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:33:01,552 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 16:33:01,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 16:33:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:33:01,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-18 16:33:01,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:33:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 16:33:01,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 16:33:02,007 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-18 16:33:02,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:33:02,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330844218] [2023-02-18 16:33:02,007 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 16:33:02,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802349090] [2023-02-18 16:33:02,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802349090] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 16:33:02,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 16:33:02,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 25 [2023-02-18 16:33:02,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490437749] [2023-02-18 16:33:02,022 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 16:33:02,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-18 16:33:02,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:33:02,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-18 16:33:02,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2023-02-18 16:33:02,024 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 25 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 22 states have internal predecessors, (39), 7 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-18 16:33:02,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:33:02,647 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2023-02-18 16:33:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-02-18 16:33:02,648 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 22 states have internal predecessors, (39), 7 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 35 [2023-02-18 16:33:02,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:33:02,648 INFO L225 Difference]: With dead ends: 45 [2023-02-18 16:33:02,648 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 16:33:02,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=316, Invalid=1576, Unknown=0, NotChecked=0, Total=1892 [2023-02-18 16:33:02,650 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 54 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 16:33:02,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 99 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 16:33:02,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 16:33:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 16:33:02,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:33:02,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 16:33:02,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2023-02-18 16:33:02,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:33:02,651 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 16:33:02,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 22 states have internal predecessors, (39), 7 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-18 16:33:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 16:33:02,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 16:33:02,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 16:33:02,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 16:33:02,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:33:02,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 16:33:02,869 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 16:33:02,877 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~X~0#1| 0) (<= |ULTIMATE.start_main_~X~0#1| 20)) [2023-02-18 16:33:02,877 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-02-18 16:33:02,877 INFO L902 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true [2023-02-18 16:33:02,877 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-02-18 16:33:02,878 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse5 (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse17 (* |ULTIMATE.start_main_~Y~0#1| 1)) (.cse11 (* 2 (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse18 (- (* 2 .cse5))) (.cse4 (- |ULTIMATE.start_main_~X~0#1|)) (.cse7 (* 2 |ULTIMATE.start_main_~Y~0#1|)) (.cse8 (- |ULTIMATE.start_main_~v~0#1|))) (let ((.cse0 (= 0 (+ (+ (+ (+ .cse11 .cse18) .cse4) .cse7) .cse8))) (.cse13 (= (+ |ULTIMATE.start_main_~x~0#1| (- 1)) 0)) (.cse15 (= |ULTIMATE.start_main_~yx~0#1| .cse17)) (.cse9 (>= |ULTIMATE.start_main_~X~0#1| 0)) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~X~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~X~0#1| 20)) (.cse14 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~X~0#1| 0))) (.cse12 (+ .cse7 .cse4)) (.cse16 (= |ULTIMATE.start_main_~y~0#1| 0))) (or (let ((.cse3 (- (* 2 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse6 (* 2 |ULTIMATE.start_main_~y~0#1|))) (and .cse0 (or .cse1 (forall ((|ULTIMATE.start_main_~Y~0#1| Int)) (= 0 (+ (let ((.cse2 (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|))) (+ (+ (+ (+ (* 2 .cse2) .cse3) .cse4) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (+ (- (* |ULTIMATE.start_main_~X~0#1| (- 1))) (- (* .cse5 (- 2))) (- (* .cse2 2)) (- (* |ULTIMATE.start_main_~Y~0#1| 2))))) .cse6)))) (= 0 (+ (+ (+ (+ (+ (* 2 |ULTIMATE.start_main_~yx~0#1|) (- (* 2 |ULTIMATE.start_main_~xy~0#1|))) .cse4) .cse7) .cse8) .cse6)) .cse9 .cse10 (= 0 (+ (+ (+ (+ (+ .cse11 .cse3) .cse4) .cse7) .cse8) .cse6)))) (and (= (+ |ULTIMATE.start_main_~v~0#1| (* |ULTIMATE.start_main_~Y~0#1| (- 2))) .cse12) .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse13 (not (<= 1 |ULTIMATE.start_main_~X~0#1|)) (= |ULTIMATE.start_main_~y~0#1| (+ 1 0)) .cse15 .cse9 (not .cse1) (= 0 (+ (+ (+ (+ (* 2 .cse17) .cse18) .cse4) .cse7) .cse8)) (= |ULTIMATE.start_main_~xy~0#1| (* 1 |ULTIMATE.start_main_~y~0#1|)) .cse10) (and .cse14 (= |ULTIMATE.start_main_~x~0#1| 0) (= |ULTIMATE.start_main_~v~0#1| .cse12) .cse16 (= |ULTIMATE.start_main_~yx~0#1| (* |ULTIMATE.start_main_~Y~0#1| 0))))))) [2023-02-18 16:33:02,878 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-02-18 16:33:02,878 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 16:33:02,878 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 21 53) the Hoare annotation is: true [2023-02-18 16:33:02,878 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 45) no Hoare annotation was computed. [2023-02-18 16:33:02,879 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 45) no Hoare annotation was computed. [2023-02-18 16:33:02,879 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 16:33:02,879 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 47) the Hoare annotation is: (let ((.cse6 (* 2 (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse17 (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (- |ULTIMATE.start_main_~X~0#1|)) (.cse9 (* 2 |ULTIMATE.start_main_~Y~0#1|)) (.cse10 (- |ULTIMATE.start_main_~v~0#1|))) (let ((.cse0 (= 0 (+ (+ (+ (+ .cse6 (- (* 2 .cse17))) .cse8) .cse9) .cse10))) (.cse7 (- (* 2 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse4 (+ .cse9 .cse8)) (.cse1 (= (+ |ULTIMATE.start_main_~x~0#1| (- 1)) 0)) (.cse13 (- (* |ULTIMATE.start_main_~X~0#1| (- 1)))) (.cse14 (- (* .cse17 (- 2)))) (.cse11 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse2 (>= |ULTIMATE.start_main_~X~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~y~0#1| 0)) (.cse3 (<= |ULTIMATE.start_main_~X~0#1| 20))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~y~0#1| (+ 1 0)) .cse2 .cse3) (and (= |ULTIMATE.start_main_~x~0#1| 0) .cse2 (= |ULTIMATE.start_main_~v~0#1| .cse4) .cse5 .cse3 (= 0 (+ (+ (+ (+ (+ .cse6 .cse7) .cse8) .cse9) .cse10) .cse11))) (and .cse0 (or (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~X~0#1|) (forall ((|ULTIMATE.start_main_~Y~0#1| Int)) (= 0 (+ (let ((.cse12 (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|))) (+ (+ (+ (+ (* 2 .cse12) .cse7) .cse8) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (+ .cse13 .cse14 (- (* .cse12 2)) (- (* |ULTIMATE.start_main_~Y~0#1| 2))))) .cse11)))) .cse2 .cse3) (and (= (+ |ULTIMATE.start_main_~v~0#1| (* |ULTIMATE.start_main_~Y~0#1| (- 2))) .cse4) .cse1 (let ((.cse15 (+ |ULTIMATE.start_main_~x~0#1| 1))) (or (<= .cse15 |ULTIMATE.start_main_~X~0#1|) (forall ((|ULTIMATE.start_main_~Y~0#1| Int)) (= 0 (+ (let ((.cse16 (* |ULTIMATE.start_main_~Y~0#1| .cse15))) (+ (+ (+ (+ (* 2 .cse16) (- (* 2 (* .cse15 |ULTIMATE.start_main_~y~0#1|)))) .cse8) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (+ .cse13 .cse14 (- (* .cse16 2)) (- (* |ULTIMATE.start_main_~Y~0#1| 2))))) .cse11))))) .cse2 .cse5 .cse3)))) [2023-02-18 16:33:02,879 INFO L899 garLoopResultBuilder]: For program point L32-3(lines 32 47) no Hoare annotation was computed. [2023-02-18 16:33:02,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 16:33:02,880 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse13 (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse20 (- |ULTIMATE.start_main_~v~0#1|)) (.cse24 (* 2 .cse13)) (.cse3 (- (* 2 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse4 (- |ULTIMATE.start_main_~X~0#1|)) (.cse23 (* 2 |ULTIMATE.start_main_~Y~0#1|))) (let ((.cse19 (+ (+ (+ .cse24 .cse3) .cse4) .cse23)) (.cse5 (- (* |ULTIMATE.start_main_~X~0#1| (- 1)))) (.cse7 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~X~0#1|)) (.cse16 (+ (+ (+ (+ (* 2 |ULTIMATE.start_main_~yx~0#1|) (- (* 2 |ULTIMATE.start_main_~xy~0#1|))) .cse4) .cse23) .cse20)) (.cse14 (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse0 (= 0 (+ (+ (+ (+ .cse24 (- (* 2 .cse14))) .cse4) .cse23) .cse20))) (.cse10 (= 0 .cse16)) (.cse17 (+ .cse23 .cse4)) (.cse12 (= (+ |ULTIMATE.start_main_~x~0#1| (- 1)) 0)) (.cse6 (- (* .cse14 (- 2)))) (.cse15 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~X~0#1| 0))) (.cse8 (or (= 0 (+ (+ .cse19 (+ .cse5 (- (* |ULTIMATE.start_main_~xy~0#1| (- 2))) (- (* |ULTIMATE.start_main_~yx~0#1| 2)) (- (* |ULTIMATE.start_main_~Y~0#1| 2)))) .cse7)) .cse1)) (.cse9 (>= |ULTIMATE.start_main_~X~0#1| 0)) (.cse18 (= |ULTIMATE.start_main_~y~0#1| 0)) (.cse11 (<= |ULTIMATE.start_main_~X~0#1| 20))) (or (and .cse0 (or .cse1 (forall ((|ULTIMATE.start_main_~Y~0#1| Int)) (= 0 (+ (let ((.cse2 (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|))) (+ (+ (+ (+ (* 2 .cse2) .cse3) .cse4) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (+ .cse5 .cse6 (- (* .cse2 2)) (- (* |ULTIMATE.start_main_~Y~0#1| 2))))) .cse7)))) .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 (= |ULTIMATE.start_main_~y~0#1| (+ 1 0)) (= |ULTIMATE.start_main_~yx~0#1| .cse13) .cse9 (= |ULTIMATE.start_main_~xy~0#1| .cse14) .cse10 .cse11) (and .cse15 (= 0 (+ .cse16 .cse7)) (= |ULTIMATE.start_main_~x~0#1| 0) .cse9 (= |ULTIMATE.start_main_~v~0#1| .cse17) .cse18 (= |ULTIMATE.start_main_~yx~0#1| (* |ULTIMATE.start_main_~Y~0#1| 0)) .cse10 .cse11 (= 0 (+ (+ .cse19 .cse20) .cse7))) (and (= (+ |ULTIMATE.start_main_~v~0#1| (* |ULTIMATE.start_main_~Y~0#1| (- 2))) .cse17) .cse12 (let ((.cse21 (+ |ULTIMATE.start_main_~x~0#1| 1))) (or (<= .cse21 |ULTIMATE.start_main_~X~0#1|) (forall ((|ULTIMATE.start_main_~Y~0#1| Int)) (= 0 (+ (let ((.cse22 (* |ULTIMATE.start_main_~Y~0#1| .cse21))) (+ (+ (+ (+ (* 2 .cse22) (- (* 2 (* .cse21 |ULTIMATE.start_main_~y~0#1|)))) .cse4) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (+ .cse5 .cse6 (- (* .cse22 2)) (- (* |ULTIMATE.start_main_~Y~0#1| 2))))) .cse7))))) .cse15 (= |ULTIMATE.start_main_~yx~0#1| (* |ULTIMATE.start_main_~Y~0#1| 1)) .cse8 .cse9 .cse18 .cse11)))))) [2023-02-18 16:33:02,880 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 32 47) no Hoare annotation was computed. [2023-02-18 16:33:02,880 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-02-18 16:33:02,880 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2023-02-18 16:33:02,880 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 12) no Hoare annotation was computed. [2023-02-18 16:33:02,880 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 10 12) no Hoare annotation was computed. [2023-02-18 16:33:02,880 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 16) no Hoare annotation was computed. [2023-02-18 16:33:02,881 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 17) no Hoare annotation was computed. [2023-02-18 16:33:02,881 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 13 19) no Hoare annotation was computed. [2023-02-18 16:33:02,881 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 13 19) no Hoare annotation was computed. [2023-02-18 16:33:02,881 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 13 19) the Hoare annotation is: true [2023-02-18 16:33:02,881 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2023-02-18 16:33:02,883 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-18 16:33:02,885 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 16:33:02,904 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,905 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,905 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,905 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,906 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,906 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,906 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,906 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,911 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,912 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,913 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 04:33:02 BoogieIcfgContainer [2023-02-18 16:33:02,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 16:33:02,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 16:33:02,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 16:33:02,915 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 16:33:02,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:32:59" (3/4) ... [2023-02-18 16:33:02,919 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 16:33:02,923 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-18 16:33:02,923 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-18 16:33:02,926 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-18 16:33:02,927 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 16:33:02,927 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 16:33:02,927 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 16:33:02,951 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 16:33:02,951 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 16:33:02,952 INFO L158 Benchmark]: Toolchain (without parser) took 3656.98ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 116.0MB in the beginning and 109.9MB in the end (delta: 6.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2023-02-18 16:33:02,952 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 16:33:02,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.77ms. Allocated memory is still 144.7MB. Free memory was 115.7MB in the beginning and 104.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 16:33:02,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.03ms. Allocated memory is still 144.7MB. Free memory was 104.9MB in the beginning and 103.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 16:33:02,953 INFO L158 Benchmark]: Boogie Preprocessor took 11.47ms. Allocated memory is still 144.7MB. Free memory was 103.2MB in the beginning and 102.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 16:33:02,953 INFO L158 Benchmark]: RCFGBuilder took 248.57ms. Allocated memory is still 144.7MB. Free memory was 102.1MB in the beginning and 91.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 16:33:02,953 INFO L158 Benchmark]: TraceAbstraction took 3170.67ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 91.0MB in the beginning and 113.0MB in the end (delta: -22.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-02-18 16:33:02,954 INFO L158 Benchmark]: Witness Printer took 36.76ms. Allocated memory is still 174.1MB. Free memory was 113.0MB in the beginning and 109.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-18 16:33:02,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.77ms. Allocated memory is still 144.7MB. Free memory was 115.7MB in the beginning and 104.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.03ms. Allocated memory is still 144.7MB. Free memory was 104.9MB in the beginning and 103.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.47ms. Allocated memory is still 144.7MB. Free memory was 103.2MB in the beginning and 102.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 248.57ms. Allocated memory is still 144.7MB. Free memory was 102.1MB in the beginning and 91.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3170.67ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 91.0MB in the beginning and 113.0MB in the end (delta: -22.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 36.76ms. Allocated memory is still 174.1MB. Free memory was 113.0MB in the beginning and 109.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 324 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 249 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 729 IncrementalHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 75 mSDtfsCounter, 729 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 112 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=3, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 19 PreInvPairs, 33 NumberOfFragments, 1016 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 3 QuantifiedInterpolants, 1130 SizeOfPredicates, 22 NumberOfNonLiveVariables, 326 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 41/54 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant [2023-02-18 16:33:02,970 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,971 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,971 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,971 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,971 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,971 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,971 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,971 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,975 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,976 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,976 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,976 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,976 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,976 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,977 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] [2023-02-18 16:33:02,977 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~Y~0#1,QUANTIFIED] Derived loop invariant: ((((((0 == 2 * (Y * x) + -(2 * (X * y)) + -X + 2 * Y + -v && x + -1 == 0) && y == 1 + 0) && X >= 0) && X <= 20) || (((((x == 0 && X >= 0) && v == 2 * Y + -X) && y == 0) && X <= 20) && 0 == 2 * (Y * x) + -(2 * (x * y)) + -X + 2 * Y + -v + 2 * y)) || (((0 == 2 * (Y * x) + -(2 * (X * y)) + -X + 2 * Y + -v && (x <= X || (forall ULTIMATE.start_main_~Y~0#1 : int :: 0 == 2 * (ULTIMATE.start_main_~Y~0#1 * x) + -(2 * (x * y)) + -X + 2 * ULTIMATE.start_main_~Y~0#1 + (-(X * -1) + -(X * y * -2) + -(ULTIMATE.start_main_~Y~0#1 * x * 2) + -(ULTIMATE.start_main_~Y~0#1 * 2)) + 2 * y))) && X >= 0) && X <= 20)) || (((((v + Y * -2 == 2 * Y + -X && x + -1 == 0) && (x + 1 <= X || (forall ULTIMATE.start_main_~Y~0#1 : int :: 0 == 2 * (ULTIMATE.start_main_~Y~0#1 * (x + 1)) + -(2 * ((x + 1) * y)) + -X + 2 * ULTIMATE.start_main_~Y~0#1 + (-(X * -1) + -(X * y * -2) + -(ULTIMATE.start_main_~Y~0#1 * (x + 1) * 2) + -(ULTIMATE.start_main_~Y~0#1 * 2)) + 2 * y))) && X >= 0) && y == 0) && X <= 20) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-18 16:33:03,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE