./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c 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/prod4br-ll_valuebound1.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 c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 03:48:52,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 03:48:52,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 03:48:52,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 03:48:52,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 03:48:52,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 03:48:52,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 03:48:52,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 03:48:52,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 03:48:52,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 03:48:52,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 03:48:52,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 03:48:52,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 03:48:52,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 03:48:52,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 03:48:52,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 03:48:52,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 03:48:52,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 03:48:52,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 03:48:52,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 03:48:52,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 03:48:52,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 03:48:52,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 03:48:52,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 03:48:52,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 03:48:52,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 03:48:52,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 03:48:52,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 03:48:52,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 03:48:52,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 03:48:52,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 03:48:52,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 03:48:52,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 03:48:52,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 03:48:52,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 03:48:52,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 03:48:52,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 03:48:52,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 03:48:52,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 03:48:52,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 03:48:52,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 03:48:52,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 03:48:52,552 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 03:48:52,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 03:48:52,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 03:48:52,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 03:48:52,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 03:48:52,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 03:48:52,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 03:48:52,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 03:48:52,554 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 03:48:52,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 03:48:52,555 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 03:48:52,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 03:48:52,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 03:48:52,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 03:48:52,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 03:48:52,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 03:48:52,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 03:48:52,557 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 03:48:52,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 03:48:52,557 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 03:48:52,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 03:48:52,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 03:48:52,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 03:48:52,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 03:48:52,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 03:48:52,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 03:48:52,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 03:48:52,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 03:48:52,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 03:48:52,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 03:48:52,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 03:48:52,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 03:48:52,559 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 03:48:52,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 03:48:52,560 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 03:48:52,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa [2023-02-18 03:48:52,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 03:48:52,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 03:48:52,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 03:48:52,823 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 03:48:52,823 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 03:48:52,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2023-02-18 03:48:53,960 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 03:48:54,101 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 03:48:54,102 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2023-02-18 03:48:54,109 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf71c199/b45d33b929814df1a3d3f0db8cd0f614/FLAG32234d2ef [2023-02-18 03:48:54,119 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf71c199/b45d33b929814df1a3d3f0db8cd0f614 [2023-02-18 03:48:54,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 03:48:54,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 03:48:54,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 03:48:54,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 03:48:54,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 03:48:54,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d413fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54, skipping insertion in model container [2023-02-18 03:48:54,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 03:48:54,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 03:48:54,249 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/prod4br-ll_valuebound1.c[524,537] [2023-02-18 03:48:54,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 03:48:54,271 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 03:48:54,280 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/prod4br-ll_valuebound1.c[524,537] [2023-02-18 03:48:54,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 03:48:54,297 INFO L208 MainTranslator]: Completed translation [2023-02-18 03:48:54,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54 WrapperNode [2023-02-18 03:48:54,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 03:48:54,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 03:48:54,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 03:48:54,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 03:48:54,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,324 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-02-18 03:48:54,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 03:48:54,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 03:48:54,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 03:48:54,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 03:48:54,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,340 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 03:48:54,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 03:48:54,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 03:48:54,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 03:48:54,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (1/1) ... [2023-02-18 03:48:54,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 03:48:54,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:48:54,370 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 03:48:54,389 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 03:48:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 03:48:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 03:48:54,404 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 03:48:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 03:48:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 03:48:54,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 03:48:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 03:48:54,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 03:48:54,452 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 03:48:54,454 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 03:48:54,571 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 03:48:54,582 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 03:48:54,583 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 03:48:54,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:48:54 BoogieIcfgContainer [2023-02-18 03:48:54,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 03:48:54,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 03:48:54,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 03:48:54,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 03:48:54,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 03:48:54" (1/3) ... [2023-02-18 03:48:54,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40140387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 03:48:54, skipping insertion in model container [2023-02-18 03:48:54,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:48:54" (2/3) ... [2023-02-18 03:48:54,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40140387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 03:48:54, skipping insertion in model container [2023-02-18 03:48:54,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:48:54" (3/3) ... [2023-02-18 03:48:54,591 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound1.c [2023-02-18 03:48:54,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 03:48:54,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 03:48:54,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 03:48:54,650 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;@45de9892, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 03:48:54,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 03:48:54,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 03:48:54,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 03:48:54,659 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:48:54,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 03:48:54,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:48:54,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:48:54,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1472905330, now seen corresponding path program 1 times [2023-02-18 03:48:54,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:48:54,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142228119] [2023-02-18 03:48:54,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:54,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:48:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:48:54,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:48:54,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142228119] [2023-02-18 03:48:54,832 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-18 03:48:54,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153617339] [2023-02-18 03:48:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:54,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:48:54,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:48:54,841 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 03:48:54,853 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 03:48:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:48:54,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-18 03:48:54,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:48:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-18 03:48:54,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 03:48:54,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153617339] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 03:48:54,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 03:48:54,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 03:48:54,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557592552] [2023-02-18 03:48:54,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 03:48:54,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 03:48:54,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:48:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 03:48:55,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 03:48:55,030 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 03:48:55,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:48:55,049 INFO L93 Difference]: Finished difference Result 55 states and 82 transitions. [2023-02-18 03:48:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 03:48:55,051 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-02-18 03:48:55,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:48:55,070 INFO L225 Difference]: With dead ends: 55 [2023-02-18 03:48:55,080 INFO L226 Difference]: Without dead ends: 25 [2023-02-18 03:48:55,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 03:48:55,087 INFO L413 NwaCegarLoop]: 36 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, 36 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 03:48:55,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 03:48:55,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-18 03:48:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-18 03:48:55,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 03:48:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-02-18 03:48:55,131 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 24 [2023-02-18 03:48:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:48:55,132 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-02-18 03:48:55,132 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 03:48:55,133 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-02-18 03:48:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 03:48:55,135 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:48:55,136 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 03:48:55,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 03:48:55,344 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 03:48:55,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:48:55,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:48:55,346 INFO L85 PathProgramCache]: Analyzing trace with hash 324198000, now seen corresponding path program 1 times [2023-02-18 03:48:55,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:48:55,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449398512] [2023-02-18 03:48:55,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:55,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:48:55,372 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:48:55,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482153665] [2023-02-18 03:48:55,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:55,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:48:55,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:48:55,377 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 03:48:55,377 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 03:48:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:48:55,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-18 03:48:55,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:48:55,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 03:48:55,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 03:48:55,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:48:55,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449398512] [2023-02-18 03:48:55,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:48:55,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482153665] [2023-02-18 03:48:55,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482153665] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 03:48:55,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 03:48:55,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-02-18 03:48:55,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761696691] [2023-02-18 03:48:55,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 03:48:55,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 03:48:55,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:48:55,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 03:48:55,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-02-18 03:48:55,574 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 03:48:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:48:55,754 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2023-02-18 03:48:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 03:48:55,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 24 [2023-02-18 03:48:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:48:55,756 INFO L225 Difference]: With dead ends: 51 [2023-02-18 03:48:55,757 INFO L226 Difference]: Without dead ends: 37 [2023-02-18 03:48:55,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-02-18 03:48:55,759 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 26 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 03:48:55,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 90 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 03:48:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-18 03:48:55,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2023-02-18 03:48:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 03:48:55,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-02-18 03:48:55,775 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 24 [2023-02-18 03:48:55,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:48:55,776 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-02-18 03:48:55,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 03:48:55,777 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-02-18 03:48:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-18 03:48:55,778 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:48:55,778 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 03:48:55,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 03:48:55,983 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 03:48:55,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:48:55,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:48:55,984 INFO L85 PathProgramCache]: Analyzing trace with hash 693549193, now seen corresponding path program 1 times [2023-02-18 03:48:55,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:48:55,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609609335] [2023-02-18 03:48:55,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:55,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:48:56,000 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:48:56,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304166900] [2023-02-18 03:48:56,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:56,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:48:56,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:48:56,003 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 03:48:56,006 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 03:48:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:48:56,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 03:48:56,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:48:56,261 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 03:48:56,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 03:48:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 03:48:56,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:48:56,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609609335] [2023-02-18 03:48:56,405 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:48:56,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304166900] [2023-02-18 03:48:56,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304166900] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 03:48:56,405 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 03:48:56,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 16 [2023-02-18 03:48:56,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809309292] [2023-02-18 03:48:56,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 03:48:56,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 03:48:56,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:48:56,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 03:48:56,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-02-18 03:48:56,408 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 03:48:56,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:48:56,687 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2023-02-18 03:48:56,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 03:48:56,688 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-02-18 03:48:56,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:48:56,692 INFO L225 Difference]: With dead ends: 45 [2023-02-18 03:48:56,692 INFO L226 Difference]: Without dead ends: 41 [2023-02-18 03:48:56,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2023-02-18 03:48:56,695 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 03:48:56,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 115 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 03:48:56,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-18 03:48:56,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2023-02-18 03:48:56,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 03:48:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2023-02-18 03:48:56,716 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 30 [2023-02-18 03:48:56,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:48:56,721 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2023-02-18 03:48:56,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 03:48:56,722 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2023-02-18 03:48:56,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 03:48:56,723 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:48:56,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 03:48:56,733 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 03:48:56,929 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 03:48:56,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:48:56,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:48:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1144244799, now seen corresponding path program 1 times [2023-02-18 03:48:56,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:48:56,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407558442] [2023-02-18 03:48:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:56,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:48:56,942 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:48:56,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215133146] [2023-02-18 03:48:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:56,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:48:56,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:48:56,946 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 03:48:56,949 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 03:48:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:48:56,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 03:48:56,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:48:57,031 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 03:48:57,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 03:48:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 03:48:57,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:48:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407558442] [2023-02-18 03:48:57,104 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:48:57,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215133146] [2023-02-18 03:48:57,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215133146] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 03:48:57,105 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 03:48:57,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-02-18 03:48:57,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415225019] [2023-02-18 03:48:57,105 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 03:48:57,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 03:48:57,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:48:57,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 03:48:57,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-02-18 03:48:57,107 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-18 03:48:57,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:48:57,182 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2023-02-18 03:48:57,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 03:48:57,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 34 [2023-02-18 03:48:57,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:48:57,184 INFO L225 Difference]: With dead ends: 56 [2023-02-18 03:48:57,184 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 03:48:57,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-02-18 03:48:57,185 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 03:48:57,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 111 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 03:48:57,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 03:48:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-02-18 03:48:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 03:48:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-02-18 03:48:57,192 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 34 [2023-02-18 03:48:57,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:48:57,193 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-02-18 03:48:57,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-18 03:48:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-02-18 03:48:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 03:48:57,194 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:48:57,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 03:48:57,201 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 03:48:57,399 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 03:48:57,400 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:48:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:48:57,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1201503101, now seen corresponding path program 1 times [2023-02-18 03:48:57,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:48:57,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193982844] [2023-02-18 03:48:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:57,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:48:57,413 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:48:57,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038993701] [2023-02-18 03:48:57,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:48:57,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:48:57,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:48:57,430 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 03:48:57,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 03:48:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:48:57,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 40 conjunts are in the unsatisfiable core [2023-02-18 03:48:57,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:48:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 03:48:57,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 03:48:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 03:48:57,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:48:57,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193982844] [2023-02-18 03:48:57,729 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:48:57,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038993701] [2023-02-18 03:48:57,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038993701] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 03:48:57,730 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 03:48:57,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 19 [2023-02-18 03:48:57,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842155130] [2023-02-18 03:48:57,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 03:48:57,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-18 03:48:57,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:48:57,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-18 03:48:57,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-02-18 03:48:57,732 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 14 states have internal predecessors, (34), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-18 03:48:57,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:48:57,877 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2023-02-18 03:48:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 03:48:57,878 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 14 states have internal predecessors, (34), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 34 [2023-02-18 03:48:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:48:57,879 INFO L225 Difference]: With dead ends: 52 [2023-02-18 03:48:57,879 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 03:48:57,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2023-02-18 03:48:57,880 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 03:48:57,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 74 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 03:48:57,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 03:48:57,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 03:48:57,881 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 03:48:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 03:48:57,882 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2023-02-18 03:48:57,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:48:57,882 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 03:48:57,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 14 states have internal predecessors, (34), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-18 03:48:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 03:48:57,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 03:48:57,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 03:48:57,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 03:48:58,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:48:58,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 03:48:58,102 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 03:48:58,103 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2023-02-18 03:48:58,103 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-02-18 03:48:58,103 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 54) no Hoare annotation was computed. [2023-02-18 03:48:58,103 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 03:48:58,103 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 60) the Hoare annotation is: true [2023-02-18 03:48:58,103 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 54) no Hoare annotation was computed. [2023-02-18 03:48:58,104 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 55) the Hoare annotation is: (let ((.cse1 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse4 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse2 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse5 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse7 (<= |ULTIMATE.start_main_~x~0#1| 1)) (.cse8 (<= |ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (>= |ULTIMATE.start_main_~x~0#1| 0))) (let ((.cse0 (or (and .cse2 .cse5 .cse7 .cse8 .cse9) (and .cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse5 (= |ULTIMATE.start_main_~q~0#1| 0) .cse7 .cse8 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse9))) (.cse3 (or (and (<= |ULTIMATE.start_main_~y~0#1| 0) (exists ((|ULTIMATE.start_main_~a~0#1| Int) (|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (= (+ (* (* |ULTIMATE.start_main_~a~0#1| 0) |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~q~0#1|) .cse1)))) (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (exists ((|ULTIMATE.start_main_~b~0#1| Int)) (and (= (+ (* (* |ULTIMATE.start_main_~b~0#1| 0) |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~q~0#1|) .cse1) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)))))))) (or (and .cse0 (>= |ULTIMATE.start_main_~p~0#1| 1) (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (= (+ (* |ULTIMATE.start_main_~p~0#1| (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) |ULTIMATE.start_main_~q~0#1|) .cse1))) .cse2 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) .cse3) (let ((.cse10 (+ (* (- 1) |ULTIMATE.start_main_~p~0#1|) (* (- 1) |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~q~0#1| (* (- 1) |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~p~0#1|))) (.cse6 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse4 .cse0 (<= |ULTIMATE.start_main_~a~0#1| 1) .cse2 .cse5 (= |ULTIMATE.start_main_~x~0#1| .cse6) .cse7 (>= |ULTIMATE.start_main_~a~0#1| 0) .cse8 .cse9 (>= .cse10 0) .cse3 (not (= .cse6 0)) (= (+ (- 1) |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) (= .cse1 (+ .cse10 (* (* |ULTIMATE.start_main_~y~0#1| .cse6) |ULTIMATE.start_main_~p~0#1|)))))))) [2023-02-18 03:48:58,104 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 03:48:58,104 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 03:48:58,104 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 1) (>= |ULTIMATE.start_main_~x~0#1| 0)) [2023-02-18 03:48:58,105 INFO L895 garLoopResultBuilder]: At program point L26-1(line 26) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~y~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= |ULTIMATE.start_main_~y~0#1| 1) (>= |ULTIMATE.start_main_~x~0#1| 0)) [2023-02-18 03:48:58,105 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (let ((.cse1 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse4 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse2 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse5 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse7 (<= |ULTIMATE.start_main_~x~0#1| 1)) (.cse8 (<= |ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (>= |ULTIMATE.start_main_~x~0#1| 0))) (let ((.cse0 (or (and .cse2 .cse5 .cse7 .cse8 .cse9) (and .cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse5 (= |ULTIMATE.start_main_~q~0#1| 0) .cse7 .cse8 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse9))) (.cse3 (or (and (<= |ULTIMATE.start_main_~y~0#1| 0) (exists ((|ULTIMATE.start_main_~a~0#1| Int) (|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (= (+ (* (* |ULTIMATE.start_main_~a~0#1| 0) |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~q~0#1|) .cse1)))) (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (exists ((|ULTIMATE.start_main_~b~0#1| Int)) (and (= (+ (* (* |ULTIMATE.start_main_~b~0#1| 0) |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~q~0#1|) .cse1) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)))))))) (or (and .cse0 (>= |ULTIMATE.start_main_~p~0#1| 1) (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (= (+ (* |ULTIMATE.start_main_~p~0#1| (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) |ULTIMATE.start_main_~q~0#1|) .cse1))) .cse2 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) .cse3) (let ((.cse10 (+ (* (- 1) |ULTIMATE.start_main_~p~0#1|) (* (- 1) |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~q~0#1| (* (- 1) |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~p~0#1|))) (.cse6 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse4 .cse0 (<= |ULTIMATE.start_main_~a~0#1| 1) .cse2 .cse5 (= |ULTIMATE.start_main_~x~0#1| .cse6) .cse7 (>= |ULTIMATE.start_main_~a~0#1| 0) .cse8 .cse9 (>= .cse10 0) .cse3 (not (= .cse6 0)) (= (+ (- 1) |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) (= .cse1 (+ .cse10 (* (* |ULTIMATE.start_main_~y~0#1| .cse6) |ULTIMATE.start_main_~p~0#1|)))))))) [2023-02-18 03:48:58,105 INFO L902 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: true [2023-02-18 03:48:58,105 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-02-18 03:48:58,105 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 54) no Hoare annotation was computed. [2023-02-18 03:48:58,106 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 34 55) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse1 (<= |ULTIMATE.start_main_~a~0#1| 1)) (.cse4 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse5 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse6 (<= |ULTIMATE.start_main_~x~0#1| 1)) (.cse7 (>= |ULTIMATE.start_main_~a~0#1| 0)) (.cse8 (<= |ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse3 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (or (let ((.cse2 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (and (>= |ULTIMATE.start_main_~q~0#1| 0) .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (>= |ULTIMATE.start_main_~p~0#1| 1) (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse2) |ULTIMATE.start_main_~q~0#1|) .cse3))) .cse4 .cse5 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse2) |ULTIMATE.start_main_~q~0#1|) .cse3) .cse6 .cse7 .cse8 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse9)) (let ((.cse11 (+ (* (- 1) |ULTIMATE.start_main_~p~0#1|) (* (- 1) |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~q~0#1| (* (- 1) |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~p~0#1|))) (.cse10 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse0 (or (and .cse4 .cse5 .cse6 .cse8 .cse9) (and .cse4 .cse5 .cse6 .cse8 .cse9 (or (= |ULTIMATE.start_main_~q~0#1| .cse3) (and (not (= |ULTIMATE.start_main_~b~0#1| 0)) (not (= |ULTIMATE.start_main_~a~0#1| 0)))))) .cse1 .cse4 .cse5 (= |ULTIMATE.start_main_~x~0#1| .cse10) .cse6 .cse7 .cse8 .cse9 (>= .cse11 0) (not (= .cse10 0)) (= (+ (- 1) |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) (= .cse3 (+ .cse11 (* (* |ULTIMATE.start_main_~y~0#1| .cse10) |ULTIMATE.start_main_~p~0#1|))))))) [2023-02-18 03:48:58,106 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse1 (<= |ULTIMATE.start_main_~a~0#1| 1)) (.cse4 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse5 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse6 (<= |ULTIMATE.start_main_~x~0#1| 1)) (.cse7 (>= |ULTIMATE.start_main_~a~0#1| 0)) (.cse8 (<= |ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse3 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (or (let ((.cse2 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (and (>= |ULTIMATE.start_main_~q~0#1| 0) .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (>= |ULTIMATE.start_main_~p~0#1| 1) (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse2) |ULTIMATE.start_main_~q~0#1|) .cse3))) .cse4 .cse5 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse2) |ULTIMATE.start_main_~q~0#1|) .cse3) .cse6 .cse7 .cse8 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse9)) (let ((.cse11 (+ (* (- 1) |ULTIMATE.start_main_~p~0#1|) (* (- 1) |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~q~0#1| (* (- 1) |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~p~0#1|))) (.cse10 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse0 (or (and .cse4 .cse5 .cse6 .cse8 .cse9) (and .cse4 .cse5 .cse6 .cse8 .cse9 (or (= |ULTIMATE.start_main_~q~0#1| .cse3) (and (not (= |ULTIMATE.start_main_~b~0#1| 0)) (not (= |ULTIMATE.start_main_~a~0#1| 0)))))) .cse1 .cse4 .cse5 (= |ULTIMATE.start_main_~x~0#1| .cse10) .cse6 .cse7 .cse8 .cse9 (>= .cse11 0) (not (= .cse10 0)) (= (+ (- 1) |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) (= .cse3 (+ .cse11 (* (* |ULTIMATE.start_main_~y~0#1| .cse10) |ULTIMATE.start_main_~p~0#1|))))))) [2023-02-18 03:48:58,106 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 34 55) no Hoare annotation was computed. [2023-02-18 03:48:58,106 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-02-18 03:48:58,107 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-02-18 03:48:58,107 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2023-02-18 03:48:58,107 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-02-18 03:48:58,107 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2023-02-18 03:48:58,107 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-02-18 03:48:58,107 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-02-18 03:48:58,107 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-02-18 03:48:58,108 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-02-18 03:48:58,108 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-02-18 03:48:58,111 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-02-18 03:48:58,112 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 03:48:58,120 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:48:58,121 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:48:58,129 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:48:58,129 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:48:58,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 03:48:58 BoogieIcfgContainer [2023-02-18 03:48:58,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 03:48:58,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 03:48:58,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 03:48:58,140 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 03:48:58,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:48:54" (3/4) ... [2023-02-18 03:48:58,143 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 03:48:58,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-18 03:48:58,149 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-18 03:48:58,153 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-18 03:48:58,153 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 03:48:58,153 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 03:48:58,153 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 03:48:58,173 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((q >= 0 && p == 1) && a <= 1) && b == y) && p >= 1) && (\exists ULTIMATE.start_main_~p~0#1 : int :: ULTIMATE.start_main_~p~0#1 >= 1 && ULTIMATE.start_main_~p~0#1 * (a * b) + q == x * y)) && y >= 1) && y >= 0) && y <= b) && q == 0) && p * (a * b) + q == x * y) && x <= 1) && a >= 0) && y <= 1) && a == x) && x >= 0) || (((((((((((((p == 1 && (((((y >= 1 && y >= 0) && x <= 1) && y <= 1) && x >= 0) || (((((y >= 1 && y >= 0) && x <= 1) && y <= 1) && x >= 0) && (q == x * y || (!(b == 0) && !(a == 0)))))) && a <= 1) && y >= 1) && y >= 0) && x == a + 1) && x <= 1) && a >= 0) && y <= 1) && x >= 0) && -1 * p + -1 * a * p + q + -1 * b * p >= 0) && !(a + 1 == 0)) && -1 + y == b) && x * y == -1 * p + -1 * a * p + q + -1 * b * p + y * (a + 1) * p) [2023-02-18 03:48:58,185 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 03:48:58,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 03:48:58,186 INFO L158 Benchmark]: Toolchain (without parser) took 4063.17ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 74.5MB in the beginning and 105.9MB in the end (delta: -31.4MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-02-18 03:48:58,186 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 03:48:58,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.06ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 63.5MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 03:48:58,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.08ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 62.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 03:48:58,187 INFO L158 Benchmark]: Boogie Preprocessor took 16.97ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 60.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 03:48:58,188 INFO L158 Benchmark]: RCFGBuilder took 241.41ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 49.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 03:48:58,188 INFO L158 Benchmark]: TraceAbstraction took 3553.49ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 48.9MB in the beginning and 107.9MB in the end (delta: -59.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 03:48:58,188 INFO L158 Benchmark]: Witness Printer took 45.62ms. Allocated memory is still 148.9MB. Free memory was 107.9MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 03:48:58,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.06ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 63.5MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.08ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 62.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.97ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 60.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 241.41ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 49.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3553.49ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 48.9MB in the beginning and 107.9MB in the end (delta: -59.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.62ms. Allocated memory is still 148.9MB. Free memory was 107.9MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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_~p~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~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: 14]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 426 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 320 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 679 IncrementalHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 106 mSDtfsCounter, 679 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 187 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 31 PreInvPairs, 42 NumberOfFragments, 988 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 236 ConstructedInterpolants, 2 QuantifiedInterpolants, 1299 SizeOfPredicates, 25 NumberOfNonLiveVariables, 433 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 98/116 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant [2023-02-18 03:48:58,198 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:48:58,198 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:48:58,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:48:58,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] Derived loop invariant: (((((((((((((((q >= 0 && p == 1) && a <= 1) && b == y) && p >= 1) && (\exists ULTIMATE.start_main_~p~0#1 : int :: ULTIMATE.start_main_~p~0#1 >= 1 && ULTIMATE.start_main_~p~0#1 * (a * b) + q == x * y)) && y >= 1) && y >= 0) && y <= b) && q == 0) && p * (a * b) + q == x * y) && x <= 1) && a >= 0) && y <= 1) && a == x) && x >= 0) || (((((((((((((p == 1 && (((((y >= 1 && y >= 0) && x <= 1) && y <= 1) && x >= 0) || (((((y >= 1 && y >= 0) && x <= 1) && y <= 1) && x >= 0) && (q == x * y || (!(b == 0) && !(a == 0)))))) && a <= 1) && y >= 1) && y >= 0) && x == a + 1) && x <= 1) && a >= 0) && y <= 1) && x >= 0) && -1 * p + -1 * a * p + q + -1 * b * p >= 0) && !(a + 1 == 0)) && -1 + y == b) && x * y == -1 * p + -1 * a * p + q + -1 * b * p + y * (a + 1) * p) RESULT: Ultimate proved your program to be correct! [2023-02-18 03:48:58,211 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