./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound2.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_valuebound2.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 deafb53b6c5560bead535ea0c1ac7bb85be5c959b9a13b21177e05987440264a --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 03:49:57,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 03:49:57,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 03:49:57,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 03:49:57,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 03:49:57,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 03:49:57,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 03:49:57,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 03:49:57,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 03:49:57,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 03:49:57,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 03:49:57,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 03:49:57,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 03:49:57,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 03:49:57,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 03:49:57,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 03:49:57,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 03:49:57,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 03:49:57,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 03:49:57,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 03:49:57,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 03:49:57,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 03:49:57,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 03:49:57,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 03:49:57,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 03:49:57,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 03:49:57,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 03:49:57,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 03:49:57,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 03:49:57,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 03:49:57,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 03:49:57,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 03:49:57,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 03:49:57,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 03:49:57,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 03:49:57,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 03:49:57,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 03:49:57,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 03:49:57,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 03:49:57,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 03:49:57,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 03:49:57,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 03:49:57,849 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 03:49:57,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 03:49:57,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 03:49:57,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 03:49:57,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 03:49:57,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 03:49:57,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 03:49:57,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 03:49:57,852 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 03:49:57,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 03:49:57,852 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 03:49:57,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 03:49:57,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 03:49:57,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 03:49:57,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 03:49:57,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 03:49:57,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 03:49:57,853 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 03:49:57,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 03:49:57,854 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 03:49:57,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 03:49:57,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 03:49:57,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 03:49:57,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 03:49:57,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 03:49:57,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 03:49:57,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 03:49:57,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 03:49:57,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 03:49:57,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 03:49:57,856 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 03:49:57,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 03:49:57,856 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 03:49:57,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 03:49:57,857 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 03:49:57,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> deafb53b6c5560bead535ea0c1ac7bb85be5c959b9a13b21177e05987440264a [2023-02-18 03:49:58,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 03:49:58,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 03:49:58,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 03:49:58,104 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 03:49:58,104 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 03:49:58,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound2.c [2023-02-18 03:49:59,130 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 03:49:59,303 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 03:49:59,304 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound2.c [2023-02-18 03:49:59,309 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0b9cc6c/b0620a8967764dd58d57690bc0d34ce5/FLAG7628f5dd5 [2023-02-18 03:49:59,319 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0b9cc6c/b0620a8967764dd58d57690bc0d34ce5 [2023-02-18 03:49:59,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 03:49:59,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 03:49:59,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 03:49:59,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 03:49:59,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 03:49:59,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af30f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59, skipping insertion in model container [2023-02-18 03:49:59,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 03:49:59,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 03:49:59,461 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_valuebound2.c[524,537] [2023-02-18 03:49:59,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 03:49:59,484 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 03:49:59,492 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_valuebound2.c[524,537] [2023-02-18 03:49:59,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 03:49:59,509 INFO L208 MainTranslator]: Completed translation [2023-02-18 03:49:59,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59 WrapperNode [2023-02-18 03:49:59,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 03:49:59,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 03:49:59,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 03:49:59,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 03:49:59,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,536 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-02-18 03:49:59,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 03:49:59,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 03:49:59,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 03:49:59,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 03:49:59,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 03:49:59,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 03:49:59,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 03:49:59,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 03:49:59,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (1/1) ... [2023-02-18 03:49:59,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 03:49:59,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:49:59,592 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 03:49:59,597 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 03:49:59,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 03:49:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 03:49:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 03:49:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 03:49:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 03:49:59,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 03:49:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 03:49:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 03:49:59,673 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 03:49:59,675 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 03:49:59,802 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 03:49:59,808 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 03:49:59,808 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 03:49:59,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:49:59 BoogieIcfgContainer [2023-02-18 03:49:59,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 03:49:59,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 03:49:59,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 03:49:59,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 03:49:59,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 03:49:59" (1/3) ... [2023-02-18 03:49:59,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d48b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 03:49:59, skipping insertion in model container [2023-02-18 03:49:59,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:49:59" (2/3) ... [2023-02-18 03:49:59,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d48b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 03:49:59, skipping insertion in model container [2023-02-18 03:49:59,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:49:59" (3/3) ... [2023-02-18 03:49:59,817 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound2.c [2023-02-18 03:49:59,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 03:49:59,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 03:49:59,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 03:49:59,901 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;@716bcc1e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 03:49:59,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 03:49:59,907 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 03:49:59,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 03:49:59,914 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:49:59,914 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 03:49:59,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:49:59,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:49:59,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1472905330, now seen corresponding path program 1 times [2023-02-18 03:49:59,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:49:59,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075292979] [2023-02-18 03:49:59,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:49:59,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:50:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:50:00,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:50:00,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075292979] [2023-02-18 03:50:00,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-18 03:50:00,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457715615] [2023-02-18 03:50:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:00,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:50:00,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:50:00,028 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 03:50:00,031 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 03:50:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:50:00,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-18 03:50:00,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:50:00,114 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 03:50:00,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 03:50:00,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457715615] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 03:50:00,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 03:50:00,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 03:50:00,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028938558] [2023-02-18 03:50:00,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 03:50:00,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 03:50:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:50:00,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 03:50:00,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 03:50:00,150 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 03:50:00,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:50:00,178 INFO L93 Difference]: Finished difference Result 55 states and 82 transitions. [2023-02-18 03:50:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 03:50:00,180 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 03:50:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:50:00,187 INFO L225 Difference]: With dead ends: 55 [2023-02-18 03:50:00,187 INFO L226 Difference]: Without dead ends: 25 [2023-02-18 03:50:00,190 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 03:50:00,192 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 03:50:00,193 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 03:50:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-18 03:50:00,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-18 03:50:00,216 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 03:50:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-02-18 03:50:00,218 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 24 [2023-02-18 03:50:00,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:50:00,218 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-02-18 03:50:00,219 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 03:50:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-02-18 03:50:00,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 03:50:00,220 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:50:00,220 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 03:50:00,228 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 03:50:00,429 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 03:50:00,429 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:50:00,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:50:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash 324198000, now seen corresponding path program 1 times [2023-02-18 03:50:00,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:50:00,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539896102] [2023-02-18 03:50:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:00,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:50:00,452 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:50:00,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147711100] [2023-02-18 03:50:00,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:00,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:50:00,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:50:00,456 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 03:50:00,458 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 03:50:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:50:00,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 03:50:00,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:50:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 03:50:00,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 03:50:00,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:50:00,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539896102] [2023-02-18 03:50:00,652 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:50:00,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147711100] [2023-02-18 03:50:00,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147711100] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 03:50:00,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 03:50:00,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-18 03:50:00,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451797279] [2023-02-18 03:50:00,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 03:50:00,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 03:50:00,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:50:00,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 03:50:00,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-18 03:50:00,659 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 03:50:00,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:50:00,774 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2023-02-18 03:50:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 03:50:00,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-02-18 03:50:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:50:00,776 INFO L225 Difference]: With dead ends: 39 [2023-02-18 03:50:00,776 INFO L226 Difference]: Without dead ends: 37 [2023-02-18 03:50:00,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-18 03:50:00,778 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 03:50:00,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 76 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 03:50:00,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-18 03:50:00,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2023-02-18 03:50:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 03:50:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-02-18 03:50:00,787 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 24 [2023-02-18 03:50:00,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:50:00,787 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-02-18 03:50:00,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 03:50:00,788 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-02-18 03:50:00,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-18 03:50:00,788 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:50:00,789 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 03:50:00,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 03:50:00,994 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 03:50:00,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:50:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:50:00,995 INFO L85 PathProgramCache]: Analyzing trace with hash 693549193, now seen corresponding path program 1 times [2023-02-18 03:50:00,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:50:00,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829315696] [2023-02-18 03:50:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:00,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:50:01,009 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:50:01,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522263775] [2023-02-18 03:50:01,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:01,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:50:01,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:50:01,011 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 03:50:01,036 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 03:50:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:50:01,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 03:50:01,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:50:01,217 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 03:50:01,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 03:50:01,345 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 03:50:01,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:50:01,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829315696] [2023-02-18 03:50:01,346 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:50:01,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522263775] [2023-02-18 03:50:01,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522263775] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 03:50:01,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 03:50:01,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 16 [2023-02-18 03:50:01,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396333371] [2023-02-18 03:50:01,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 03:50:01,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 03:50:01,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:50:01,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 03:50:01,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-02-18 03:50:01,350 INFO L87 Difference]: Start difference. First operand 31 states and 38 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 03:50:01,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:50:01,606 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2023-02-18 03:50:01,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-18 03:50:01,607 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 03:50:01,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:50:01,611 INFO L225 Difference]: With dead ends: 47 [2023-02-18 03:50:01,611 INFO L226 Difference]: Without dead ends: 43 [2023-02-18 03:50:01,613 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 03:50:01,616 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 44 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 03:50:01,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 91 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 03:50:01,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-18 03:50:01,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2023-02-18 03:50:01,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 29 states have internal predecessors, (34), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 03:50:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2023-02-18 03:50:01,641 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 30 [2023-02-18 03:50:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:50:01,642 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2023-02-18 03:50:01,642 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 03:50:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2023-02-18 03:50:01,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-18 03:50:01,644 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:50:01,644 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] [2023-02-18 03:50:01,655 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 03:50:01,849 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 03:50:01,850 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:50:01,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:50:01,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1087866724, now seen corresponding path program 1 times [2023-02-18 03:50:01,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:50:01,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636905141] [2023-02-18 03:50:01,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:01,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:50:01,863 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:50:01,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709244181] [2023-02-18 03:50:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:01,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:50:01,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:50:01,865 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 03:50:01,892 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 03:50:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:50:01,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 38 conjunts are in the unsatisfiable core [2023-02-18 03:50:01,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:50:03,463 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 03:50:03,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 03:50:06,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:50:06,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636905141] [2023-02-18 03:50:06,216 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:50:06,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709244181] [2023-02-18 03:50:06,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709244181] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 03:50:06,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 03:50:06,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-02-18 03:50:06,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735766278] [2023-02-18 03:50:06,217 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 03:50:06,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 03:50:06,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:50:06,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 03:50:06,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2023-02-18 03:50:06,218 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 03:50:06,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:50:06,553 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2023-02-18 03:50:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 03:50:06,553 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 32 [2023-02-18 03:50:06,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:50:06,554 INFO L225 Difference]: With dead ends: 72 [2023-02-18 03:50:06,554 INFO L226 Difference]: Without dead ends: 54 [2023-02-18 03:50:06,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2023-02-18 03:50:06,555 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 48 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 03:50:06,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 94 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 03:50:06,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-18 03:50:06,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2023-02-18 03:50:06,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 38 states have internal predecessors, (45), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-18 03:50:06,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2023-02-18 03:50:06,564 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 32 [2023-02-18 03:50:06,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:50:06,564 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2023-02-18 03:50:06,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 03:50:06,565 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2023-02-18 03:50:06,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-18 03:50:06,566 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:50:06,566 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] [2023-02-18 03:50:06,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-18 03:50:06,771 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 03:50:06,772 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:50:06,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:50:06,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1487808418, now seen corresponding path program 1 times [2023-02-18 03:50:06,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:50:06,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68292551] [2023-02-18 03:50:06,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:06,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:50:06,784 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:50:06,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810757210] [2023-02-18 03:50:06,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:06,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:50:06,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:50:06,793 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 03:50:06,795 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 03:50:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:50:06,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-18 03:50:06,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:50:07,154 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 03:50:07,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 03:50:07,402 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 03:50:07,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:50:07,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68292551] [2023-02-18 03:50:07,402 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:50:07,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810757210] [2023-02-18 03:50:07,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810757210] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 03:50:07,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 03:50:07,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 19 [2023-02-18 03:50:07,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245947840] [2023-02-18 03:50:07,404 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 03:50:07,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-18 03:50:07,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:50:07,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-18 03:50:07,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-02-18 03:50:07,405 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 19 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 15 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-18 03:50:08,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:50:08,162 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2023-02-18 03:50:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-18 03:50:08,162 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 15 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 33 [2023-02-18 03:50:08,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:50:08,163 INFO L225 Difference]: With dead ends: 79 [2023-02-18 03:50:08,163 INFO L226 Difference]: Without dead ends: 51 [2023-02-18 03:50:08,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2023-02-18 03:50:08,165 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 41 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 03:50:08,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 86 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-18 03:50:08,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-02-18 03:50:08,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2023-02-18 03:50:08,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 03:50:08,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2023-02-18 03:50:08,172 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 33 [2023-02-18 03:50:08,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:50:08,173 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2023-02-18 03:50:08,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 15 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-18 03:50:08,173 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2023-02-18 03:50:08,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-18 03:50:08,174 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 03:50:08,174 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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, 1] [2023-02-18 03:50:08,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-18 03:50:08,379 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 03:50:08,380 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 03:50:08,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 03:50:08,381 INFO L85 PathProgramCache]: Analyzing trace with hash 97606081, now seen corresponding path program 1 times [2023-02-18 03:50:08,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 03:50:08,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831156986] [2023-02-18 03:50:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:08,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 03:50:08,392 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 03:50:08,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738439881] [2023-02-18 03:50:08,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 03:50:08,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:50:08,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 03:50:08,393 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 03:50:08,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 03:50:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 03:50:08,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-18 03:50:08,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 03:50:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-18 03:50:08,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 03:50:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-18 03:50:08,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 03:50:08,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831156986] [2023-02-18 03:50:08,500 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 03:50:08,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738439881] [2023-02-18 03:50:08,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738439881] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 03:50:08,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 03:50:08,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-02-18 03:50:08,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012531320] [2023-02-18 03:50:08,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 03:50:08,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 03:50:08,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 03:50:08,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 03:50:08,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-02-18 03:50:08,503 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 03:50:08,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 03:50:08,682 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2023-02-18 03:50:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 03:50:08,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-02-18 03:50:08,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 03:50:08,683 INFO L225 Difference]: With dead ends: 50 [2023-02-18 03:50:08,683 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 03:50:08,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-02-18 03:50:08,684 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 03:50:08,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 99 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 03:50:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 03:50:08,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 03:50:08,685 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 03:50:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 03:50:08,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-02-18 03:50:08,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 03:50:08,685 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 03:50:08,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 03:50:08,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 03:50:08,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 03:50:08,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 03:50:08,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 03:50:08,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 03:50:08,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 03:50:08,903 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 03:50:08,903 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2023-02-18 03:50:08,904 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-02-18 03:50:08,904 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 54) no Hoare annotation was computed. [2023-02-18 03:50:08,904 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 03:50:08,904 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 60) the Hoare annotation is: true [2023-02-18 03:50:08,904 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 54) no Hoare annotation was computed. [2023-02-18 03:50:08,905 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 55) the Hoare annotation is: (let ((.cse2 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (>= |ULTIMATE.start_main_~y~0#1| 1))) (let ((.cse1 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse3 (or (and (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0 (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) .cse0)) (.cse4 (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|) .cse2)))) (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|) .cse2) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)))))))) (or (and (<= |ULTIMATE.start_main_~y~0#1| 2) .cse0 (>= |ULTIMATE.start_main_~y~0#1| 0) (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse1) |ULTIMATE.start_main_~q~0#1|) .cse2) .cse3 (>= |ULTIMATE.start_main_~x~0#1| 0) .cse4 (<= |ULTIMATE.start_main_~x~0#1| 2) (= .cse1 0)) (and (>= |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| .cse1) |ULTIMATE.start_main_~q~0#1|) .cse2))) .cse0 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) .cse3 .cse4)))) [2023-02-18 03:50:08,905 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 03:50:08,905 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 03:50:08,905 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~x~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-02-18 03:50:08,905 INFO L895 garLoopResultBuilder]: At program point L26-1(line 26) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~y~0#1| 2) (>= |ULTIMATE.start_main_~y~0#1| 0) (>= |ULTIMATE.start_main_~x~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-02-18 03:50:08,905 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (let ((.cse2 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (>= |ULTIMATE.start_main_~y~0#1| 1))) (let ((.cse1 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse3 (or (and (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0 (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) .cse0)) (.cse4 (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|) .cse2)))) (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|) .cse2) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)))))))) (or (and (<= |ULTIMATE.start_main_~y~0#1| 2) .cse0 (>= |ULTIMATE.start_main_~y~0#1| 0) (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse1) |ULTIMATE.start_main_~q~0#1|) .cse2) .cse3 (>= |ULTIMATE.start_main_~x~0#1| 0) .cse4 (<= |ULTIMATE.start_main_~x~0#1| 2) (= .cse1 0)) (and (>= |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| .cse1) |ULTIMATE.start_main_~q~0#1|) .cse2))) .cse0 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) .cse3 .cse4)))) [2023-02-18 03:50:08,906 INFO L902 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: true [2023-02-18 03:50:08,906 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-02-18 03:50:08,906 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 54) no Hoare annotation was computed. [2023-02-18 03:50:08,906 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 34 55) the Hoare annotation is: (let ((.cse25 (not (= |ULTIMATE.start_main_~b~0#1| 0))) (.cse1 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse10 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse12 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse3 (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse9) |ULTIMATE.start_main_~q~0#1|) .cse10)) (.cse6 (or (and .cse1 (or (= |ULTIMATE.start_main_~q~0#1| .cse10) (and .cse25 (not (= |ULTIMATE.start_main_~a~0#1| 0))))) .cse1)) (.cse0 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse7 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (>= |ULTIMATE.start_main_~p~0#1| 1)) (.cse2 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse4 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse5 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and (= |ULTIMATE.start_main_~p~0#1| 1) .cse0 .cse7 .cse8 (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse9) |ULTIMATE.start_main_~q~0#1|) .cse10))) .cse1 .cse2 .cse11 .cse12 .cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse4 .cse5) (let ((.cse21 (mod |ULTIMATE.start_main_~x~0#1| 2)) (.cse22 (mod |ULTIMATE.start_main_~y~0#1| 2))) (let ((.cse23 (= .cse22 0)) (.cse15 (< |ULTIMATE.start_main_~y~0#1| 0)) (.cse20 (< |ULTIMATE.start_main_~x~0#1| 0)) (.cse24 (= .cse21 0))) (let ((.cse19 (not .cse24)) (.cse18 (or (not .cse20) .cse24)) (.cse13 (or .cse23 (not .cse15))) (.cse16 (not .cse23))) (and (let ((.cse14 (div |ULTIMATE.start_main_~y~0#1| 2))) (or (and .cse13 (= |ULTIMATE.start_main_~b~0#1| .cse14)) (and (= |ULTIMATE.start_main_~b~0#1| (+ 1 .cse14)) .cse15 .cse16))) .cse0 (let ((.cse17 (div |ULTIMATE.start_main_~x~0#1| 2))) (or (and (= .cse17 |ULTIMATE.start_main_~a~0#1|) .cse18) (and .cse19 .cse20 (= (+ .cse17 1) |ULTIMATE.start_main_~a~0#1|)))) .cse1 (or (and .cse19 .cse20 (<= (+ .cse21 (- 2)) 0)) (and .cse18 (<= .cse21 0))) .cse2 .cse12 .cse3 (not (= |ULTIMATE.start_main_~x~0#1| 0)) (= (* 4 1) |ULTIMATE.start_main_~p~0#1|) .cse4 .cse5 .cse6 (or (and .cse13 (<= .cse22 0)) (and .cse15 (<= (+ (- 2) .cse22) 0) .cse16)))))) (let ((.cse26 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse25 .cse0 .cse7 .cse8 .cse1 .cse2 .cse11 (= |ULTIMATE.start_main_~x~0#1| .cse26) .cse4 (let ((.cse27 (mod .cse26 2))) (let ((.cse28 (< .cse26 0)) (.cse29 (= .cse27 0))) (or (and (>= (+ .cse27 (- 2)) 1) .cse28 (not .cse29)) (and (or (not .cse28) .cse29) (>= .cse27 1))))) (= (+ (+ |ULTIMATE.start_main_~q~0#1| (* (- 1) |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~p~0#1|)) (* |ULTIMATE.start_main_~p~0#1| (* |ULTIMATE.start_main_~b~0#1| .cse26))) .cse10) .cse5 (not (= .cse26 0))))))) [2023-02-18 03:50:08,907 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse25 (not (= |ULTIMATE.start_main_~b~0#1| 0))) (.cse1 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse10 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse12 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse3 (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse9) |ULTIMATE.start_main_~q~0#1|) .cse10)) (.cse6 (or (and .cse1 (or (= |ULTIMATE.start_main_~q~0#1| .cse10) (and .cse25 (not (= |ULTIMATE.start_main_~a~0#1| 0))))) .cse1)) (.cse0 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse7 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (>= |ULTIMATE.start_main_~p~0#1| 1)) (.cse2 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse4 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse5 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and (= |ULTIMATE.start_main_~p~0#1| 1) .cse0 .cse7 .cse8 (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (>= |ULTIMATE.start_main_~p~0#1| 1) (= (+ (* |ULTIMATE.start_main_~p~0#1| .cse9) |ULTIMATE.start_main_~q~0#1|) .cse10))) .cse1 .cse2 .cse11 .cse12 .cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse4 .cse5) (let ((.cse21 (mod |ULTIMATE.start_main_~x~0#1| 2)) (.cse22 (mod |ULTIMATE.start_main_~y~0#1| 2))) (let ((.cse23 (= .cse22 0)) (.cse15 (< |ULTIMATE.start_main_~y~0#1| 0)) (.cse20 (< |ULTIMATE.start_main_~x~0#1| 0)) (.cse24 (= .cse21 0))) (let ((.cse19 (not .cse24)) (.cse18 (or (not .cse20) .cse24)) (.cse13 (or .cse23 (not .cse15))) (.cse16 (not .cse23))) (and (let ((.cse14 (div |ULTIMATE.start_main_~y~0#1| 2))) (or (and .cse13 (= |ULTIMATE.start_main_~b~0#1| .cse14)) (and (= |ULTIMATE.start_main_~b~0#1| (+ 1 .cse14)) .cse15 .cse16))) .cse0 (let ((.cse17 (div |ULTIMATE.start_main_~x~0#1| 2))) (or (and (= .cse17 |ULTIMATE.start_main_~a~0#1|) .cse18) (and .cse19 .cse20 (= (+ .cse17 1) |ULTIMATE.start_main_~a~0#1|)))) .cse1 (or (and .cse19 .cse20 (<= (+ .cse21 (- 2)) 0)) (and .cse18 (<= .cse21 0))) .cse2 .cse12 .cse3 (not (= |ULTIMATE.start_main_~x~0#1| 0)) (= (* 4 1) |ULTIMATE.start_main_~p~0#1|) .cse4 .cse5 .cse6 (or (and .cse13 (<= .cse22 0)) (and .cse15 (<= (+ (- 2) .cse22) 0) .cse16)))))) (let ((.cse26 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse25 .cse0 .cse7 .cse8 .cse1 .cse2 .cse11 (= |ULTIMATE.start_main_~x~0#1| .cse26) .cse4 (let ((.cse27 (mod .cse26 2))) (let ((.cse28 (< .cse26 0)) (.cse29 (= .cse27 0))) (or (and (>= (+ .cse27 (- 2)) 1) .cse28 (not .cse29)) (and (or (not .cse28) .cse29) (>= .cse27 1))))) (= (+ (+ |ULTIMATE.start_main_~q~0#1| (* (- 1) |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~p~0#1|)) (* |ULTIMATE.start_main_~p~0#1| (* |ULTIMATE.start_main_~b~0#1| .cse26))) .cse10) .cse5 (not (= .cse26 0))))))) [2023-02-18 03:50:08,907 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 34 55) no Hoare annotation was computed. [2023-02-18 03:50:08,907 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-02-18 03:50:08,907 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-02-18 03:50:08,907 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2023-02-18 03:50:08,907 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-02-18 03:50:08,908 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2023-02-18 03:50:08,908 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-02-18 03:50:08,908 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-02-18 03:50:08,908 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-02-18 03:50:08,908 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-02-18 03:50:08,908 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-02-18 03:50:08,911 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-02-18 03:50:08,913 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 03:50:08,922 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:50:08,923 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:50:08,929 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:50:08,929 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:50:08,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 03:50:08 BoogieIcfgContainer [2023-02-18 03:50:08,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 03:50:08,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 03:50:08,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 03:50:08,932 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 03:50:08,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:49:59" (3/4) ... [2023-02-18 03:50:08,935 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 03:50:08,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-18 03:50:08,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-18 03:50:08,950 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-18 03:50:08,950 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 03:50:08,950 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 03:50:08,950 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 03:50:08,968 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((y <= 2 && y >= 1) && y >= 0) && p * (a * b) + q == x * y) && x >= 0) && x <= 2) && ((y >= 1 && (q == x * y || (!(b == 0) && !(a == 0)))) || y >= 1)) || ((((((((((((p == 1 && y <= 2) && 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) && a == x) && x >= 0) && x <= 2)) || ((((((((((((((((y % 2 == 0 || !(y < 0)) && b == y / 2) || ((b == 1 + y / 2 && y < 0) && !(y % 2 == 0))) && y <= 2) && ((x / 2 == a && (!(x < 0) || x % 2 == 0)) || ((!(x % 2 == 0) && x < 0) && x / 2 + 1 == a))) && y >= 1) && (((!(x % 2 == 0) && x < 0) && x % 2 + -2 <= 0) || ((!(x < 0) || x % 2 == 0) && x % 2 <= 0))) && y >= 0) && q == 0) && p * (a * b) + q == x * y) && !(x == 0)) && 4 * 1 == p) && x >= 0) && x <= 2) && ((y >= 1 && (q == x * y || (!(b == 0) && !(a == 0)))) || y >= 1)) && (((y % 2 == 0 || !(y < 0)) && y % 2 <= 0) || ((y < 0 && -2 + y % 2 <= 0) && !(y % 2 == 0))))) || ((((((((((((!(b == 0) && y <= 2) && b == y) && p >= 1) && y >= 1) && y >= 0) && y <= b) && x == a + 1) && x >= 0) && ((((a + 1) % 2 + -2 >= 1 && a + 1 < 0) && !((a + 1) % 2 == 0)) || ((!(a + 1 < 0) || (a + 1) % 2 == 0) && (a + 1) % 2 >= 1))) && q + -1 * b * p + p * (b * (a + 1)) == x * y) && x <= 2) && !(a + 1 == 0)) [2023-02-18 03:50:08,975 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 03:50:08,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 03:50:08,975 INFO L158 Benchmark]: Toolchain (without parser) took 9652.56ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 130.7MB in the beginning and 114.6MB in the end (delta: 16.2MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2023-02-18 03:50:08,976 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 03:50:08,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.83ms. Allocated memory is still 176.2MB. Free memory was 130.4MB in the beginning and 120.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 03:50:08,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.41ms. Allocated memory is still 176.2MB. Free memory was 120.0MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 03:50:08,977 INFO L158 Benchmark]: Boogie Preprocessor took 23.26ms. Allocated memory is still 176.2MB. Free memory was 117.8MB in the beginning and 117.1MB in the end (delta: 723.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 03:50:08,977 INFO L158 Benchmark]: RCFGBuilder took 248.77ms. Allocated memory is still 176.2MB. Free memory was 117.1MB in the beginning and 105.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 03:50:08,977 INFO L158 Benchmark]: TraceAbstraction took 9119.97ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 104.5MB in the beginning and 116.7MB in the end (delta: -12.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-02-18 03:50:08,978 INFO L158 Benchmark]: Witness Printer took 43.11ms. Allocated memory is still 211.8MB. Free memory was 116.7MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 03:50:08,979 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 146.8MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.83ms. Allocated memory is still 176.2MB. Free memory was 130.4MB in the beginning and 120.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.41ms. Allocated memory is still 176.2MB. Free memory was 120.0MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.26ms. Allocated memory is still 176.2MB. Free memory was 117.8MB in the beginning and 117.1MB in the end (delta: 723.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 248.77ms. Allocated memory is still 176.2MB. Free memory was 117.1MB in the beginning and 105.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9119.97ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 104.5MB in the beginning and 116.7MB in the end (delta: -12.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Witness Printer took 43.11ms. Allocated memory is still 211.8MB. Free memory was 116.7MB in the beginning and 114.6MB 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: 9.0s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 482 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 346 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 769 IncrementalHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 136 mSDtfsCounter, 769 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=4, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 31 PreInvPairs, 46 NumberOfFragments, 1218 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 287 ConstructedInterpolants, 2 QuantifiedInterpolants, 1738 SizeOfPredicates, 29 NumberOfNonLiveVariables, 550 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 149/166 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 03:50:08,987 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:50:08,987 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:50:08,989 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-18 03:50:08,989 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] Derived loop invariant: ((((((((y <= 2 && y >= 1) && y >= 0) && p * (a * b) + q == x * y) && x >= 0) && x <= 2) && ((y >= 1 && (q == x * y || (!(b == 0) && !(a == 0)))) || y >= 1)) || ((((((((((((p == 1 && y <= 2) && 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) && a == x) && x >= 0) && x <= 2)) || ((((((((((((((((y % 2 == 0 || !(y < 0)) && b == y / 2) || ((b == 1 + y / 2 && y < 0) && !(y % 2 == 0))) && y <= 2) && ((x / 2 == a && (!(x < 0) || x % 2 == 0)) || ((!(x % 2 == 0) && x < 0) && x / 2 + 1 == a))) && y >= 1) && (((!(x % 2 == 0) && x < 0) && x % 2 + -2 <= 0) || ((!(x < 0) || x % 2 == 0) && x % 2 <= 0))) && y >= 0) && q == 0) && p * (a * b) + q == x * y) && !(x == 0)) && 4 * 1 == p) && x >= 0) && x <= 2) && ((y >= 1 && (q == x * y || (!(b == 0) && !(a == 0)))) || y >= 1)) && (((y % 2 == 0 || !(y < 0)) && y % 2 <= 0) || ((y < 0 && -2 + y % 2 <= 0) && !(y % 2 == 0))))) || ((((((((((((!(b == 0) && y <= 2) && b == y) && p >= 1) && y >= 1) && y >= 0) && y <= b) && x == a + 1) && x >= 0) && ((((a + 1) % 2 + -2 >= 1 && a + 1 < 0) && !((a + 1) % 2 == 0)) || ((!(a + 1 < 0) || (a + 1) % 2 == 0) && (a + 1) % 2 >= 1))) && q + -1 * b * p + p * (b * (a + 1)) == x * y) && x <= 2) && !(a + 1 == 0)) RESULT: Ultimate proved your program to be correct! [2023-02-18 03:50:09,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE