./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89424fd59ce1746651f12884595f9ce3dcee5e0b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 05:58:18,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 05:58:18,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 05:58:18,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 05:58:18,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 05:58:18,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 05:58:18,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 05:58:18,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 05:58:18,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 05:58:18,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 05:58:18,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 05:58:18,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 05:58:18,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 05:58:18,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 05:58:18,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 05:58:18,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 05:58:18,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 05:58:18,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 05:58:18,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 05:58:18,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 05:58:18,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 05:58:18,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 05:58:18,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 05:58:18,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 05:58:18,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 05:58:18,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 05:58:18,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 05:58:18,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 05:58:18,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 05:58:18,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 05:58:18,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 05:58:18,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 05:58:18,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 05:58:18,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 05:58:18,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 05:58:18,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 05:58:18,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 05:58:18,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 05:58:18,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 05:58:18,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 05:58:18,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 05:58:18,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 05:58:18,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 05:58:18,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 05:58:18,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 05:58:18,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 05:58:18,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 05:58:18,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 05:58:18,750 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 05:58:18,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 05:58:18,750 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 05:58:18,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 05:58:18,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 05:58:18,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 05:58:18,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 05:58:18,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 05:58:18,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 05:58:18,752 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 05:58:18,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 05:58:18,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 05:58:18,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 05:58:18,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 05:58:18,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 05:58:18,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 05:58:18,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 05:58:18,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 05:58:18,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 05:58:18,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 05:58:18,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 05:58:18,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 05:58:18,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 05:58:18,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 05:58:18,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89424fd59ce1746651f12884595f9ce3dcee5e0b [2021-08-26 05:58:18,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 05:58:19,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 05:58:19,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 05:58:19,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 05:58:19,003 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 05:58:19,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c [2021-08-26 05:58:19,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36676c149/3937d73edd944d4781bc217606fe8409/FLAGf60a7b322 [2021-08-26 05:58:19,422 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 05:58:19,423 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c [2021-08-26 05:58:19,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36676c149/3937d73edd944d4781bc217606fe8409/FLAGf60a7b322 [2021-08-26 05:58:19,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36676c149/3937d73edd944d4781bc217606fe8409 [2021-08-26 05:58:19,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 05:58:19,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 05:58:19,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 05:58:19,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 05:58:19,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 05:58:19,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@764ea5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19, skipping insertion in model container [2021-08-26 05:58:19,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 05:58:19,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 05:58:19,578 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c[490,503] [2021-08-26 05:58:19,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 05:58:19,610 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 05:58:19,634 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c[490,503] [2021-08-26 05:58:19,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 05:58:19,661 INFO L208 MainTranslator]: Completed translation [2021-08-26 05:58:19,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19 WrapperNode [2021-08-26 05:58:19,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 05:58:19,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 05:58:19,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 05:58:19,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 05:58:19,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 05:58:19,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 05:58:19,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 05:58:19,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 05:58:19,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 05:58:19,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 05:58:19,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 05:58:19,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 05:58:19,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (1/1) ... [2021-08-26 05:58:19,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 05:58:19,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:19,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 05:58:19,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 05:58:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 05:58:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 05:58:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 05:58:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 05:58:20,086 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 05:58:20,089 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-08-26 05:58:20,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 05:58:20 BoogieIcfgContainer [2021-08-26 05:58:20,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 05:58:20,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 05:58:20,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 05:58:20,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 05:58:20,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 05:58:19" (1/3) ... [2021-08-26 05:58:20,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3bfea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 05:58:20, skipping insertion in model container [2021-08-26 05:58:20,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:58:19" (2/3) ... [2021-08-26 05:58:20,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3bfea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 05:58:20, skipping insertion in model container [2021-08-26 05:58:20,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 05:58:20" (3/3) ... [2021-08-26 05:58:20,097 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound1.c [2021-08-26 05:58:20,100 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 05:58:20,100 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-08-26 05:58:20,135 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 05:58:20,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 05:58:20,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-26 05:58:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 38 states have (on average 1.631578947368421) internal successors, (62), 44 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 05:58:20,162 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:20,162 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:20,163 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:20,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:20,166 INFO L82 PathProgramCache]: Analyzing trace with hash 823104699, now seen corresponding path program 1 times [2021-08-26 05:58:20,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:20,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438681511] [2021-08-26 05:58:20,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:20,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:20,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:20,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:20,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438681511] [2021-08-26 05:58:20,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438681511] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 05:58:20,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 05:58:20,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 05:58:20,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222587937] [2021-08-26 05:58:20,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 05:58:20,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:20,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 05:58:20,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 05:58:20,289 INFO L87 Difference]: Start difference. First operand has 45 states, 38 states have (on average 1.631578947368421) internal successors, (62), 44 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:20,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:20,305 INFO L93 Difference]: Finished difference Result 87 states and 120 transitions. [2021-08-26 05:58:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 05:58:20,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-26 05:58:20,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:20,311 INFO L225 Difference]: With dead ends: 87 [2021-08-26 05:58:20,311 INFO L226 Difference]: Without dead ends: 41 [2021-08-26 05:58:20,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 05:58:20,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-26 05:58:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-26 05:58:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.2) internal successors, (42), 40 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2021-08-26 05:58:20,335 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 17 [2021-08-26 05:58:20,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:20,336 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2021-08-26 05:58:20,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:20,336 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2021-08-26 05:58:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-26 05:58:20,338 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:20,338 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:20,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 05:58:20,338 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:20,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1122121916, now seen corresponding path program 1 times [2021-08-26 05:58:20,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:20,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921576366] [2021-08-26 05:58:20,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:20,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:20,368 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:20,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313906847] [2021-08-26 05:58:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:20,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:20,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:20,378 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) [2021-08-26 05:58:20,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 05:58:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:20,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-26 05:58:20,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:20,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:20,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:20,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921576366] [2021-08-26 05:58:20,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:20,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313906847] [2021-08-26 05:58:20,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313906847] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 05:58:20,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 05:58:20,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 05:58:20,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145346513] [2021-08-26 05:58:20,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 05:58:20,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:20,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 05:58:20,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 05:58:20,649 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:20,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:20,738 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2021-08-26 05:58:20,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 05:58:20,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-26 05:58:20,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:20,740 INFO L225 Difference]: With dead ends: 69 [2021-08-26 05:58:20,740 INFO L226 Difference]: Without dead ends: 61 [2021-08-26 05:58:20,750 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-26 05:58:20,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-08-26 05:58:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 43. [2021-08-26 05:58:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 42 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:20,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-08-26 05:58:20,759 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 18 [2021-08-26 05:58:20,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:20,759 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-08-26 05:58:20,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-08-26 05:58:20,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-26 05:58:20,760 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:20,760 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:20,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:20,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:20,966 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:20,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:20,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1122125890, now seen corresponding path program 1 times [2021-08-26 05:58:20,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:20,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419102573] [2021-08-26 05:58:20,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:20,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:20,985 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:20,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769947582] [2021-08-26 05:58:20,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:20,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:20,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:20,987 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) [2021-08-26 05:58:20,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-26 05:58:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:21,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-26 05:58:21,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:21,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:21,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419102573] [2021-08-26 05:58:21,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:21,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769947582] [2021-08-26 05:58:21,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769947582] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 05:58:21,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 05:58:21,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-26 05:58:21,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629464989] [2021-08-26 05:58:21,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 05:58:21,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 05:58:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 05:58:21,300 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:21,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:21,434 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2021-08-26 05:58:21,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 05:58:21,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-26 05:58:21,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:21,437 INFO L225 Difference]: With dead ends: 79 [2021-08-26 05:58:21,437 INFO L226 Difference]: Without dead ends: 77 [2021-08-26 05:58:21,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 80.5ms TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-08-26 05:58:21,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-08-26 05:58:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 45. [2021-08-26 05:58:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 44 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-08-26 05:58:21,443 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 18 [2021-08-26 05:58:21,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:21,443 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-08-26 05:58:21,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-08-26 05:58:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-26 05:58:21,443 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:21,443 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:21,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:21,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-26 05:58:21,645 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:21,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:21,645 INFO L82 PathProgramCache]: Analyzing trace with hash 326346277, now seen corresponding path program 1 times [2021-08-26 05:58:21,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:21,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137536176] [2021-08-26 05:58:21,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:21,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:21,658 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:21,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338540231] [2021-08-26 05:58:21,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:21,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:21,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:21,663 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) [2021-08-26 05:58:21,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-26 05:58:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:21,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-26 05:58:21,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:22,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:22,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137536176] [2021-08-26 05:58:22,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:22,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338540231] [2021-08-26 05:58:22,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338540231] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 05:58:22,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 05:58:22,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 05:58:22,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888761919] [2021-08-26 05:58:22,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 05:58:22,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:22,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 05:58:22,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-26 05:58:22,045 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:22,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:22,169 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2021-08-26 05:58:22,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-26 05:58:22,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-26 05:58:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:22,170 INFO L225 Difference]: With dead ends: 63 [2021-08-26 05:58:22,170 INFO L226 Difference]: Without dead ends: 61 [2021-08-26 05:58:22,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 106.6ms TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-08-26 05:58:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-08-26 05:58:22,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2021-08-26 05:58:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:22,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2021-08-26 05:58:22,177 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 20 [2021-08-26 05:58:22,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:22,177 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2021-08-26 05:58:22,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:22,178 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2021-08-26 05:58:22,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 05:58:22,178 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:22,178 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:22,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:22,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:22,399 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:22,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:22,399 INFO L82 PathProgramCache]: Analyzing trace with hash 86317224, now seen corresponding path program 1 times [2021-08-26 05:58:22,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:22,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727628573] [2021-08-26 05:58:22,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:22,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:22,409 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:22,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927067957] [2021-08-26 05:58:22,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:22,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:22,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:22,410 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) [2021-08-26 05:58:22,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-26 05:58:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:22,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 30 conjunts are in the unsatisfiable core [2021-08-26 05:58:22,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:23,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:23,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727628573] [2021-08-26 05:58:23,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:23,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927067957] [2021-08-26 05:58:23,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927067957] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 05:58:23,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 05:58:23,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-26 05:58:23,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548218847] [2021-08-26 05:58:23,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-26 05:58:23,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:23,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-26 05:58:23,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-08-26 05:58:23,020 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:23,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:23,255 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2021-08-26 05:58:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-26 05:58:23,255 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-26 05:58:23,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:23,256 INFO L225 Difference]: With dead ends: 61 [2021-08-26 05:58:23,256 INFO L226 Difference]: Without dead ends: 59 [2021-08-26 05:58:23,256 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 246.4ms TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-08-26 05:58:23,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-08-26 05:58:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 54. [2021-08-26 05:58:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:23,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2021-08-26 05:58:23,259 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 22 [2021-08-26 05:58:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:23,260 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2021-08-26 05:58:23,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2021-08-26 05:58:23,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 05:58:23,260 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:23,260 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:23,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:23,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:23,465 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:23,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1346631627, now seen corresponding path program 1 times [2021-08-26 05:58:23,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:23,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596932986] [2021-08-26 05:58:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:23,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:23,481 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:23,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113938846] [2021-08-26 05:58:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:23,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:23,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:23,482 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) [2021-08-26 05:58:23,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-26 05:58:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:23,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-26 05:58:23,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:24,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:24,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596932986] [2021-08-26 05:58:24,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:24,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113938846] [2021-08-26 05:58:24,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113938846] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 05:58:24,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 05:58:24,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-26 05:58:24,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276127876] [2021-08-26 05:58:24,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 05:58:24,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:24,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 05:58:24,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-08-26 05:58:24,071 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:24,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:24,284 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2021-08-26 05:58:24,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-26 05:58:24,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-26 05:58:24,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:24,285 INFO L225 Difference]: With dead ends: 63 [2021-08-26 05:58:24,285 INFO L226 Difference]: Without dead ends: 61 [2021-08-26 05:58:24,285 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 212.4ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-08-26 05:58:24,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-08-26 05:58:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2021-08-26 05:58:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 48 states have (on average 1.1875) internal successors, (57), 53 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2021-08-26 05:58:24,289 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 24 [2021-08-26 05:58:24,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:24,290 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2021-08-26 05:58:24,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2021-08-26 05:58:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-26 05:58:24,290 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:24,290 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:24,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:24,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:24,505 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:24,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:24,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1781730828, now seen corresponding path program 1 times [2021-08-26 05:58:24,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:24,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299034710] [2021-08-26 05:58:24,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:24,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:24,515 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:24,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537482143] [2021-08-26 05:58:24,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:24,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:24,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:24,516 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) [2021-08-26 05:58:24,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-26 05:58:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:24,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-26 05:58:24,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:25,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:25,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299034710] [2021-08-26 05:58:25,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:25,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537482143] [2021-08-26 05:58:25,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537482143] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 05:58:25,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-26 05:58:25,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-08-26 05:58:25,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154949408] [2021-08-26 05:58:25,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 05:58:25,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:25,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 05:58:25,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-26 05:58:25,012 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:25,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:25,202 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2021-08-26 05:58:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-26 05:58:25,202 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-08-26 05:58:25,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:25,203 INFO L225 Difference]: With dead ends: 100 [2021-08-26 05:58:25,203 INFO L226 Difference]: Without dead ends: 63 [2021-08-26 05:58:25,203 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 144.1ms TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2021-08-26 05:58:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-08-26 05:58:25,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2021-08-26 05:58:25,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 60 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2021-08-26 05:58:25,208 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 27 [2021-08-26 05:58:25,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:25,208 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2021-08-26 05:58:25,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:25,209 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2021-08-26 05:58:25,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-26 05:58:25,209 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:25,209 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:25,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:25,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:25,425 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:25,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:25,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1655367537, now seen corresponding path program 1 times [2021-08-26 05:58:25,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:25,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485051679] [2021-08-26 05:58:25,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:25,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:25,433 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:25,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734613499] [2021-08-26 05:58:25,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:25,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:25,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:25,434 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 05:58:25,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-26 05:58:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:25,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-26 05:58:25,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:25,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:25,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:25,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485051679] [2021-08-26 05:58:25,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:25,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734613499] [2021-08-26 05:58:25,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734613499] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 05:58:25,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-26 05:58:25,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-08-26 05:58:25,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621962989] [2021-08-26 05:58:25,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 05:58:25,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:25,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 05:58:25,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-26 05:58:25,737 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:25,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:25,842 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2021-08-26 05:58:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 05:58:25,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-08-26 05:58:25,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:25,843 INFO L225 Difference]: With dead ends: 152 [2021-08-26 05:58:25,843 INFO L226 Difference]: Without dead ends: 144 [2021-08-26 05:58:25,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 51.5ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-08-26 05:58:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-08-26 05:58:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 94. [2021-08-26 05:58:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 88 states have (on average 1.2727272727272727) internal successors, (112), 93 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2021-08-26 05:58:25,850 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 30 [2021-08-26 05:58:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:25,850 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2021-08-26 05:58:25,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2021-08-26 05:58:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-26 05:58:25,851 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:25,851 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:25,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:26,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:26,065 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:26,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:26,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1655371511, now seen corresponding path program 1 times [2021-08-26 05:58:26,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:26,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495371319] [2021-08-26 05:58:26,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:26,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:26,074 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:26,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1919158090] [2021-08-26 05:58:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:26,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:26,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:26,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 05:58:26,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-26 05:58:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:26,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-26 05:58:26,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:26,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:26,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495371319] [2021-08-26 05:58:26,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:26,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919158090] [2021-08-26 05:58:26,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919158090] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 05:58:26,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 05:58:26,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 05:58:26,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266850577] [2021-08-26 05:58:26,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 05:58:26,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:26,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 05:58:26,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-26 05:58:26,497 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:26,600 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2021-08-26 05:58:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 05:58:26,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-08-26 05:58:26,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:26,601 INFO L225 Difference]: With dead ends: 123 [2021-08-26 05:58:26,601 INFO L226 Difference]: Without dead ends: 62 [2021-08-26 05:58:26,602 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 84.6ms TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-08-26 05:58:26,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-08-26 05:58:26,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-08-26 05:58:26,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 60 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2021-08-26 05:58:26,609 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 30 [2021-08-26 05:58:26,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:26,609 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2021-08-26 05:58:26,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2021-08-26 05:58:26,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-26 05:58:26,613 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:26,613 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:26,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:26,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-26 05:58:26,825 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:26,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:26,826 INFO L82 PathProgramCache]: Analyzing trace with hash -50686429, now seen corresponding path program 1 times [2021-08-26 05:58:26,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:26,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500441250] [2021-08-26 05:58:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:26,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:26,833 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:26,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314254679] [2021-08-26 05:58:26,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:26,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:26,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:26,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 05:58:26,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-26 05:58:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:27,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-26 05:58:27,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:28,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:28,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500441250] [2021-08-26 05:58:28,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:28,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314254679] [2021-08-26 05:58:28,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314254679] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 05:58:28,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-26 05:58:28,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-08-26 05:58:28,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890569207] [2021-08-26 05:58:28,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 05:58:28,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:28,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 05:58:28,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-08-26 05:58:28,019 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:28,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:28,319 INFO L93 Difference]: Finished difference Result 90 states and 92 transitions. [2021-08-26 05:58:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-26 05:58:28,320 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-08-26 05:58:28,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:28,322 INFO L225 Difference]: With dead ends: 90 [2021-08-26 05:58:28,322 INFO L226 Difference]: Without dead ends: 88 [2021-08-26 05:58:28,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 241.3ms TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-08-26 05:58:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-08-26 05:58:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 66. [2021-08-26 05:58:28,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 60 states have (on average 1.1333333333333333) internal successors, (68), 65 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2021-08-26 05:58:28,334 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 39 [2021-08-26 05:58:28,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:28,334 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2021-08-26 05:58:28,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:28,334 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2021-08-26 05:58:28,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-26 05:58:28,335 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:28,336 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:28,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:28,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-26 05:58:28,555 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:28,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:28,556 INFO L82 PathProgramCache]: Analyzing trace with hash -50682455, now seen corresponding path program 1 times [2021-08-26 05:58:28,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:28,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368416057] [2021-08-26 05:58:28,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:28,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:28,566 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:28,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621113762] [2021-08-26 05:58:28,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:28,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:28,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:28,571 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 05:58:28,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-26 05:58:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:28,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-26 05:58:28,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:29,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:29,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368416057] [2021-08-26 05:58:29,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:29,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621113762] [2021-08-26 05:58:29,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621113762] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 05:58:29,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-26 05:58:29,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-08-26 05:58:29,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416145914] [2021-08-26 05:58:29,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 05:58:29,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:29,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 05:58:29,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-08-26 05:58:29,141 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:29,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:29,261 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2021-08-26 05:58:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-26 05:58:29,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-08-26 05:58:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:29,262 INFO L225 Difference]: With dead ends: 70 [2021-08-26 05:58:29,262 INFO L226 Difference]: Without dead ends: 42 [2021-08-26 05:58:29,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 105.6ms TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-08-26 05:58:29,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-26 05:58:29,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-08-26 05:58:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.0) internal successors, (41), 41 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:29,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2021-08-26 05:58:29,275 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 39 [2021-08-26 05:58:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:29,275 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2021-08-26 05:58:29,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2021-08-26 05:58:29,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-26 05:58:29,282 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 05:58:29,282 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 05:58:29,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:29,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-26 05:58:29,497 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-26 05:58:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 05:58:29,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1464858938, now seen corresponding path program 1 times [2021-08-26 05:58:29,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 05:58:29,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615164936] [2021-08-26 05:58:29,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:29,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 05:58:29,505 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-26 05:58:29,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174060472] [2021-08-26 05:58:29,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 05:58:29,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 05:58:29,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 05:58:29,506 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 05:58:29,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-26 05:58:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 05:58:29,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-26 05:58:29,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 05:58:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 05:58:30,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 05:58:30,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615164936] [2021-08-26 05:58:30,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-26 05:58:30,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174060472] [2021-08-26 05:58:30,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174060472] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 05:58:30,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-26 05:58:30,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-08-26 05:58:30,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051976403] [2021-08-26 05:58:30,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-26 05:58:30,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 05:58:30,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-26 05:58:30,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-26 05:58:30,563 INFO L87 Difference]: Start difference. First operand 42 states and 41 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:30,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 05:58:30,775 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2021-08-26 05:58:30,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-26 05:58:30,775 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-08-26 05:58:30,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 05:58:30,775 INFO L225 Difference]: With dead ends: 42 [2021-08-26 05:58:30,776 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 05:58:30,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 207.2ms TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-08-26 05:58:30,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 05:58:30,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 05:58:30,776 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) [2021-08-26 05:58:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 05:58:30,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-08-26 05:58:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 05:58:30,776 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 05:58:30,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 05:58:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 05:58:30,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 05:58:30,778 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 05:58:30,778 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 05:58:30,779 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 05:58:30,779 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 05:58:30,779 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 05:58:30,779 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 05:58:30,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-26 05:58:30,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-26 05:58:30,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 05:58:30,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:30,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:31,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:31,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:31,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:31,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:31,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:31,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:31,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 05:58:32,065 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 05:58:32,066 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2021-08-26 05:58:32,067 INFO L853 garLoopResultBuilder]: At program point L11-2(lines 10 16) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 1 ULTIMATE.start_main_~b~0)) (.cse4 (= ULTIMATE.start_main_~yy~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (<= 1 ULTIMATE.start_main_~x~0)) (.cse9 (<= ULTIMATE.start_main_~a~0 1)) (.cse10 (<= ULTIMATE.start_main_~y~0 1)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (let ((.cse12 (+ ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~b~0))) (and (= ULTIMATE.start_main_~a~0 .cse12) .cse0 .cse1 .cse2 (<= ULTIMATE.start_main_~x~0 .cse12) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_main_~k~0 1) .cse9 .cse10 .cse11)))) [2021-08-26 05:58:32,067 INFO L857 garLoopResultBuilder]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2021-08-26 05:58:32,067 INFO L853 garLoopResultBuilder]: At program point L11-5(lines 10 16) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 1 ULTIMATE.start_main_~b~0)) (.cse4 (= ULTIMATE.start_main_~yy~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (<= 1 ULTIMATE.start_main_~x~0)) (.cse9 (<= ULTIMATE.start_main_~a~0 1)) (.cse10 (<= ULTIMATE.start_main_~y~0 1)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (let ((.cse12 (+ ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~b~0))) (and (= ULTIMATE.start_main_~a~0 .cse12) .cse0 .cse1 .cse2 (<= ULTIMATE.start_main_~x~0 .cse12) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_main_~k~0 1) .cse9 .cse10 .cse11)))) [2021-08-26 05:58:32,067 INFO L857 garLoopResultBuilder]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2021-08-26 05:58:32,067 INFO L853 garLoopResultBuilder]: At program point L11-8(lines 10 16) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 1 ULTIMATE.start_main_~b~0)) (.cse4 (= ULTIMATE.start_main_~yy~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (<= 1 ULTIMATE.start_main_~x~0)) (.cse9 (<= ULTIMATE.start_main_~a~0 1)) (.cse10 (<= ULTIMATE.start_main_~y~0 1)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (let ((.cse12 (+ ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~b~0))) (and (= ULTIMATE.start_main_~a~0 .cse12) .cse0 .cse1 .cse2 (<= ULTIMATE.start_main_~x~0 .cse12) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_main_~k~0 1) .cse9 .cse10 .cse11)))) [2021-08-26 05:58:32,067 INFO L857 garLoopResultBuilder]: For program point L11-9(lines 11 14) no Hoare annotation was computed. [2021-08-26 05:58:32,067 INFO L853 garLoopResultBuilder]: At program point L11-11(lines 52 53) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 1 ULTIMATE.start_main_~b~0)) (.cse4 (= ULTIMATE.start_main_~yy~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (<= 1 ULTIMATE.start_main_~x~0)) (.cse9 (<= ULTIMATE.start_main_~a~0 1)) (.cse10 (<= ULTIMATE.start_main_~y~0 1)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (let ((.cse12 (+ ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~b~0))) (and (= ULTIMATE.start_main_~a~0 .cse12) .cse0 .cse1 .cse2 (<= ULTIMATE.start_main_~x~0 .cse12) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_main_~k~0 1) .cse9 .cse10 .cse11)))) [2021-08-26 05:58:32,067 INFO L857 garLoopResultBuilder]: For program point L11-12(lines 11 14) no Hoare annotation was computed. [2021-08-26 05:58:32,068 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 05:58:32,068 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 05:58:32,068 INFO L853 garLoopResultBuilder]: At program point L11-14(lines 10 16) the Hoare annotation is: (and (< (* 2 ULTIMATE.start_main_~c~0) 1) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~p~0 0) (<= 0 ULTIMATE.start_main_~c~0) (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~r~0 1) (< (* 2 ULTIMATE.start_main_~b~0) 1) (<= 1 ULTIMATE.start_main_~x~0) (< ULTIMATE.start_main_~x~0 (* 2 ULTIMATE.start_main_~a~0)) (<= ULTIMATE.start_main_~a~0 1) (<= ULTIMATE.start_main_~y~0 1)) [2021-08-26 05:58:32,068 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 05:58:32,068 INFO L857 garLoopResultBuilder]: For program point L11-15(lines 11 14) no Hoare annotation was computed. [2021-08-26 05:58:32,069 INFO L860 garLoopResultBuilder]: At program point L11-17(lines 10 16) the Hoare annotation is: true [2021-08-26 05:58:32,069 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2021-08-26 05:58:32,069 INFO L857 garLoopResultBuilder]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2021-08-26 05:58:32,069 INFO L857 garLoopResultBuilder]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2021-08-26 05:58:32,069 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2021-08-26 05:58:32,069 INFO L857 garLoopResultBuilder]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2021-08-26 05:58:32,069 INFO L857 garLoopResultBuilder]: For program point L12-5(lines 12 13) no Hoare annotation was computed. [2021-08-26 05:58:32,069 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 05:58:32,070 INFO L853 garLoopResultBuilder]: At program point L47-2(lines 47 56) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (<= 1 ULTIMATE.start_main_~b~0)) (.cse4 (= ULTIMATE.start_main_~yy~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (<= 1 ULTIMATE.start_main_~x~0)) (.cse9 (<= ULTIMATE.start_main_~a~0 1)) (.cse10 (<= ULTIMATE.start_main_~y~0 1)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (let ((.cse0 (+ ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~b~0))) (and (= ULTIMATE.start_main_~a~0 .cse0) .cse1 .cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~x~0 .cse0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_main_~k~0 1) .cse9 .cse10 .cse11)) (and .cse1 (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2021-08-26 05:58:32,070 INFO L857 garLoopResultBuilder]: For program point L47-3(lines 47 56) no Hoare annotation was computed. [2021-08-26 05:58:32,070 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 05:58:32,070 INFO L860 garLoopResultBuilder]: At program point L73(lines 18 74) the Hoare annotation is: true [2021-08-26 05:58:32,070 INFO L857 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-08-26 05:58:32,070 INFO L857 garLoopResultBuilder]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2021-08-26 05:58:32,070 INFO L857 garLoopResultBuilder]: For program point L7-2(lines 7 9) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point L7-4(lines 7 9) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L853 garLoopResultBuilder]: At program point L41-1(lines 7 68) the Hoare annotation is: (let ((.cse0 (< (* 2 ULTIMATE.start_main_~c~0) 1)) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 0 ULTIMATE.start_main_~c~0)) (.cse3 (<= 1 ULTIMATE.start_main_~x~0)) (.cse4 (<= ULTIMATE.start_main_~a~0 1)) (.cse5 (<= ULTIMATE.start_main_~y~0 1))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~p~0 1) .cse2 (<= 1 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~yy~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~s~0 1) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (and .cse0 (= (+ ULTIMATE.start_main_~s~0 1) 0) .cse1 (<= 0 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~p~0 0) .cse2 (= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~q~0 1) (< (* 2 ULTIMATE.start_main_~b~0) 1) .cse3 (< (div (+ (- 1) (* ULTIMATE.start_main_~x~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1)) (< ULTIMATE.start_main_~x~0 (* 2 ULTIMATE.start_main_~a~0)) .cse4 .cse5))) [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point L41-2(lines 41 68) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point L8-2(line 8) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2021-08-26 05:58:32,071 INFO L857 garLoopResultBuilder]: For program point L8-6(line 8) no Hoare annotation was computed. [2021-08-26 05:58:32,072 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 05:58:32,072 INFO L857 garLoopResultBuilder]: For program point L8-8(line 8) no Hoare annotation was computed. [2021-08-26 05:58:32,072 INFO L857 garLoopResultBuilder]: For program point L8-10(line 8) no Hoare annotation was computed. [2021-08-26 05:58:32,072 INFO L857 garLoopResultBuilder]: For program point L42(lines 42 43) no Hoare annotation was computed. [2021-08-26 05:58:32,072 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 05:58:32,075 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 05:58:32,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 05:58:32 BoogieIcfgContainer [2021-08-26 05:58:32,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 05:58:32,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 05:58:32,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 05:58:32,107 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 05:58:32,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 05:58:20" (3/4) ... [2021-08-26 05:58:32,110 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 05:58:32,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-08-26 05:58:32,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 05:58:32,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 05:58:32,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 05:58:32,155 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 05:58:32,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 05:58:32,156 INFO L168 Benchmark]: Toolchain (without parser) took 12708.92 ms. Allocated memory was 67.1 MB in the beginning and 234.9 MB in the end (delta: 167.8 MB). Free memory was 48.2 MB in the beginning and 95.0 MB in the end (delta: -46.8 MB). Peak memory consumption was 120.6 MB. Max. memory is 16.1 GB. [2021-08-26 05:58:32,157 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 45.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 05:58:32,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.82 ms. Allocated memory is still 67.1 MB. Free memory was 48.0 MB in the beginning and 50.7 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 05:58:32,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.31 ms. Allocated memory is still 67.1 MB. Free memory was 50.7 MB in the beginning and 48.7 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 05:58:32,158 INFO L168 Benchmark]: Boogie Preprocessor took 31.92 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 47.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 05:58:32,158 INFO L168 Benchmark]: RCFGBuilder took 355.59 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 47.6 MB in the beginning and 73.7 MB in the end (delta: -26.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2021-08-26 05:58:32,158 INFO L168 Benchmark]: TraceAbstraction took 12014.98 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 73.3 MB in the beginning and 99.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 146.4 MB. Max. memory is 16.1 GB. [2021-08-26 05:58:32,159 INFO L168 Benchmark]: Witness Printer took 48.09 ms. Allocated memory is still 234.9 MB. Free memory was 99.2 MB in the beginning and 95.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 05:58:32,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 45.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 213.82 ms. Allocated memory is still 67.1 MB. Free memory was 48.0 MB in the beginning and 50.7 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.31 ms. Allocated memory is still 67.1 MB. Free memory was 50.7 MB in the beginning and 48.7 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.92 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 47.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 355.59 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 47.6 MB in the beginning and 73.7 MB in the end (delta: -26.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12014.98 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 73.3 MB in the beginning and 99.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 146.4 MB. Max. memory is 16.1 GB. * Witness Printer took 48.09 ms. Allocated memory is still 234.9 MB. Free memory was 99.2 MB in the beginning and 95.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: 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 1 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 11940.6ms, OverallIterations: 12, TraceHistogramMax: 3, EmptinessCheckTime: 24.4ms, AutomataDifference: 1898.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1085.5ms, InitialAbstractionConstructionTime: 9.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 360 SDtfs, 1138 SDslu, 1086 SDs, 0 SdLazy, 1233 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 639.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 356 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1526.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=8, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 83.0ms AutomataMinimizationTime, 12 MinimizatonAttempts, 144 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 24 NumberOfFragments, 669 HoareAnnotationTreeSize, 9 FomulaSimplifications, 814 FormulaSimplificationTreeSizeReduction, 75.4ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 439 FormulaSimplificationTreeSizeReductionInter, 1004.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 81.8ms SsaConstructionTime, 228.2ms SatisfiabilityAnalysisTime, 4288.4ms InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 3419 SizeOfPredicates, 107 NumberOfNonLiveVariables, 1450 ConjunctsInSsa, 228 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 8/45 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 6 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((((cond == 1 && k == 0) && x <= 1) && p == 1) && 1 == cond) && 1 <= c) && 1 <= b) && yy == y * y) && q == 0) && c == a) && r == 0) && s == 1) && 1 <= x) && a <= 1) && y <= 1) && b == y) || ((((((((((((((a == c + b && cond == 1) && p == 1) && 1 == cond) && x <= c + b) && 1 <= b) && yy == y * y) && q == 0) && r == 0) && s == 1) && 1 <= x) && k == 1) && a <= 1) && y <= 1) && b == y) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((((cond == 1 && k == 0) && x <= 1) && p == 1) && 1 == cond) && 1 <= c) && 1 <= b) && yy == y * y) && q == 0) && c == a) && r == 0) && s == 1) && 1 <= x) && a <= 1) && y <= 1) && b == y) || ((((((((((((((a == c + b && cond == 1) && p == 1) && 1 == cond) && x <= c + b) && 1 <= b) && yy == y * y) && q == 0) && r == 0) && s == 1) && 1 <= x) && k == 1) && a <= 1) && y <= 1) && b == y) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((a == c + b && cond == 1) && p == 1) && 1 == cond) && x <= c + b) && 1 <= b) && yy == y * y) && q == 0) && r == 0) && s == 1) && 1 <= x) && k == 1) && a <= 1) && y <= 1) && b == y) || ((((((((((((((cond == 1 && k == 0) && x <= 1) && p == 1) && 1 <= c) && 1 <= b) && yy == y * y) && q == 0) && c == a) && r == 0) && s == 1) && 1 <= x) && a <= 1) && y <= 1) && b == y) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((((((((((((((cond == 1 && k == 0) && x <= 1) && p == 1) && 1 == cond) && 1 <= c) && 1 <= b) && yy == y * y) && q == 0) && c == a) && r == 0) && s == 1) && 1 <= x) && a <= 1) && y <= 1) && b == y) || ((((((((((((((a == c + b && cond == 1) && p == 1) && 1 == cond) && x <= c + b) && 1 <= b) && yy == y * y) && q == 0) && r == 0) && s == 1) && 1 <= x) && k == 1) && a <= 1) && y <= 1) && b == y) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((2 * c < 1 && cond == 1) && 0 <= b) && p == 0) && 0 <= c) && 1 <= y) && r == 1) && 2 * b < 1) && 1 <= x) && x < 2 * a) && a <= 1) && y <= 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((((cond == 1 && k == 0) && x <= 1) && p == 1) && 1 == cond) && 1 <= c) && 1 <= b) && yy == y * y) && q == 0) && c == a) && r == 0) && s == 1) && 1 <= x) && a <= 1) && y <= 1) && b == y) || ((((((((((((((a == c + b && cond == 1) && p == 1) && 1 == cond) && x <= c + b) && 1 <= b) && yy == y * y) && q == 0) && r == 0) && s == 1) && 1 <= x) && k == 1) && a <= 1) && y <= 1) && b == y) - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: (((((((((((((2 * c < 1 && cond == 1) && a == x) && p == 1) && 0 <= c) && 1 <= b) && yy == y * y) && q == 0) && r == 0) && s == 1) && 1 <= x) && a <= 1) && y <= 1) && b == y) || (((((((((((((2 * c < 1 && s + 1 == 0) && cond == 1) && 0 <= b) && p == 0) && 0 <= c) && r == 1) && q == 1) && 2 * b < 1) && 1 <= x) && (-1 + x * -1) / -2 < y + 1) && x < 2 * a) && a <= 1) && y <= 1) RESULT: Ultimate proved your program to be correct! [2021-08-26 05:58:32,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...