./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae 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_valuebound2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebdf8b0d6633d593d56778eaf5218135ab2be92cae14e75cdda2462494f96410 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 02:02:26,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 02:02:26,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 02:02:26,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 02:02:26,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 02:02:26,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 02:02:26,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 02:02:26,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 02:02:26,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 02:02:26,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 02:02:26,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 02:02:26,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 02:02:26,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 02:02:26,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 02:02:26,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 02:02:26,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 02:02:26,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 02:02:26,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 02:02:26,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 02:02:26,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 02:02:26,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 02:02:26,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 02:02:26,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 02:02:26,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 02:02:26,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 02:02:26,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 02:02:26,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 02:02:26,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 02:02:26,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 02:02:26,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 02:02:26,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 02:02:26,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 02:02:26,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 02:02:26,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 02:02:26,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 02:02:26,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 02:02:26,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 02:02:26,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 02:02:26,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 02:02:26,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 02:02:26,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 02:02:26,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 02:02:26,695 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 02:02:26,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 02:02:26,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 02:02:26,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 02:02:26,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 02:02:26,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 02:02:26,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 02:02:26,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 02:02:26,697 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 02:02:26,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 02:02:26,697 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 02:02:26,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 02:02:26,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 02:02:26,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 02:02:26,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 02:02:26,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 02:02:26,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 02:02:26,698 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 02:02:26,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 02:02:26,699 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 02:02:26,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 02:02:26,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 02:02:26,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 02:02:26,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 02:02:26,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:02:26,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 02:02:26,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 02:02:26,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 02:02:26,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 02:02:26,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 02:02:26,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 02:02:26,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 02:02:26,701 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 02:02:26,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 02:02:26,702 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 02:02:26,702 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebdf8b0d6633d593d56778eaf5218135ab2be92cae14e75cdda2462494f96410 [2023-02-16 02:02:26,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 02:02:26,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 02:02:26,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 02:02:26,942 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 02:02:26,943 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 02:02:26,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c [2023-02-16 02:02:27,884 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 02:02:28,003 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 02:02:28,003 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c [2023-02-16 02:02:28,010 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1986c8db8/49a84675a6a74cdba3ce0e900d882ea8/FLAGad39a9aa6 [2023-02-16 02:02:28,019 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1986c8db8/49a84675a6a74cdba3ce0e900d882ea8 [2023-02-16 02:02:28,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 02:02:28,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 02:02:28,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 02:02:28,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 02:02:28,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 02:02:28,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7aa2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28, skipping insertion in model container [2023-02-16 02:02:28,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 02:02:28,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 02:02:28,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c[490,503] [2023-02-16 02:02:28,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:02:28,176 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 02:02:28,186 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c[490,503] [2023-02-16 02:02:28,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:02:28,205 INFO L208 MainTranslator]: Completed translation [2023-02-16 02:02:28,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28 WrapperNode [2023-02-16 02:02:28,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 02:02:28,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 02:02:28,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 02:02:28,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 02:02:28,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,233 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2023-02-16 02:02:28,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 02:02:28,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 02:02:28,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 02:02:28,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 02:02:28,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,254 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 02:02:28,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 02:02:28,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 02:02:28,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 02:02:28,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (1/1) ... [2023-02-16 02:02:28,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:02:28,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:28,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 02:02:28,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 02:02:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 02:02:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-16 02:02:28,324 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-16 02:02:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 02:02:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 02:02:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 02:02:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-16 02:02:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-16 02:02:28,381 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 02:02:28,384 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 02:02:28,570 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 02:02:28,574 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 02:02:28,575 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 02:02:28,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:02:28 BoogieIcfgContainer [2023-02-16 02:02:28,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 02:02:28,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 02:02:28,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 02:02:28,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 02:02:28,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 02:02:28" (1/3) ... [2023-02-16 02:02:28,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ff593d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:02:28, skipping insertion in model container [2023-02-16 02:02:28,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:02:28" (2/3) ... [2023-02-16 02:02:28,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ff593d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:02:28, skipping insertion in model container [2023-02-16 02:02:28,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:02:28" (3/3) ... [2023-02-16 02:02:28,600 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound2.c [2023-02-16 02:02:28,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 02:02:28,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 02:02:28,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 02:02:28,679 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a36e3d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 02:02:28,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 02:02:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 21 states have internal predecessors, (28), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-02-16 02:02:28,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-16 02:02:28,689 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:28,689 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:28,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:28,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:28,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1146169762, now seen corresponding path program 1 times [2023-02-16 02:02:28,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:28,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409141603] [2023-02-16 02:02:28,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:28,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:28,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:28,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409141603] [2023-02-16 02:02:28,817 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 02:02:28,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112199300] [2023-02-16 02:02:28,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:28,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:28,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:28,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:28,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 02:02:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:28,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 02:02:28,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-02-16 02:02:28,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:02:28,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112199300] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:02:28,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:02:28,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 02:02:28,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050811859] [2023-02-16 02:02:28,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:02:28,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 02:02:28,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:28,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 02:02:28,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:02:28,943 INFO L87 Difference]: Start difference. First operand has 35 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 21 states have internal predecessors, (28), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:02:28,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:28,958 INFO L93 Difference]: Finished difference Result 67 states and 112 transitions. [2023-02-16 02:02:28,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 02:02:28,960 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-02-16 02:02:28,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:28,966 INFO L225 Difference]: With dead ends: 67 [2023-02-16 02:02:28,966 INFO L226 Difference]: Without dead ends: 31 [2023-02-16 02:02:28,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:02:28,975 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:28,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:02:28,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-16 02:02:29,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-16 02:02:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-16 02:02:29,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2023-02-16 02:02:29,004 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 39 [2023-02-16 02:02:29,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:29,005 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2023-02-16 02:02:29,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:02:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-02-16 02:02:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-16 02:02:29,007 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:29,007 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:29,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-16 02:02:29,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-16 02:02:29,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:29,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:29,215 INFO L85 PathProgramCache]: Analyzing trace with hash 846808023, now seen corresponding path program 1 times [2023-02-16 02:02:29,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:29,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316336758] [2023-02-16 02:02:29,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:29,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:29,233 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:29,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276437632] [2023-02-16 02:02:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:29,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:29,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:29,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:29,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 02:02:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:29,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 02:02:29,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:29,415 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:02:29,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:02:29,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:29,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316336758] [2023-02-16 02:02:29,532 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:29,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276437632] [2023-02-16 02:02:29,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276437632] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:29,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:29,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-02-16 02:02:29,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599106720] [2023-02-16 02:02:29,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:29,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-16 02:02:29,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-16 02:02:29,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-16 02:02:29,540 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:02:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:29,645 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2023-02-16 02:02:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:02:29,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-02-16 02:02:29,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:29,648 INFO L225 Difference]: With dead ends: 48 [2023-02-16 02:02:29,648 INFO L226 Difference]: Without dead ends: 40 [2023-02-16 02:02:29,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-02-16 02:02:29,650 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 20 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:29,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 88 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:02:29,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-16 02:02:29,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2023-02-16 02:02:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-16 02:02:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2023-02-16 02:02:29,663 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 40 [2023-02-16 02:02:29,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:29,663 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2023-02-16 02:02:29,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:02:29,664 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2023-02-16 02:02:29,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-16 02:02:29,665 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:29,665 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:29,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-16 02:02:29,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-02-16 02:02:29,870 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:29,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:29,870 INFO L85 PathProgramCache]: Analyzing trace with hash 481927254, now seen corresponding path program 1 times [2023-02-16 02:02:29,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:29,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689017139] [2023-02-16 02:02:29,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:29,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:29,885 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:29,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945706684] [2023-02-16 02:02:29,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:29,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:29,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:29,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:29,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 02:02:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:29,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 02:02:29,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:30,014 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:02:30,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:30,076 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-16 02:02:30,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:30,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689017139] [2023-02-16 02:02:30,077 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:30,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945706684] [2023-02-16 02:02:30,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945706684] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-16 02:02:30,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:02:30,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-02-16 02:02:30,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345585638] [2023-02-16 02:02:30,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:02:30,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:02:30,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:30,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:02:30,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-02-16 02:02:30,079 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-16 02:02:30,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:30,122 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2023-02-16 02:02:30,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:02:30,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 41 [2023-02-16 02:02:30,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:30,124 INFO L225 Difference]: With dead ends: 39 [2023-02-16 02:02:30,124 INFO L226 Difference]: Without dead ends: 37 [2023-02-16 02:02:30,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-02-16 02:02:30,127 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:30,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 120 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:02:30,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-16 02:02:30,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-02-16 02:02:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-16 02:02:30,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2023-02-16 02:02:30,147 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 41 [2023-02-16 02:02:30,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:30,147 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2023-02-16 02:02:30,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-16 02:02:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2023-02-16 02:02:30,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 02:02:30,153 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:30,153 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-02-16 02:02:30,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:30,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:30,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:30,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1626076469, now seen corresponding path program 1 times [2023-02-16 02:02:30,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:30,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178673006] [2023-02-16 02:02:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:30,372 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:30,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430013153] [2023-02-16 02:02:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:30,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:30,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:30,374 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:30,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 02:02:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:30,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-16 02:02:30,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-16 02:02:30,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:30,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:30,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178673006] [2023-02-16 02:02:30,655 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:30,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430013153] [2023-02-16 02:02:30,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430013153] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:02:30,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:02:30,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-02-16 02:02:30,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904457056] [2023-02-16 02:02:30,656 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:30,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-16 02:02:30,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:30,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 02:02:30,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-02-16 02:02:30,657 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-02-16 02:02:30,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:30,805 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2023-02-16 02:02:30,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 02:02:30,812 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 46 [2023-02-16 02:02:30,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:30,813 INFO L225 Difference]: With dead ends: 50 [2023-02-16 02:02:30,813 INFO L226 Difference]: Without dead ends: 48 [2023-02-16 02:02:30,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-02-16 02:02:30,814 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 23 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:30,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 143 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:02:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-16 02:02:30,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2023-02-16 02:02:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-16 02:02:30,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-02-16 02:02:30,820 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 46 [2023-02-16 02:02:30,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:30,820 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-02-16 02:02:30,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-02-16 02:02:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-02-16 02:02:30,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-02-16 02:02:30,821 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:30,822 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 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, 1, 1] [2023-02-16 02:02:30,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-16 02:02:31,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:31,026 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:31,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:31,027 INFO L85 PathProgramCache]: Analyzing trace with hash 779090230, now seen corresponding path program 1 times [2023-02-16 02:02:31,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:31,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174345406] [2023-02-16 02:02:31,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:31,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:31,037 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:31,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625859860] [2023-02-16 02:02:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:31,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:31,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:31,053 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:31,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 02:02:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:31,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-16 02:02:31,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:31,321 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-02-16 02:02:31,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-02-16 02:02:31,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:31,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174345406] [2023-02-16 02:02:31,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:31,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625859860] [2023-02-16 02:02:31,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625859860] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-16 02:02:31,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:02:31,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 15 [2023-02-16 02:02:31,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193128997] [2023-02-16 02:02:31,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:02:31,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:02:31,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:31,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:02:31,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-02-16 02:02:31,490 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-16 02:02:31,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:31,543 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2023-02-16 02:02:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:02:31,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 51 [2023-02-16 02:02:31,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:31,545 INFO L225 Difference]: With dead ends: 54 [2023-02-16 02:02:31,545 INFO L226 Difference]: Without dead ends: 52 [2023-02-16 02:02:31,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-02-16 02:02:31,546 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 6 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:31,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 132 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:02:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-16 02:02:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2023-02-16 02:02:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-16 02:02:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2023-02-16 02:02:31,560 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 51 [2023-02-16 02:02:31,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:31,561 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2023-02-16 02:02:31,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-16 02:02:31,561 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2023-02-16 02:02:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-16 02:02:31,565 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:31,565 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 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] [2023-02-16 02:02:31,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:31,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:31,771 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:31,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:31,773 INFO L85 PathProgramCache]: Analyzing trace with hash -670274197, now seen corresponding path program 1 times [2023-02-16 02:02:31,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:31,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861020729] [2023-02-16 02:02:31,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:31,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:31,782 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:31,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248752368] [2023-02-16 02:02:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:31,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:31,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:31,783 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:31,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 02:02:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:31,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-16 02:02:31,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-02-16 02:02:31,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:31,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:31,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861020729] [2023-02-16 02:02:31,965 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:31,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248752368] [2023-02-16 02:02:31,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248752368] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:02:31,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:02:31,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-16 02:02:31,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599842643] [2023-02-16 02:02:31,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:31,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-16 02:02:31,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-16 02:02:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-16 02:02:31,967 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-02-16 02:02:32,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:32,051 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2023-02-16 02:02:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 02:02:32,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2023-02-16 02:02:32,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:32,053 INFO L225 Difference]: With dead ends: 58 [2023-02-16 02:02:32,053 INFO L226 Difference]: Without dead ends: 56 [2023-02-16 02:02:32,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-02-16 02:02:32,055 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 12 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:32,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 118 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:02:32,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-02-16 02:02:32,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2023-02-16 02:02:32,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-16 02:02:32,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 67 transitions. [2023-02-16 02:02:32,070 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 67 transitions. Word has length 56 [2023-02-16 02:02:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:32,070 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 67 transitions. [2023-02-16 02:02:32,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-02-16 02:02:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2023-02-16 02:02:32,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-16 02:02:32,071 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:32,071 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1] [2023-02-16 02:02:32,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:32,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:32,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:32,277 INFO L85 PathProgramCache]: Analyzing trace with hash -759965185, now seen corresponding path program 1 times [2023-02-16 02:02:32,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:32,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28516888] [2023-02-16 02:02:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:32,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:32,285 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:32,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573748212] [2023-02-16 02:02:32,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:32,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:32,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:32,287 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) [2023-02-16 02:02:32,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 02:02:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:32,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 02:02:32,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-02-16 02:02:32,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-02-16 02:02:32,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:32,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28516888] [2023-02-16 02:02:32,447 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:32,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573748212] [2023-02-16 02:02:32,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573748212] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:32,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:32,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-02-16 02:02:32,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391071604] [2023-02-16 02:02:32,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:32,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-16 02:02:32,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:32,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-16 02:02:32,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-02-16 02:02:32,450 INFO L87 Difference]: Start difference. First operand 55 states and 67 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-02-16 02:02:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:32,638 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2023-02-16 02:02:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-16 02:02:32,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 65 [2023-02-16 02:02:32,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:32,641 INFO L225 Difference]: With dead ends: 102 [2023-02-16 02:02:32,641 INFO L226 Difference]: Without dead ends: 94 [2023-02-16 02:02:32,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-02-16 02:02:32,642 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 36 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:32,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 267 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:02:32,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-16 02:02:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 85. [2023-02-16 02:02:32,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 47 states have internal predecessors, (55), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-02-16 02:02:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 118 transitions. [2023-02-16 02:02:32,665 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 118 transitions. Word has length 65 [2023-02-16 02:02:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:32,666 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 118 transitions. [2023-02-16 02:02:32,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-02-16 02:02:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 118 transitions. [2023-02-16 02:02:32,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-02-16 02:02:32,668 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:32,669 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 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, 1, 1] [2023-02-16 02:02:32,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:32,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:32,876 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:32,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:32,876 INFO L85 PathProgramCache]: Analyzing trace with hash -696294669, now seen corresponding path program 1 times [2023-02-16 02:02:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:32,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476441256] [2023-02-16 02:02:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:32,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:32,885 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:32,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887982786] [2023-02-16 02:02:32,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:32,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:32,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:32,893 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) [2023-02-16 02:02:32,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 02:02:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:32,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-16 02:02:32,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:32,996 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-02-16 02:02:32,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-02-16 02:02:33,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:33,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476441256] [2023-02-16 02:02:33,078 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:33,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887982786] [2023-02-16 02:02:33,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887982786] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:33,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:33,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2023-02-16 02:02:33,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730692184] [2023-02-16 02:02:33,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:33,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 02:02:33,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:33,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 02:02:33,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-16 02:02:33,080 INFO L87 Difference]: Start difference. First operand 85 states and 118 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-02-16 02:02:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:33,164 INFO L93 Difference]: Finished difference Result 95 states and 130 transitions. [2023-02-16 02:02:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 02:02:33,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 71 [2023-02-16 02:02:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:33,166 INFO L225 Difference]: With dead ends: 95 [2023-02-16 02:02:33,166 INFO L226 Difference]: Without dead ends: 92 [2023-02-16 02:02:33,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-02-16 02:02:33,167 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 19 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:33,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 111 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:02:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-02-16 02:02:33,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-02-16 02:02:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2023-02-16 02:02:33,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 126 transitions. [2023-02-16 02:02:33,181 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 126 transitions. Word has length 71 [2023-02-16 02:02:33,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:33,182 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 126 transitions. [2023-02-16 02:02:33,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-02-16 02:02:33,182 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 126 transitions. [2023-02-16 02:02:33,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-02-16 02:02:33,182 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:33,183 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 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] [2023-02-16 02:02:33,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:33,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-02-16 02:02:33,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:33,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:33,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1352497678, now seen corresponding path program 2 times [2023-02-16 02:02:33,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:33,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87819460] [2023-02-16 02:02:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:33,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:33,396 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:33,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74554523] [2023-02-16 02:02:33,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 02:02:33,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:33,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:33,410 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) [2023-02-16 02:02:33,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 02:02:33,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 02:02:33,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:33,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-16 02:02:33,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 32 proven. 25 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-02-16 02:02:33,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-02-16 02:02:34,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:34,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87819460] [2023-02-16 02:02:34,065 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:34,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74554523] [2023-02-16 02:02:34,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74554523] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:34,065 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:34,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 19 [2023-02-16 02:02:34,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846992611] [2023-02-16 02:02:34,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:34,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-16 02:02:34,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:34,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-16 02:02:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-02-16 02:02:34,067 INFO L87 Difference]: Start difference. First operand 92 states and 126 transitions. Second operand has 19 states, 18 states have (on average 2.111111111111111) internal successors, (38), 16 states have internal predecessors, (38), 9 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2023-02-16 02:02:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:35,560 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2023-02-16 02:02:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-16 02:02:35,561 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.111111111111111) internal successors, (38), 16 states have internal predecessors, (38), 9 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) Word has length 76 [2023-02-16 02:02:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:35,562 INFO L225 Difference]: With dead ends: 134 [2023-02-16 02:02:35,562 INFO L226 Difference]: Without dead ends: 132 [2023-02-16 02:02:35,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=193, Invalid=863, Unknown=0, NotChecked=0, Total=1056 [2023-02-16 02:02:35,563 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 86 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:35,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 184 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-16 02:02:35,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-02-16 02:02:35,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 113. [2023-02-16 02:02:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 64 states have (on average 1.171875) internal successors, (75), 66 states have internal predecessors, (75), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2023-02-16 02:02:35,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 150 transitions. [2023-02-16 02:02:35,586 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 150 transitions. Word has length 76 [2023-02-16 02:02:35,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:35,587 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 150 transitions. [2023-02-16 02:02:35,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.111111111111111) internal successors, (38), 16 states have internal predecessors, (38), 9 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2023-02-16 02:02:35,587 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 150 transitions. [2023-02-16 02:02:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-16 02:02:35,587 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:35,588 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 6, 6, 2, 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] [2023-02-16 02:02:35,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:35,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:35,792 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:35,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:35,793 INFO L85 PathProgramCache]: Analyzing trace with hash -421153901, now seen corresponding path program 3 times [2023-02-16 02:02:35,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:35,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609604636] [2023-02-16 02:02:35,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:35,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:35,801 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:35,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68515226] [2023-02-16 02:02:35,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 02:02:35,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:35,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:35,817 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) [2023-02-16 02:02:35,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 02:02:35,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-16 02:02:35,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:35,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-16 02:02:35,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:36,141 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 46 proven. 8 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-02-16 02:02:36,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:36,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:36,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609604636] [2023-02-16 02:02:36,405 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:36,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68515226] [2023-02-16 02:02:36,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68515226] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:02:36,405 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:02:36,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-02-16 02:02:36,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186042451] [2023-02-16 02:02:36,406 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:36,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-16 02:02:36,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:36,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-16 02:02:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-02-16 02:02:36,407 INFO L87 Difference]: Start difference. First operand 113 states and 150 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-02-16 02:02:36,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:36,913 INFO L93 Difference]: Finished difference Result 149 states and 192 transitions. [2023-02-16 02:02:36,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 02:02:36,914 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 81 [2023-02-16 02:02:36,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:36,915 INFO L225 Difference]: With dead ends: 149 [2023-02-16 02:02:36,915 INFO L226 Difference]: Without dead ends: 147 [2023-02-16 02:02:36,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-02-16 02:02:36,916 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 31 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:36,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 153 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-16 02:02:36,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-02-16 02:02:36,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2023-02-16 02:02:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 83 states have (on average 1.1566265060240963) internal successors, (96), 85 states have internal predecessors, (96), 46 states have call successors, (46), 14 states have call predecessors, (46), 14 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-02-16 02:02:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2023-02-16 02:02:36,937 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 81 [2023-02-16 02:02:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:36,937 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2023-02-16 02:02:36,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-02-16 02:02:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2023-02-16 02:02:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-02-16 02:02:36,938 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:36,938 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 6, 6, 6, 2, 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, 1] [2023-02-16 02:02:36,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-02-16 02:02:37,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-16 02:02:37,143 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:37,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:37,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1712962370, now seen corresponding path program 1 times [2023-02-16 02:02:37,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:37,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416663710] [2023-02-16 02:02:37,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:37,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:37,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:37,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369783712] [2023-02-16 02:02:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:37,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:37,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:37,152 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) [2023-02-16 02:02:37,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-16 02:02:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:37,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-16 02:02:37,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 19 proven. 29 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-02-16 02:02:37,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-02-16 02:02:38,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:38,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416663710] [2023-02-16 02:02:38,108 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:38,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369783712] [2023-02-16 02:02:38,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369783712] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:38,108 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:38,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2023-02-16 02:02:38,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486158804] [2023-02-16 02:02:38,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:38,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-16 02:02:38,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:38,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-16 02:02:38,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2023-02-16 02:02:38,110 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand has 22 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 11 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-02-16 02:02:40,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:40,024 INFO L93 Difference]: Finished difference Result 248 states and 334 transitions. [2023-02-16 02:02:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-16 02:02:40,025 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 11 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 87 [2023-02-16 02:02:40,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:40,026 INFO L225 Difference]: With dead ends: 248 [2023-02-16 02:02:40,026 INFO L226 Difference]: Without dead ends: 194 [2023-02-16 02:02:40,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=1125, Unknown=0, NotChecked=0, Total=1406 [2023-02-16 02:02:40,027 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 95 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:40,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 308 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-16 02:02:40,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-02-16 02:02:40,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 193. [2023-02-16 02:02:40,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 107 states have (on average 1.1682242990654206) internal successors, (125), 109 states have internal predecessors, (125), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-02-16 02:02:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 264 transitions. [2023-02-16 02:02:40,068 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 264 transitions. Word has length 87 [2023-02-16 02:02:40,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:40,069 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 264 transitions. [2023-02-16 02:02:40,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 11 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-02-16 02:02:40,069 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 264 transitions. [2023-02-16 02:02:40,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-02-16 02:02:40,070 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:40,070 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:40,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:40,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-16 02:02:40,279 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:40,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:40,279 INFO L85 PathProgramCache]: Analyzing trace with hash -992204181, now seen corresponding path program 4 times [2023-02-16 02:02:40,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:40,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528926551] [2023-02-16 02:02:40,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:40,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:40,288 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:40,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022659143] [2023-02-16 02:02:40,288 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 02:02:40,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:40,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:40,333 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:40,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-16 02:02:40,379 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 02:02:40,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:40,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 02:02:40,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-02-16 02:02:40,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:02:40,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:40,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528926551] [2023-02-16 02:02:40,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:40,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022659143] [2023-02-16 02:02:40,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022659143] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:02:40,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:02:40,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:02:40,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775541395] [2023-02-16 02:02:40,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:02:40,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:02:40,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:40,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:02:40,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:02:40,401 INFO L87 Difference]: Start difference. First operand 193 states and 264 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-02-16 02:02:40,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:40,486 INFO L93 Difference]: Finished difference Result 259 states and 351 transitions. [2023-02-16 02:02:40,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:02:40,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 106 [2023-02-16 02:02:40,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:40,487 INFO L225 Difference]: With dead ends: 259 [2023-02-16 02:02:40,488 INFO L226 Difference]: Without dead ends: 172 [2023-02-16 02:02:40,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-16 02:02:40,489 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 7 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:40,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 145 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:02:40,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-02-16 02:02:40,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 160. [2023-02-16 02:02:40,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 92 states have internal predecessors, (101), 54 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-02-16 02:02:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 208 transitions. [2023-02-16 02:02:40,522 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 208 transitions. Word has length 106 [2023-02-16 02:02:40,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:40,523 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 208 transitions. [2023-02-16 02:02:40,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-02-16 02:02:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 208 transitions. [2023-02-16 02:02:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-02-16 02:02:40,524 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:40,524 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:40,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:40,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-16 02:02:40,728 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:40,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:40,729 INFO L85 PathProgramCache]: Analyzing trace with hash -397785577, now seen corresponding path program 1 times [2023-02-16 02:02:40,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:40,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336041237] [2023-02-16 02:02:40,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:40,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:40,745 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:40,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556044831] [2023-02-16 02:02:40,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:40,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:40,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:40,755 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:40,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-16 02:02:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:02:40,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 02:02:40,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 154 proven. 18 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-02-16 02:02:40,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:41,055 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-02-16 02:02:41,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:41,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336041237] [2023-02-16 02:02:41,055 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:41,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556044831] [2023-02-16 02:02:41,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556044831] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:41,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:41,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-02-16 02:02:41,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268206478] [2023-02-16 02:02:41,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:41,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-16 02:02:41,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:41,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-16 02:02:41,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-02-16 02:02:41,057 INFO L87 Difference]: Start difference. First operand 160 states and 208 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2023-02-16 02:02:41,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:41,416 INFO L93 Difference]: Finished difference Result 201 states and 260 transitions. [2023-02-16 02:02:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-16 02:02:41,416 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) Word has length 123 [2023-02-16 02:02:41,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:41,417 INFO L225 Difference]: With dead ends: 201 [2023-02-16 02:02:41,417 INFO L226 Difference]: Without dead ends: 158 [2023-02-16 02:02:41,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2023-02-16 02:02:41,418 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 31 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:41,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 270 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 02:02:41,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-02-16 02:02:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2023-02-16 02:02:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 87 states have (on average 1.103448275862069) internal successors, (96), 89 states have internal predecessors, (96), 54 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-02-16 02:02:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 203 transitions. [2023-02-16 02:02:41,450 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 203 transitions. Word has length 123 [2023-02-16 02:02:41,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:41,450 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 203 transitions. [2023-02-16 02:02:41,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2023-02-16 02:02:41,451 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 203 transitions. [2023-02-16 02:02:41,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-02-16 02:02:41,452 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:41,452 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:41,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:41,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-16 02:02:41,656 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:41,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:41,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1098112047, now seen corresponding path program 2 times [2023-02-16 02:02:41,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:41,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446921129] [2023-02-16 02:02:41,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:41,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:41,664 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:41,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28453223] [2023-02-16 02:02:41,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 02:02:41,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:41,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:41,665 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:41,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-16 02:02:41,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 02:02:41,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:41,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-16 02:02:41,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 183 proven. 35 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-02-16 02:02:41,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 45 proven. 35 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-02-16 02:02:42,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:42,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446921129] [2023-02-16 02:02:42,010 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:42,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28453223] [2023-02-16 02:02:42,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28453223] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:42,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:42,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2023-02-16 02:02:42,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164834125] [2023-02-16 02:02:42,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:42,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-16 02:02:42,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:42,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-16 02:02:42,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-02-16 02:02:42,014 INFO L87 Difference]: Start difference. First operand 157 states and 203 transitions. Second operand has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) [2023-02-16 02:02:42,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:42,553 INFO L93 Difference]: Finished difference Result 218 states and 282 transitions. [2023-02-16 02:02:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-16 02:02:42,553 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) Word has length 125 [2023-02-16 02:02:42,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:42,554 INFO L225 Difference]: With dead ends: 218 [2023-02-16 02:02:42,554 INFO L226 Difference]: Without dead ends: 164 [2023-02-16 02:02:42,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=246, Invalid=810, Unknown=0, NotChecked=0, Total=1056 [2023-02-16 02:02:42,555 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 82 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:42,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 387 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 02:02:42,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-02-16 02:02:42,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 163. [2023-02-16 02:02:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 89 states have (on average 1.0898876404494382) internal successors, (97), 91 states have internal predecessors, (97), 58 states have call successors, (58), 15 states have call predecessors, (58), 15 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-02-16 02:02:42,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 212 transitions. [2023-02-16 02:02:42,590 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 212 transitions. Word has length 125 [2023-02-16 02:02:42,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:42,590 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 212 transitions. [2023-02-16 02:02:42,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) [2023-02-16 02:02:42,590 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 212 transitions. [2023-02-16 02:02:42,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-02-16 02:02:42,591 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:42,591 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:42,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:42,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:42,795 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:42,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:42,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1816082155, now seen corresponding path program 2 times [2023-02-16 02:02:42,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:42,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031229483] [2023-02-16 02:02:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:42,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:42,803 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:42,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7372527] [2023-02-16 02:02:42,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 02:02:42,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:42,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:42,818 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:42,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-16 02:02:42,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 02:02:42,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:42,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 74 conjunts are in the unsatisfiable core [2023-02-16 02:02:42,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 79 proven. 65 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2023-02-16 02:02:43,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:44,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:44,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031229483] [2023-02-16 02:02:44,910 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:44,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7372527] [2023-02-16 02:02:44,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7372527] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:02:44,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:02:44,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-02-16 02:02:44,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229580578] [2023-02-16 02:02:44,910 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:44,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-16 02:02:44,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:44,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-16 02:02:44,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2023-02-16 02:02:44,912 INFO L87 Difference]: Start difference. First operand 163 states and 212 transitions. Second operand has 21 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 10 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2023-02-16 02:02:45,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:45,656 INFO L93 Difference]: Finished difference Result 233 states and 294 transitions. [2023-02-16 02:02:45,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-16 02:02:45,656 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 10 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) Word has length 134 [2023-02-16 02:02:45,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:45,658 INFO L225 Difference]: With dead ends: 233 [2023-02-16 02:02:45,658 INFO L226 Difference]: Without dead ends: 130 [2023-02-16 02:02:45,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=272, Invalid=1368, Unknown=0, NotChecked=0, Total=1640 [2023-02-16 02:02:45,665 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 42 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:45,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 205 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-16 02:02:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-02-16 02:02:45,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-02-16 02:02:45,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 71 states have (on average 1.0845070422535212) internal successors, (77), 73 states have internal predecessors, (77), 46 states have call successors, (46), 12 states have call predecessors, (46), 12 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-02-16 02:02:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 168 transitions. [2023-02-16 02:02:45,694 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 168 transitions. Word has length 134 [2023-02-16 02:02:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:45,695 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 168 transitions. [2023-02-16 02:02:45,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 10 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2023-02-16 02:02:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 168 transitions. [2023-02-16 02:02:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-02-16 02:02:45,696 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:45,696 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:45,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:45,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-16 02:02:45,901 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:45,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:45,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1812352379, now seen corresponding path program 3 times [2023-02-16 02:02:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:45,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767626078] [2023-02-16 02:02:45,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:45,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:45,915 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:45,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942776812] [2023-02-16 02:02:45,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 02:02:45,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:45,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:45,919 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:45,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-16 02:02:45,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-16 02:02:45,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:45,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-16 02:02:45,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 922 backedges. 104 proven. 43 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2023-02-16 02:02:46,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:49,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:49,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767626078] [2023-02-16 02:02:49,114 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:49,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942776812] [2023-02-16 02:02:49,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942776812] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:02:49,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:02:49,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-02-16 02:02:49,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551309831] [2023-02-16 02:02:49,114 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:49,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-16 02:02:49,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:49,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-16 02:02:49,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=430, Unknown=1, NotChecked=0, Total=506 [2023-02-16 02:02:49,115 INFO L87 Difference]: Start difference. First operand 130 states and 168 transitions. Second operand has 15 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 6 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2023-02-16 02:02:49,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:49,540 INFO L93 Difference]: Finished difference Result 156 states and 202 transitions. [2023-02-16 02:02:49,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-16 02:02:49,540 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 6 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) Word has length 153 [2023-02-16 02:02:49,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:49,541 INFO L225 Difference]: With dead ends: 156 [2023-02-16 02:02:49,541 INFO L226 Difference]: Without dead ends: 146 [2023-02-16 02:02:49,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=128, Invalid=683, Unknown=1, NotChecked=0, Total=812 [2023-02-16 02:02:49,542 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 36 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:49,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 122 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 02:02:49,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-02-16 02:02:49,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 127. [2023-02-16 02:02:49,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 70 states have internal predecessors, (72), 46 states have call successors, (46), 12 states have call predecessors, (46), 12 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-02-16 02:02:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2023-02-16 02:02:49,570 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 153 [2023-02-16 02:02:49,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:49,570 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2023-02-16 02:02:49,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 6 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2023-02-16 02:02:49,570 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2023-02-16 02:02:49,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-02-16 02:02:49,571 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:49,571 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:49,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:49,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-16 02:02:49,776 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:49,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:49,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1713157838, now seen corresponding path program 3 times [2023-02-16 02:02:49,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:49,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301049088] [2023-02-16 02:02:49,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:49,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:49,784 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:49,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365810030] [2023-02-16 02:02:49,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 02:02:49,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:49,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:49,785 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:49,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-16 02:02:49,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-16 02:02:49,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:49,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 51 conjunts are in the unsatisfiable core [2023-02-16 02:02:49,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 173 proven. 45 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2023-02-16 02:02:51,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:52,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301049088] [2023-02-16 02:02:52,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:52,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365810030] [2023-02-16 02:02:52,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365810030] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:02:52,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:02:52,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-02-16 02:02:52,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511285169] [2023-02-16 02:02:52,171 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:52,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-16 02:02:52,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:52,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-16 02:02:52,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2023-02-16 02:02:52,172 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 17 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-16 02:02:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:52,971 INFO L93 Difference]: Finished difference Result 152 states and 196 transitions. [2023-02-16 02:02:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-16 02:02:52,972 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 191 [2023-02-16 02:02:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:52,986 INFO L225 Difference]: With dead ends: 152 [2023-02-16 02:02:52,986 INFO L226 Difference]: Without dead ends: 150 [2023-02-16 02:02:52,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2023-02-16 02:02:52,986 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 31 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:52,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 168 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-16 02:02:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-02-16 02:02:53,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2023-02-16 02:02:53,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 79 states have (on average 1.0632911392405062) internal successors, (84), 80 states have internal predecessors, (84), 55 states have call successors, (55), 14 states have call predecessors, (55), 14 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-02-16 02:02:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 193 transitions. [2023-02-16 02:02:53,027 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 193 transitions. Word has length 191 [2023-02-16 02:02:53,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:53,027 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 193 transitions. [2023-02-16 02:02:53,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-16 02:02:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 193 transitions. [2023-02-16 02:02:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-02-16 02:02:53,033 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:53,033 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:53,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:53,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-16 02:02:53,238 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash -4467526, now seen corresponding path program 4 times [2023-02-16 02:02:53,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:53,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954385241] [2023-02-16 02:02:53,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:53,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:53,247 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:53,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416005932] [2023-02-16 02:02:53,247 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 02:02:53,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:53,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:53,248 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:53,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-16 02:02:53,337 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 02:02:53,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:53,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-16 02:02:53,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:53,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2875 backedges. 95 proven. 215 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2023-02-16 02:02:53,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:53,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2875 backedges. 131 proven. 179 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2023-02-16 02:02:53,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:53,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954385241] [2023-02-16 02:02:53,958 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:53,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416005932] [2023-02-16 02:02:53,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416005932] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:53,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:53,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2023-02-16 02:02:53,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499144060] [2023-02-16 02:02:53,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:53,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-02-16 02:02:53,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-02-16 02:02:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=777, Unknown=0, NotChecked=0, Total=930 [2023-02-16 02:02:53,962 INFO L87 Difference]: Start difference. First operand 149 states and 193 transitions. Second operand has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 31 states have internal predecessors, (69), 24 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 22 states have call predecessors, (84), 23 states have call successors, (84) [2023-02-16 02:02:55,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:55,619 INFO L93 Difference]: Finished difference Result 253 states and 342 transitions. [2023-02-16 02:02:55,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-16 02:02:55,620 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 31 states have internal predecessors, (69), 24 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 22 states have call predecessors, (84), 23 states have call successors, (84) Word has length 244 [2023-02-16 02:02:55,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:55,621 INFO L225 Difference]: With dead ends: 253 [2023-02-16 02:02:55,621 INFO L226 Difference]: Without dead ends: 180 [2023-02-16 02:02:55,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 456 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2023-02-16 02:02:55,623 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 155 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:55,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 590 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-16 02:02:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-02-16 02:02:55,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 179. [2023-02-16 02:02:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 89 states have (on average 1.0561797752808988) internal successors, (94), 90 states have internal predecessors, (94), 75 states have call successors, (75), 14 states have call predecessors, (75), 14 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-02-16 02:02:55,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 243 transitions. [2023-02-16 02:02:55,680 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 243 transitions. Word has length 244 [2023-02-16 02:02:55,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:55,683 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 243 transitions. [2023-02-16 02:02:55,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 31 states have internal predecessors, (69), 24 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 22 states have call predecessors, (84), 23 states have call successors, (84) [2023-02-16 02:02:55,683 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 243 transitions. [2023-02-16 02:02:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-02-16 02:02:55,685 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:02:55,685 INFO L195 NwaCegarLoop]: trace histogram [57, 56, 56, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:02:55,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:55,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-16 02:02:55,886 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:02:55,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:02:55,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1197668035, now seen corresponding path program 5 times [2023-02-16 02:02:55,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:02:55,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026869823] [2023-02-16 02:02:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:02:55,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:02:55,897 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:02:55,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [901358364] [2023-02-16 02:02:55,897 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 02:02:55,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:55,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:02:55,898 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:02:55,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-16 02:02:56,044 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2023-02-16 02:02:56,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:02:56,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-16 02:02:56,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:02:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 6885 backedges. 180 proven. 230 refuted. 0 times theorem prover too weak. 6475 trivial. 0 not checked. [2023-02-16 02:02:56,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:02:56,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6885 backedges. 120 proven. 290 refuted. 0 times theorem prover too weak. 6475 trivial. 0 not checked. [2023-02-16 02:02:56,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:02:56,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026869823] [2023-02-16 02:02:56,497 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:02:56,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901358364] [2023-02-16 02:02:56,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901358364] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:02:56,497 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:02:56,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2023-02-16 02:02:56,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055530907] [2023-02-16 02:02:56,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:02:56,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-16 02:02:56,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:02:56,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-16 02:02:56,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-02-16 02:02:56,499 INFO L87 Difference]: Start difference. First operand 179 states and 243 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 14 states have internal predecessors, (45), 12 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 11 states have call predecessors, (41), 11 states have call successors, (41) [2023-02-16 02:02:56,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:02:56,916 INFO L93 Difference]: Finished difference Result 187 states and 249 transitions. [2023-02-16 02:02:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-16 02:02:56,916 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 14 states have internal predecessors, (45), 12 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 11 states have call predecessors, (41), 11 states have call successors, (41) Word has length 354 [2023-02-16 02:02:56,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:02:56,918 INFO L225 Difference]: With dead ends: 187 [2023-02-16 02:02:56,918 INFO L226 Difference]: Without dead ends: 0 [2023-02-16 02:02:56,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 688 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2023-02-16 02:02:56,919 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 37 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:02:56,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 273 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 02:02:56,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-16 02:02:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-16 02:02:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:02:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-16 02:02:56,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 354 [2023-02-16 02:02:56,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:02:56,920 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 02:02:56,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 14 states have internal predecessors, (45), 12 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 11 states have call predecessors, (41), 11 states have call successors, (41) [2023-02-16 02:02:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-16 02:02:56,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-16 02:02:56,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-16 02:02:56,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-16 02:02:57,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:02:57,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-16 02:03:08,385 WARN L233 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 159 DAG size of output: 81 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-02-16 02:03:15,681 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (let ((.cse13 (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)))) (let ((.cse0 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse9 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|)))) (.cse10 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|))) (.cse11 (<= 1 |ULTIMATE.start_main_~a~0#1|)) (.cse12 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| .cse13)) (.cse4 (< |ULTIMATE.start_main_~yy~0#1| 2147483647)) (.cse5 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (not (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse8 (= |ULTIMATE.start_main_~p~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~s~0#1| 0) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~k~0#1| 0) .cse4 .cse5 (= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse11 .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 (= |ULTIMATE.start_main_~k~0#1| 2) (<= |ULTIMATE.start_main_~b~0#1| 1) .cse8) (and (or (< (* 3 |ULTIMATE.start_main_~c~0#1|) (+ (* 4 |ULTIMATE.start_main_~b~0#1|) 1)) (< (* 2 |ULTIMATE.start_main_~b~0#1|) 4)) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~c~0#1|) .cse13) .cse10 (<= |ULTIMATE.start_main_~x~0#1| 2) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 2) .cse6 (= |ULTIMATE.start_main_~s~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|)) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~k~0#1| 1) .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= 1 |ULTIMATE.start_main_~c~0#1|))))) [2023-02-16 02:03:15,681 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse13 (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)))) (let ((.cse0 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse9 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|)))) (.cse10 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|))) (.cse11 (<= 1 |ULTIMATE.start_main_~a~0#1|)) (.cse12 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| .cse13)) (.cse4 (< |ULTIMATE.start_main_~yy~0#1| 2147483647)) (.cse5 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (not (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse8 (= |ULTIMATE.start_main_~p~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~s~0#1| 0) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~k~0#1| 0) .cse4 .cse5 (= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse11 .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 (= |ULTIMATE.start_main_~k~0#1| 2) (<= |ULTIMATE.start_main_~b~0#1| 1) .cse8) (and (or (< (* 3 |ULTIMATE.start_main_~c~0#1|) (+ (* 4 |ULTIMATE.start_main_~b~0#1|) 1)) (< (* 2 |ULTIMATE.start_main_~b~0#1|) 4)) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~c~0#1|) .cse13) .cse10 (<= |ULTIMATE.start_main_~x~0#1| 2) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 2) .cse6 (= |ULTIMATE.start_main_~s~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|)) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~k~0#1| 1) .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= 1 |ULTIMATE.start_main_~c~0#1|))))) [2023-02-16 02:03:15,682 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 18 74) the Hoare annotation is: true [2023-02-16 02:03:15,682 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-16 02:03:15,682 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-16 02:03:15,682 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-02-16 02:03:15,682 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-02-16 02:03:15,682 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (let ((.cse13 (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)))) (let ((.cse0 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse9 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|)))) (.cse10 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|))) (.cse11 (<= 1 |ULTIMATE.start_main_~a~0#1|)) (.cse12 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| .cse13)) (.cse4 (< |ULTIMATE.start_main_~yy~0#1| 2147483647)) (.cse5 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (not (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse8 (= |ULTIMATE.start_main_~p~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~s~0#1| 0) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~k~0#1| 0) .cse4 .cse5 (= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse11 .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 (= |ULTIMATE.start_main_~k~0#1| 2) (<= |ULTIMATE.start_main_~b~0#1| 1) .cse8) (and (or (< (* 3 |ULTIMATE.start_main_~c~0#1|) (+ (* 4 |ULTIMATE.start_main_~b~0#1|) 1)) (< (* 2 |ULTIMATE.start_main_~b~0#1|) 4)) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~c~0#1|) .cse13) .cse10 (<= |ULTIMATE.start_main_~x~0#1| 2) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 2) .cse6 (= |ULTIMATE.start_main_~s~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|)) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~k~0#1| 1) .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= 1 |ULTIMATE.start_main_~c~0#1|))))) [2023-02-16 02:03:15,682 INFO L895 garLoopResultBuilder]: At program point L41-1(lines 41 68) the Hoare annotation is: (let ((.cse8 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))) (let ((.cse13 (+ .cse8 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|))) (.cse16 (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)))) (let ((.cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~c~0#1| 2)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse0 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse15 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse6 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse7 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse12 (<= (* 3 |ULTIMATE.start_main_~c~0#1|) 0)) (.cse9 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse5 (= |ULTIMATE.start_main_~a~0#1| .cse16)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse2 (= |ULTIMATE.start_main_~b~0#1| .cse13)) (.cse4 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse10 (<= 0 |ULTIMATE.start_main_~b~0#1|))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~a~0#1| 2) .cse2 (<= 0 |ULTIMATE.start_main_~y~0#1|) .cse3 .cse4 .cse5 .cse6 .cse7 (= (+ .cse8 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~b~0#1|) .cse9 (< (* 3 |ULTIMATE.start_main_~b~0#1|) (+ |ULTIMATE.start_main_~a~0#1| 1)) .cse10) (and .cse5 .cse11 .cse7 .cse9 .cse12 .cse3 .cse4 (= 0 .cse13) (<= 1 |ULTIMATE.start_main_~y~0#1|) .cse10) (and .cse0 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse1 (= |ULTIMATE.start_main_~s~0#1| 0) .cse14 .cse15 .cse5 (< |ULTIMATE.start_main_~yy~0#1| 2147483647) .cse11 .cse7 .cse9 (not (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 1) (= |ULTIMATE.start_main_~p~0#1| 0)) (and .cse0 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse15 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse6 (<= |ULTIMATE.start_main_~b~0#1| 2) .cse7 .cse12 (= |ULTIMATE.start_main_~s~0#1| 1)) (and (or .cse9 (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~c~0#1|) .cse16)) .cse5 (not (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)) .cse14 (= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~x~0#1|) .cse2 .cse4 .cse10))))) [2023-02-16 02:03:15,683 INFO L895 garLoopResultBuilder]: At program point L41-2(lines 41 68) the Hoare annotation is: (let ((.cse3 (* 2 |ULTIMATE.start_main_~b~0#1|)) (.cse1 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1|)) (.cse2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse0 (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|))) (.cse4 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse5 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|))) (and (= |ULTIMATE.start_main_~a~0#1| .cse0) (or (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) (= (+ .cse1 .cse2 |ULTIMATE.start_main_~c~0#1|) .cse0)) (<= |ULTIMATE.start_main_~y~0#1| 2) (or (<= .cse3 |ULTIMATE.start_main_~a~0#1|) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|))) (or (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (<= .cse3 |ULTIMATE.start_main_~c~0#1|) (= (+ .cse4 .cse5 .cse1 .cse2) .cse0)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= 0 (+ .cse4 .cse5)))) [2023-02-16 02:03:15,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-16 02:03:15,683 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-02-16 02:03:15,683 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse14 (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)))) (let ((.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse5 (<= 1 |ULTIMATE.start_main_~a~0#1|)) (.cse0 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse3 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|)))) (.cse4 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|))) (.cse6 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse7 (= |ULTIMATE.start_main_~a~0#1| .cse14)) (.cse8 (< |ULTIMATE.start_main_~yy~0#1| 2147483647)) (.cse9 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse10 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse11 (not (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse12 (<= |ULTIMATE.start_main_~b~0#1| 1)) (.cse13 (= |ULTIMATE.start_main_~p~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~k~0#1| 2) .cse12 .cse13) (and (or (< (* 3 |ULTIMATE.start_main_~c~0#1|) (+ (* 4 |ULTIMATE.start_main_~b~0#1|) 1)) (< (* 2 |ULTIMATE.start_main_~b~0#1|) 4)) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~c~0#1|) .cse14) .cse4 (<= |ULTIMATE.start_main_~x~0#1| 2) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 2) .cse10 (= |ULTIMATE.start_main_~s~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~k~0#1| 1) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse13 (<= 1 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 .cse2 .cse3 .cse4 .cse6 .cse7 (= |ULTIMATE.start_main_~k~0#1| 0) .cse8 (= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse11 .cse12 .cse13)))) [2023-02-16 02:03:15,683 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 43) no Hoare annotation was computed. [2023-02-16 02:03:15,683 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-16 02:03:15,683 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|))) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2) (<= 1 |ULTIMATE.start_main_~y~0#1|)) [2023-02-16 02:03:15,683 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (and (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 2) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (* 3 |ULTIMATE.start_main_~c~0#1|) 0) (= |ULTIMATE.start_main_~s~0#1| 1)) [2023-02-16 02:03:15,683 INFO L895 garLoopResultBuilder]: At program point L38-1(line 38) the Hoare annotation is: (and (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 2) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (* 3 |ULTIMATE.start_main_~c~0#1|) 0) (= |ULTIMATE.start_main_~s~0#1| 1)) [2023-02-16 02:03:15,683 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-16 02:03:15,683 INFO L902 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: true [2023-02-16 02:03:15,683 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-16 02:03:15,683 INFO L899 garLoopResultBuilder]: For program point L51(lines 47 56) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 56) the Hoare annotation is: (let ((.cse13 (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)))) (let ((.cse0 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse9 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|)))) (.cse10 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|))) (.cse11 (<= 1 |ULTIMATE.start_main_~a~0#1|)) (.cse12 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| .cse13)) (.cse4 (< |ULTIMATE.start_main_~yy~0#1| 2147483647)) (.cse5 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (not (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse8 (= |ULTIMATE.start_main_~p~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~s~0#1| 0) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~k~0#1| 0) .cse4 .cse5 (= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse11 .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 (= |ULTIMATE.start_main_~k~0#1| 2) (<= |ULTIMATE.start_main_~b~0#1| 1) .cse8) (and (or (< (* 3 |ULTIMATE.start_main_~c~0#1|) (+ (* 4 |ULTIMATE.start_main_~b~0#1|) 1)) (< (* 2 |ULTIMATE.start_main_~b~0#1|) 4)) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~c~0#1|) .cse13) .cse10 (<= |ULTIMATE.start_main_~x~0#1| 2) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 2) .cse6 (= |ULTIMATE.start_main_~s~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|)) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~k~0#1| 1) .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= 1 |ULTIMATE.start_main_~c~0#1|))))) [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 56) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 16) the Hoare annotation is: true [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2023-02-16 02:03:15,684 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-02-16 02:03:15,686 INFO L445 BasicCegarLoop]: Path program histogram: [5, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:03:15,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 02:03:15,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 02:03:15 BoogieIcfgContainer [2023-02-16 02:03:15,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 02:03:15,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 02:03:15,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 02:03:15,707 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 02:03:15,708 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:02:28" (3/4) ... [2023-02-16 02:03:15,710 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-16 02:03:15,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-16 02:03:15,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-16 02:03:15,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-16 02:03:15,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-16 02:03:15,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-16 02:03:15,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-16 02:03:15,754 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-16 02:03:15,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 02:03:15,755 INFO L158 Benchmark]: Toolchain (without parser) took 47733.93ms. Allocated memory was 130.0MB in the beginning and 211.8MB in the end (delta: 81.8MB). Free memory was 83.3MB in the beginning and 89.7MB in the end (delta: -6.4MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. [2023-02-16 02:03:15,755 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory was 99.7MB in the beginning and 99.6MB in the end (delta: 75.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 02:03:15,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.96ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 72.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-16 02:03:15,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.55ms. Allocated memory is still 130.0MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 02:03:15,756 INFO L158 Benchmark]: Boogie Preprocessor took 21.14ms. Allocated memory is still 130.0MB. Free memory was 70.6MB in the beginning and 69.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 02:03:15,756 INFO L158 Benchmark]: RCFGBuilder took 320.13ms. Allocated memory is still 130.0MB. Free memory was 69.3MB in the beginning and 57.5MB in the end (delta: 11.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-16 02:03:15,756 INFO L158 Benchmark]: TraceAbstraction took 47126.14ms. Allocated memory was 130.0MB in the beginning and 211.8MB in the end (delta: 81.8MB). Free memory was 56.8MB in the beginning and 92.8MB in the end (delta: -36.0MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2023-02-16 02:03:15,756 INFO L158 Benchmark]: Witness Printer took 47.63ms. Allocated memory is still 211.8MB. Free memory was 92.8MB in the beginning and 89.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 02:03:15,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory was 99.7MB in the beginning and 99.6MB in the end (delta: 75.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.96ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 72.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.55ms. Allocated memory is still 130.0MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.14ms. Allocated memory is still 130.0MB. Free memory was 70.6MB in the beginning and 69.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 320.13ms. Allocated memory is still 130.0MB. Free memory was 69.3MB in the beginning and 57.5MB in the end (delta: 11.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 47126.14ms. Allocated memory was 130.0MB in the beginning and 211.8MB in the end (delta: 81.8MB). Free memory was 56.8MB in the beginning and 92.8MB in the end (delta: -36.0MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. * Witness Printer took 47.63ms. Allocated memory is still 211.8MB. Free memory was 92.8MB in the beginning and 89.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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 3 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.0s, OverallIterations: 19, TraceHistogramMax: 57, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 18.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 833 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 756 mSDsluCounter, 3830 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2991 mSDsCounter, 899 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7048 IncrementalHoareTripleChecker+Invalid, 7947 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 899 mSolverCounterUnsat, 839 mSDtfsCounter, 7048 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3631 GetRequests, 3215 SyntacticMatches, 22 SemanticMatches, 394 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1981 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=11, InterpolantAutomatonStates: 242, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 77 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 237 PreInvPairs, 341 NumberOfFragments, 1845 HoareAnnotationTreeSize, 237 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 22709 FormulaSimplificationTreeSizeReductionInter, 18.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 12.6s InterpolantComputationTime, 2122 NumberOfCodeBlocks, 1849 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 3330 ConstructedInterpolants, 0 QuantifiedInterpolants, 12653 SizeOfPredicates, 163 NumberOfNonLiveVariables, 4353 ConjunctsInSsa, 516 ConjunctsInUnsatCore, 30 InterpolantComputations, 4 PerfectInterpolantSequences, 25554/26917 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((xy == y * x && a == y) && s == 0) && b == x) && q == 1) && a == x * p + y * r) && k == 0) && yy < 2147483647) && y <= 2) && c == y) && 1 <= x) && !(y <= x)) && p == 0) || ((((((((((((((xy == y * x && a == y) && q == 1) && b == y * s + x * q) && a == k * b + c) && 1 <= a) && 1 <= b) && a == x * p + y * r) && yy < 2147483647) && y <= 2) && 1 <= x) && !(y <= x)) && k == 2) && b <= 1) && p == 0)) || (((((((((((((((3 * c < 4 * b + 1 || 2 * b < 4) && xy == y * x) && p == 1) && r == 0) && q == 0) && x * k * q + y * k * s + c == x * p + y * r) && a == k * b + c) && x <= 2) && b == y) && 0 <= c) && yy == y * y) && b <= 2) && 1 <= x) && s == 1) && 1 <= y)) || ((((((((((((((xy == y * x && a == y) && q == 1) && b == y * s + x * q) && a == k * b + c) && 1 <= a) && k == 1) && 1 <= b) && a == x * p + y * r) && yy < 2147483647) && y <= 2) && 1 <= x) && !(y <= x)) && p == 0) && 1 <= c) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: ((((((((((((((((xy == y * x && c <= 2) && a <= 2) && b == y * s + x * q) && 0 <= y) && b + 1 <= a) && x <= 2) && a == x * p + y * r) && yy == y * y) && 1 <= x) && y * s + x == b) && b <= c) && 3 * b < a + 1) && 0 <= b) || (((((((((a == x * p + y * r && y <= 2) && 1 <= x) && b <= c) && 3 * c <= 0) && b + 1 <= a) && x <= 2) && 0 == y * s + x * q) && 1 <= y) && 0 <= b)) || (((((((((((((xy == y * x && a == y) && c <= 2) && s == 0) && q == 1) && 1 <= b) && a == x * p + y * r) && yy < 2147483647) && y <= 2) && 1 <= x) && b <= c) && !(y <= x)) && b <= 1) && p == 0)) || (((((((((((((xy == y * x && a == x) && p == 1) && r == 0) && q == 0) && x <= 2) && b == y) && 1 <= b) && 0 <= c) && yy == y * y) && b <= 2) && 1 <= x) && 3 * c <= 0) && s == 1)) || ((((((((b <= c || x * k * q + y * k * s + c == x * p + y * r) && a == x * p + y * r) && !(y <= b)) && q == 1) && y + b == x) && b == y * s + x * q) && x <= 2) && 0 <= b) RESULT: Ultimate proved your program to be correct! [2023-02-16 02:03:15,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE