./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/egcd-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 e89b4ab54b22145b4041cfb458aca993f2d791ac86940dcd03d48a90a5273393 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 17:13:32,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 17:13:32,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 17:13:32,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 17:13:32,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 17:13:32,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 17:13:32,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 17:13:32,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 17:13:32,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 17:13:32,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 17:13:32,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 17:13:32,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 17:13:32,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 17:13:32,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 17:13:32,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 17:13:32,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 17:13:32,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 17:13:32,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 17:13:32,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 17:13:32,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 17:13:32,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 17:13:32,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 17:13:32,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 17:13:32,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 17:13:32,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 17:13:32,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 17:13:32,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 17:13:32,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 17:13:32,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 17:13:32,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 17:13:32,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 17:13:32,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 17:13:32,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 17:13:32,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 17:13:32,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 17:13:32,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 17:13:32,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 17:13:32,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 17:13:32,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 17:13:32,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 17:13:32,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 17:13:32,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 17:13:32,422 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 17:13:32,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 17:13:32,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 17:13:32,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 17:13:32,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 17:13:32,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 17:13:32,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 17:13:32,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 17:13:32,424 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 17:13:32,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 17:13:32,425 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 17:13:32,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 17:13:32,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 17:13:32,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 17:13:32,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 17:13:32,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 17:13:32,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 17:13:32,426 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 17:13:32,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 17:13:32,426 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 17:13:32,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 17:13:32,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 17:13:32,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 17:13:32,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 17:13:32,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 17:13:32,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 17:13:32,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 17:13:32,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 17:13:32,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 17:13:32,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 17:13:32,429 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 17:13:32,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 17:13:32,429 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 17:13:32,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 17:13:32,429 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 17:13:32,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e89b4ab54b22145b4041cfb458aca993f2d791ac86940dcd03d48a90a5273393 [2023-02-18 17:13:32,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 17:13:32,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 17:13:32,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 17:13:32,647 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 17:13:32,647 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 17:13:32,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2023-02-18 17:13:33,653 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 17:13:33,812 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 17:13:33,813 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2023-02-18 17:13:33,817 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2132531/1c3d51d07fb1458c8fba18fa1a7645f6/FLAG9ed50514b [2023-02-18 17:13:33,826 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2132531/1c3d51d07fb1458c8fba18fa1a7645f6 [2023-02-18 17:13:33,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 17:13:33,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 17:13:33,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 17:13:33,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 17:13:33,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 17:13:33,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:13:33" (1/1) ... [2023-02-18 17:13:33,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d315ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:33, skipping insertion in model container [2023-02-18 17:13:33,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:13:33" (1/1) ... [2023-02-18 17:13:33,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 17:13:33,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 17:13:33,939 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/egcd-ll_valuebound2.c[489,502] [2023-02-18 17:13:33,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 17:13:33,970 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 17:13:33,979 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/egcd-ll_valuebound2.c[489,502] [2023-02-18 17:13:33,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 17:13:34,005 INFO L208 MainTranslator]: Completed translation [2023-02-18 17:13:34,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34 WrapperNode [2023-02-18 17:13:34,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 17:13:34,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 17:13:34,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 17:13:34,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 17:13:34,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,025 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-02-18 17:13:34,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 17:13:34,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 17:13:34,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 17:13:34,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 17:13:34,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 17:13:34,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 17:13:34,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 17:13:34,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 17:13:34,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (1/1) ... [2023-02-18 17:13:34,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 17:13:34,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:34,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 17:13:34,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 17:13:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 17:13:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 17:13:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 17:13:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 17:13:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 17:13:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 17:13:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 17:13:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 17:13:34,153 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 17:13:34,155 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 17:13:34,284 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 17:13:34,289 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 17:13:34,290 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 17:13:34,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:13:34 BoogieIcfgContainer [2023-02-18 17:13:34,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 17:13:34,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 17:13:34,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 17:13:34,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 17:13:34,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 05:13:33" (1/3) ... [2023-02-18 17:13:34,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f3d2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:13:34, skipping insertion in model container [2023-02-18 17:13:34,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:34" (2/3) ... [2023-02-18 17:13:34,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f3d2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:13:34, skipping insertion in model container [2023-02-18 17:13:34,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:13:34" (3/3) ... [2023-02-18 17:13:34,299 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound2.c [2023-02-18 17:13:34,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 17:13:34,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 17:13:34,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 17:13:34,362 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;@592819a8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 17:13:34,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 17:13:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-18 17:13:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 17:13:34,370 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:34,370 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:34,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:34,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:34,375 INFO L85 PathProgramCache]: Analyzing trace with hash 501437177, now seen corresponding path program 1 times [2023-02-18 17:13:34,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:34,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388454779] [2023-02-18 17:13:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:34,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:34,475 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:34,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826533893] [2023-02-18 17:13:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:34,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:34,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:34,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:13:34,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 17:13:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:34,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 17:13:34,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-18 17:13:34,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:34,755 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-18 17:13:34,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:34,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388454779] [2023-02-18 17:13:34,756 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:34,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826533893] [2023-02-18 17:13:34,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826533893] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:34,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:34,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-02-18 17:13:34,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675902070] [2023-02-18 17:13:34,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:13:34,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:13:34,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:34,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:13:34,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-02-18 17:13:34,780 INFO L87 Difference]: Start difference. First operand has 32 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 17:13:34,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:34,866 INFO L93 Difference]: Finished difference Result 79 states and 134 transitions. [2023-02-18 17:13:34,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 17:13:34,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-02-18 17:13:34,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:34,873 INFO L225 Difference]: With dead ends: 79 [2023-02-18 17:13:34,873 INFO L226 Difference]: Without dead ends: 42 [2023-02-18 17:13:34,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-02-18 17:13:34,877 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:34,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 145 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:13:34,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-18 17:13:34,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2023-02-18 17:13:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-18 17:13:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2023-02-18 17:13:34,906 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 29 [2023-02-18 17:13:34,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:34,907 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2023-02-18 17:13:34,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 17:13:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2023-02-18 17:13:34,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 17:13:34,908 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:34,909 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:34,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:35,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-18 17:13:35,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:35,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1017640517, now seen corresponding path program 1 times [2023-02-18 17:13:35,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:35,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254737824] [2023-02-18 17:13:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:35,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:35,126 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:35,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853933246] [2023-02-18 17:13:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:35,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:35,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:35,131 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:13:35,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 17:13:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:35,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-18 17:13:35,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-18 17:13:35,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:35,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:35,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254737824] [2023-02-18 17:13:35,432 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:35,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853933246] [2023-02-18 17:13:35,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853933246] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:35,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:35,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-02-18 17:13:35,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457752566] [2023-02-18 17:13:35,433 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:35,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 17:13:35,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:35,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 17:13:35,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-02-18 17:13:35,436 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 9 states have internal predecessors, (14), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 17:13:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:35,665 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2023-02-18 17:13:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 17:13:35,665 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 9 states have internal predecessors, (14), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 34 [2023-02-18 17:13:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:35,666 INFO L225 Difference]: With dead ends: 48 [2023-02-18 17:13:35,666 INFO L226 Difference]: Without dead ends: 46 [2023-02-18 17:13:35,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-02-18 17:13:35,667 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 41 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:35,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 90 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 17:13:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-18 17:13:35,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2023-02-18 17:13:35,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-18 17:13:35,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2023-02-18 17:13:35,677 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 34 [2023-02-18 17:13:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:35,677 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2023-02-18 17:13:35,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 9 states have internal predecessors, (14), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 17:13:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2023-02-18 17:13:35,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 17:13:35,678 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:35,678 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:35,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:35,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-02-18 17:13:35,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:35,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:35,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1133401081, now seen corresponding path program 1 times [2023-02-18 17:13:35,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:35,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226516264] [2023-02-18 17:13:35,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:35,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:35,899 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:35,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092812840] [2023-02-18 17:13:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:35,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:35,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:35,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:13:35,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 17:13:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:35,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-18 17:13:35,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-02-18 17:13:36,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-18 17:13:36,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:36,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226516264] [2023-02-18 17:13:36,079 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:36,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092812840] [2023-02-18 17:13:36,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092812840] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:36,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:36,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 15 [2023-02-18 17:13:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640725362] [2023-02-18 17:13:36,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:13:36,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:13:36,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:13:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-02-18 17:13:36,081 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 17:13:36,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:36,124 INFO L93 Difference]: Finished difference Result 70 states and 101 transitions. [2023-02-18 17:13:36,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 17:13:36,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-02-18 17:13:36,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:36,127 INFO L225 Difference]: With dead ends: 70 [2023-02-18 17:13:36,127 INFO L226 Difference]: Without dead ends: 66 [2023-02-18 17:13:36,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-02-18 17:13:36,128 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:36,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 120 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:13:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-18 17:13:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-02-18 17:13:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 32 states have (on average 1.28125) internal successors, (41), 36 states have internal predecessors, (41), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-02-18 17:13:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2023-02-18 17:13:36,141 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 39 [2023-02-18 17:13:36,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:36,141 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2023-02-18 17:13:36,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 17:13:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2023-02-18 17:13:36,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-18 17:13:36,142 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:36,142 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-02-18 17:13:36,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:36,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:36,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:36,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1954831506, now seen corresponding path program 1 times [2023-02-18 17:13:36,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:36,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684484455] [2023-02-18 17:13:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:36,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:36,377 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:36,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544071163] [2023-02-18 17:13:36,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:36,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:36,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:36,378 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:13:36,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 17:13:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:36,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 17:13:36,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-18 17:13:36,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 17:13:36,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:36,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684484455] [2023-02-18 17:13:36,423 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:36,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544071163] [2023-02-18 17:13:36,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544071163] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 17:13:36,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 17:13:36,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 17:13:36,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121346969] [2023-02-18 17:13:36,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:13:36,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:13:36,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:36,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:13:36,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 17:13:36,425 INFO L87 Difference]: Start difference. First operand 66 states and 94 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-02-18 17:13:36,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:36,451 INFO L93 Difference]: Finished difference Result 72 states and 99 transitions. [2023-02-18 17:13:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 17:13:36,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2023-02-18 17:13:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:36,452 INFO L225 Difference]: With dead ends: 72 [2023-02-18 17:13:36,452 INFO L226 Difference]: Without dead ends: 70 [2023-02-18 17:13:36,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 17:13:36,453 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 5 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:36,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 123 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:13:36,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-18 17:13:36,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-02-18 17:13:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 39 states have internal predecessors, (44), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-02-18 17:13:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 97 transitions. [2023-02-18 17:13:36,477 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 97 transitions. Word has length 45 [2023-02-18 17:13:36,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:36,477 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 97 transitions. [2023-02-18 17:13:36,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-02-18 17:13:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 97 transitions. [2023-02-18 17:13:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-18 17:13:36,478 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:36,478 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:36,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:36,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:36,683 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:36,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1322486933, now seen corresponding path program 1 times [2023-02-18 17:13:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:36,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121031416] [2023-02-18 17:13:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:36,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:36,693 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:36,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016962152] [2023-02-18 17:13:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:36,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:36,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:36,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:13:36,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 17:13:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:36,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 17:13:36,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:36,765 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-02-18 17:13:36,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:36,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:36,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121031416] [2023-02-18 17:13:36,825 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:36,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016962152] [2023-02-18 17:13:36,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016962152] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:36,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:36,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-18 17:13:36,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925525071] [2023-02-18 17:13:36,826 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:36,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 17:13:36,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:36,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 17:13:36,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-02-18 17:13:36,827 INFO L87 Difference]: Start difference. First operand 70 states and 97 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-18 17:13:36,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:36,902 INFO L93 Difference]: Finished difference Result 80 states and 105 transitions. [2023-02-18 17:13:36,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 17:13:36,902 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2023-02-18 17:13:36,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:36,903 INFO L225 Difference]: With dead ends: 80 [2023-02-18 17:13:36,904 INFO L226 Difference]: Without dead ends: 77 [2023-02-18 17:13:36,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-02-18 17:13:36,905 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:36,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 106 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:36,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-18 17:13:36,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2023-02-18 17:13:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 44 states have internal predecessors, (50), 25 states have call successors, (25), 8 states have call predecessors, (25), 8 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-02-18 17:13:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2023-02-18 17:13:36,915 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 47 [2023-02-18 17:13:36,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:36,915 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2023-02-18 17:13:36,916 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-18 17:13:36,916 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2023-02-18 17:13:36,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-18 17:13:36,917 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:36,917 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2023-02-18 17:13:36,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-18 17:13:37,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:37,140 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:37,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:37,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1617953190, now seen corresponding path program 1 times [2023-02-18 17:13:37,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:37,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551993681] [2023-02-18 17:13:37,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:37,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:37,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:37,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044279043] [2023-02-18 17:13:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:37,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:37,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:37,160 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:13:37,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 17:13:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:37,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 17:13:37,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-18 17:13:37,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:37,298 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-18 17:13:37,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:37,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551993681] [2023-02-18 17:13:37,298 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:37,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044279043] [2023-02-18 17:13:37,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044279043] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:13:37,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:13:37,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-02-18 17:13:37,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832945666] [2023-02-18 17:13:37,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:37,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 17:13:37,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:37,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 17:13:37,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-02-18 17:13:37,302 INFO L87 Difference]: Start difference. First operand 75 states and 98 transitions. Second operand has 12 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-18 17:13:37,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:37,386 INFO L93 Difference]: Finished difference Result 84 states and 108 transitions. [2023-02-18 17:13:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 17:13:37,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 50 [2023-02-18 17:13:37,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:37,388 INFO L225 Difference]: With dead ends: 84 [2023-02-18 17:13:37,388 INFO L226 Difference]: Without dead ends: 80 [2023-02-18 17:13:37,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:13:37,390 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:37,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 106 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:37,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-18 17:13:37,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-02-18 17:13:37,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 48 states have internal predecessors, (52), 25 states have call successors, (25), 9 states have call predecessors, (25), 9 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2023-02-18 17:13:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2023-02-18 17:13:37,408 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 50 [2023-02-18 17:13:37,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:37,410 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2023-02-18 17:13:37,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-18 17:13:37,410 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2023-02-18 17:13:37,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-18 17:13:37,411 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:37,412 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:37,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-18 17:13:37,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:37,617 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:37,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:37,618 INFO L85 PathProgramCache]: Analyzing trace with hash 860577929, now seen corresponding path program 2 times [2023-02-18 17:13:37,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:37,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055839730] [2023-02-18 17:13:37,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:37,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:37,628 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:37,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336164651] [2023-02-18 17:13:37,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 17:13:37,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:37,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:37,654 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) [2023-02-18 17:13:37,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 17:13:37,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 17:13:37,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:13:37,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 38 conjunts are in the unsatisfiable core [2023-02-18 17:13:37,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-18 17:13:37,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:37,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:37,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055839730] [2023-02-18 17:13:37,952 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:37,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336164651] [2023-02-18 17:13:37,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336164651] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:37,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:37,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-02-18 17:13:37,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469903738] [2023-02-18 17:13:37,953 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:37,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 17:13:37,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:37,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 17:13:37,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2023-02-18 17:13:37,954 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-18 17:13:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:38,187 INFO L93 Difference]: Finished difference Result 110 states and 140 transitions. [2023-02-18 17:13:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 17:13:38,187 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 52 [2023-02-18 17:13:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:38,188 INFO L225 Difference]: With dead ends: 110 [2023-02-18 17:13:38,188 INFO L226 Difference]: Without dead ends: 108 [2023-02-18 17:13:38,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2023-02-18 17:13:38,189 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:38,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 90 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 17:13:38,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-02-18 17:13:38,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2023-02-18 17:13:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 63 states have internal predecessors, (70), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-02-18 17:13:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2023-02-18 17:13:38,199 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 52 [2023-02-18 17:13:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:38,199 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2023-02-18 17:13:38,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-18 17:13:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2023-02-18 17:13:38,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-18 17:13:38,200 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:38,200 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:38,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 17:13:38,407 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 [2023-02-18 17:13:38,408 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:38,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:38,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1226126935, now seen corresponding path program 1 times [2023-02-18 17:13:38,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:38,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944385690] [2023-02-18 17:13:38,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:38,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:38,415 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:38,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84157589] [2023-02-18 17:13:38,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:38,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:38,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:38,417 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) [2023-02-18 17:13:38,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 17:13:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:38,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 43 conjunts are in the unsatisfiable core [2023-02-18 17:13:38,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 24 proven. 14 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-02-18 17:13:38,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-02-18 17:13:38,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:38,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944385690] [2023-02-18 17:13:38,726 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:38,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84157589] [2023-02-18 17:13:38,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84157589] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:13:38,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:13:38,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 20 [2023-02-18 17:13:38,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370445948] [2023-02-18 17:13:38,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:38,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-18 17:13:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:38,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-18 17:13:38,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2023-02-18 17:13:38,727 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 20 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 15 states have internal predecessors, (32), 9 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) [2023-02-18 17:13:41,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-18 17:13:43,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-18 17:13:43,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:43,703 INFO L93 Difference]: Finished difference Result 148 states and 191 transitions. [2023-02-18 17:13:43,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-18 17:13:43,704 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 15 states have internal predecessors, (32), 9 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) Word has length 57 [2023-02-18 17:13:43,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:43,705 INFO L225 Difference]: With dead ends: 148 [2023-02-18 17:13:43,705 INFO L226 Difference]: Without dead ends: 133 [2023-02-18 17:13:43,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2023-02-18 17:13:43,707 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 54 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 110 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:43,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 105 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2023-02-18 17:13:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-02-18 17:13:43,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 108. [2023-02-18 17:13:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 66 states have (on average 1.1363636363636365) internal successors, (75), 68 states have internal predecessors, (75), 27 states have call successors, (27), 14 states have call predecessors, (27), 14 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-02-18 17:13:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2023-02-18 17:13:43,731 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 57 [2023-02-18 17:13:43,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:43,733 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2023-02-18 17:13:43,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 15 states have internal predecessors, (32), 9 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) [2023-02-18 17:13:43,733 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2023-02-18 17:13:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-18 17:13:43,738 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:43,738 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:43,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:43,943 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 [2023-02-18 17:13:43,943 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1236716699, now seen corresponding path program 1 times [2023-02-18 17:13:43,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030195854] [2023-02-18 17:13:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:43,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:43,958 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:43,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862993218] [2023-02-18 17:13:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:43,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:43,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:43,985 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) [2023-02-18 17:13:43,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 17:13:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:44,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 17:13:44,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-02-18 17:13:44,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-02-18 17:13:44,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:44,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030195854] [2023-02-18 17:13:44,092 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:44,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862993218] [2023-02-18 17:13:44,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862993218] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:13:44,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:13:44,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-02-18 17:13:44,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388897856] [2023-02-18 17:13:44,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:44,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 17:13:44,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 17:13:44,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-02-18 17:13:44,094 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 7 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-18 17:13:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:44,189 INFO L93 Difference]: Finished difference Result 135 states and 158 transitions. [2023-02-18 17:13:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 17:13:44,189 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 7 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 6 states have call successors, (17) Word has length 65 [2023-02-18 17:13:44,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:44,190 INFO L225 Difference]: With dead ends: 135 [2023-02-18 17:13:44,190 INFO L226 Difference]: Without dead ends: 95 [2023-02-18 17:13:44,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-02-18 17:13:44,191 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 23 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:44,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 121 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:44,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-02-18 17:13:44,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2023-02-18 17:13:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 57 states have (on average 1.0701754385964912) internal successors, (61), 59 states have internal predecessors, (61), 21 states have call successors, (21), 13 states have call predecessors, (21), 13 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-02-18 17:13:44,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2023-02-18 17:13:44,202 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 65 [2023-02-18 17:13:44,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:44,202 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2023-02-18 17:13:44,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 7 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-18 17:13:44,202 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2023-02-18 17:13:44,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-18 17:13:44,203 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:44,203 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:44,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:44,407 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 [2023-02-18 17:13:44,407 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:44,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:44,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1045444891, now seen corresponding path program 2 times [2023-02-18 17:13:44,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:44,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982686585] [2023-02-18 17:13:44,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:44,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:44,415 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:44,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1933247735] [2023-02-18 17:13:44,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 17:13:44,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:44,429 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) [2023-02-18 17:13:44,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 17:13:44,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 17:13:44,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:13:44,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 17:13:44,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-02-18 17:13:44,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-02-18 17:13:44,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:44,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982686585] [2023-02-18 17:13:44,588 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:44,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933247735] [2023-02-18 17:13:44,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933247735] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:13:44,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:13:44,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-02-18 17:13:44,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288025968] [2023-02-18 17:13:44,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:44,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 17:13:44,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:44,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 17:13:44,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-02-18 17:13:44,590 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-02-18 17:13:44,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:44,670 INFO L93 Difference]: Finished difference Result 102 states and 110 transitions. [2023-02-18 17:13:44,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 17:13:44,670 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 65 [2023-02-18 17:13:44,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:44,671 INFO L225 Difference]: With dead ends: 102 [2023-02-18 17:13:44,671 INFO L226 Difference]: Without dead ends: 57 [2023-02-18 17:13:44,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2023-02-18 17:13:44,674 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 19 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:44,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 104 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:44,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-18 17:13:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-02-18 17:13:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 37 states have internal predecessors, (37), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-02-18 17:13:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2023-02-18 17:13:44,681 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 65 [2023-02-18 17:13:44,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:44,681 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2023-02-18 17:13:44,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-02-18 17:13:44,682 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2023-02-18 17:13:44,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-18 17:13:44,682 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:44,682 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:44,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:44,887 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 [2023-02-18 17:13:44,887 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:44,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1752162263, now seen corresponding path program 3 times [2023-02-18 17:13:44,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:44,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947577868] [2023-02-18 17:13:44,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:44,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:44,893 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:44,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672155850] [2023-02-18 17:13:44,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 17:13:44,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:44,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:44,903 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) [2023-02-18 17:13:44,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 17:13:44,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-18 17:13:44,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:13:44,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-18 17:13:44,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-02-18 17:13:44,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-02-18 17:13:44,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:44,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947577868] [2023-02-18 17:13:44,995 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:44,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672155850] [2023-02-18 17:13:44,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672155850] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:13:44,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:13:44,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-02-18 17:13:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307880690] [2023-02-18 17:13:44,996 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:44,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 17:13:44,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:44,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 17:13:44,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-02-18 17:13:44,997 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 11 states have internal predecessors, (35), 8 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) [2023-02-18 17:13:45,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:45,068 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2023-02-18 17:13:45,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 17:13:45,069 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 11 states have internal predecessors, (35), 8 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) Word has length 70 [2023-02-18 17:13:45,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:45,069 INFO L225 Difference]: With dead ends: 68 [2023-02-18 17:13:45,069 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 17:13:45,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-02-18 17:13:45,070 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 14 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:45,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 127 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 17:13:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 17:13:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 17:13:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 17:13:45,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2023-02-18 17:13:45,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:45,071 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 17:13:45,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 11 states have internal predecessors, (35), 8 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) [2023-02-18 17:13:45,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 17:13:45,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 17:13:45,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 17:13:45,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-18 17:13:45,278 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 [2023-02-18 17:13:45,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 17:13:45,290 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 52) the Hoare annotation is: (let ((.cse15 (- |ULTIMATE.start_main_~r~0#1|))) (let ((.cse2 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse3 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse4 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse6 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse7 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse9 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse10 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse0 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse12 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse17 (let ((.cse19 (+ |ULTIMATE.start_main_~s~0#1| .cse15)) (.cse18 (+ |ULTIMATE.start_main_~q~0#1| (- |ULTIMATE.start_main_~p~0#1|)))) (or (= (+ |ULTIMATE.start_main_~b~0#1| (- |ULTIMATE.start_main_~a~0#1|)) (+ (* |ULTIMATE.start_main_~x~0#1| .cse18) (* |ULTIMATE.start_main_~y~0#1| .cse19))) (not (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| .cse19) (- (* |ULTIMATE.start_main_~r~0#1| .cse18))))) (> |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (.cse13 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))))) (or (and .cse0 .cse1 (let ((.cse8 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse1 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse2 .cse11 .cse6 .cse1 .cse5 .cse12 .cse8 .cse9 .cse13 .cse14 .cse10)))) (let ((.cse16 (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~b~0#1| (- 1))))) (and (= |ULTIMATE.start_main_~s~0#1| (+ 1 .cse15)) .cse2 .cse3 (= .cse16 |ULTIMATE.start_main_~x~0#1|) .cse4 .cse5 .cse6 .cse1 .cse7 (not (= .cse16 |ULTIMATE.start_main_~y~0#1|)) .cse9 .cse10 .cse11 .cse0 .cse12 .cse17 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) (not (> .cse16 |ULTIMATE.start_main_~y~0#1|)))) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse1 .cse7 .cse9 .cse10 .cse11 .cse0 .cse12 .cse17 .cse13)))) [2023-02-18 17:13:45,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 17:13:45,291 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~x~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2) (>= |ULTIMATE.start_main_~y~0#1| 0) (>= |ULTIMATE.start_main_~x~0#1| 1) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-02-18 17:13:45,291 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (let ((.cse16 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse0 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse10 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse3 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse4 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse11 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse22 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse24 (<= |ULTIMATE.start_main_~x~0#1| 2))) (let ((.cse9 (- |ULTIMATE.start_main_~r~0#1|)) (.cse13 (or (and .cse16 .cse0 .cse3 .cse4 .cse22 .cse24) (and .cse16 .cse0 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse10 .cse3 .cse4 .cse11 .cse22 .cse24))) (.cse25 (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~b~0#1| (- 1))))) (let ((.cse1 (= .cse25 |ULTIMATE.start_main_~x~0#1|)) (.cse6 (not (= .cse25 |ULTIMATE.start_main_~y~0#1|))) (.cse8 (not (> .cse25 |ULTIMATE.start_main_~y~0#1|))) (.cse2 (let ((.cse18 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse21 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (or (let ((.cse17 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse23 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse20 (+ (* |ULTIMATE.start_main_~x~0#1| .cse17) (* |ULTIMATE.start_main_~y~0#1| .cse23)))) (let ((.cse19 (+ |ULTIMATE.start_main_~a~0#1| .cse20))) (and .cse16 (= .cse17 0) .cse18 (> .cse19 .cse20) .cse21 .cse22 (= .cse23 1) .cse13 (>= .cse20 |ULTIMATE.start_main_~y~0#1|) .cse24 (<= .cse19 |ULTIMATE.start_main_~x~0#1|))))) (and .cse16 .cse18 .cse21 .cse22 .cse13 .cse24)))) (.cse5 (let ((.cse15 (+ |ULTIMATE.start_main_~s~0#1| .cse9)) (.cse14 (+ |ULTIMATE.start_main_~q~0#1| (- |ULTIMATE.start_main_~p~0#1|)))) (or (= (+ |ULTIMATE.start_main_~b~0#1| (- |ULTIMATE.start_main_~a~0#1|)) (+ (* |ULTIMATE.start_main_~x~0#1| .cse14) (* |ULTIMATE.start_main_~y~0#1| .cse15))) (not (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| .cse15) (- (* |ULTIMATE.start_main_~r~0#1| .cse14))))) (> |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (.cse12 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))))) (or (let ((.cse7 (+ (* |ULTIMATE.start_main_~s~0#1| (- 1)) 1))) (and (= (+ |ULTIMATE.start_main_~q~0#1| 1) 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= 1 (+ (* 1 |ULTIMATE.start_main_~s~0#1|) (- (* .cse7 |ULTIMATE.start_main_~q~0#1|)))) (= .cse7 0) .cse8)) (and (= |ULTIMATE.start_main_~s~0#1| (+ 1 .cse9)) .cse0 .cse1 .cse2 .cse10 .cse3 .cse4 .cse5 .cse11 .cse6 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse8) (and .cse12 .cse13) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse12))))) [2023-02-18 17:13:45,292 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse15 (- |ULTIMATE.start_main_~r~0#1|))) (let ((.cse2 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse3 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse4 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse6 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse7 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse9 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse10 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse0 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse12 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse17 (let ((.cse19 (+ |ULTIMATE.start_main_~s~0#1| .cse15)) (.cse18 (+ |ULTIMATE.start_main_~q~0#1| (- |ULTIMATE.start_main_~p~0#1|)))) (or (= (+ |ULTIMATE.start_main_~b~0#1| (- |ULTIMATE.start_main_~a~0#1|)) (+ (* |ULTIMATE.start_main_~x~0#1| .cse18) (* |ULTIMATE.start_main_~y~0#1| .cse19))) (not (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| .cse19) (- (* |ULTIMATE.start_main_~r~0#1| .cse18))))) (> |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (.cse13 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))))) (or (and .cse0 .cse1 (let ((.cse8 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse1 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse2 .cse11 .cse6 .cse1 .cse5 .cse12 .cse8 .cse9 .cse13 .cse14 .cse10)))) (let ((.cse16 (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~b~0#1| (- 1))))) (and (= |ULTIMATE.start_main_~s~0#1| (+ 1 .cse15)) .cse2 .cse3 (= .cse16 |ULTIMATE.start_main_~x~0#1|) .cse4 .cse5 .cse6 .cse1 .cse7 (not (= .cse16 |ULTIMATE.start_main_~y~0#1|)) .cse9 .cse10 .cse11 .cse0 .cse12 .cse17 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) (not (> .cse16 |ULTIMATE.start_main_~y~0#1|)))) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse1 .cse7 .cse9 .cse10 .cse11 .cse0 .cse12 .cse17 .cse13)))) [2023-02-18 17:13:45,292 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 17:13:45,292 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 18 59) the Hoare annotation is: true [2023-02-18 17:13:45,292 INFO L899 garLoopResultBuilder]: For program point L38(lines 35 52) no Hoare annotation was computed. [2023-02-18 17:13:45,293 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse25 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse23 (- |ULTIMATE.start_main_~r~0#1|))) (let ((.cse15 (let ((.cse29 (+ |ULTIMATE.start_main_~s~0#1| .cse23)) (.cse28 (+ |ULTIMATE.start_main_~q~0#1| (- |ULTIMATE.start_main_~p~0#1|)))) (or (= (+ |ULTIMATE.start_main_~b~0#1| (- |ULTIMATE.start_main_~a~0#1|)) (+ (* |ULTIMATE.start_main_~x~0#1| .cse28) (* |ULTIMATE.start_main_~y~0#1| .cse29))) (not (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| .cse29) (- (* |ULTIMATE.start_main_~r~0#1| .cse28))))) (> |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (.cse5 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse0 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse19 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse25 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse20 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse3 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse21 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse6 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse27 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse7 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse8 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse9 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~b~0#1| 2)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse22 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse14 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse16 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse17 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (let ((.cse1 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse18 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse13 (+ (* |ULTIMATE.start_main_~x~0#1| .cse1) (* |ULTIMATE.start_main_~y~0#1| .cse18)))) (let ((.cse2 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse12 (+ |ULTIMATE.start_main_~a~0#1| .cse13))) (and .cse0 (= .cse1 0) (<= .cse2 2) .cse3 .cse4 (<= .cse2 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (> .cse12 .cse13) .cse14 .cse15 .cse16 .cse17 (<= .cse5 2) (= .cse18 1) (>= .cse13 |ULTIMATE.start_main_~y~0#1|) (<= .cse12 |ULTIMATE.start_main_~x~0#1|))))) (let ((.cse26 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse0 (<= |ULTIMATE.start_main_~a~0#1| .cse5) .cse11 (or (and .cse0 .cse19 .cse20 .cse4 .cse3 .cse21 .cse7 .cse8 .cse11 .cse22 .cse14 .cse15 .cse16) (let ((.cse24 (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~b~0#1| (- 1))))) (and (= |ULTIMATE.start_main_~s~0#1| (+ 1 .cse23)) .cse0 .cse19 (= .cse24 |ULTIMATE.start_main_~x~0#1|) .cse20 .cse4 .cse3 .cse21 (not (= .cse24 |ULTIMATE.start_main_~y~0#1|)) .cse7 .cse8 .cse11 .cse22 .cse14 .cse15 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) (not (> .cse24 |ULTIMATE.start_main_~y~0#1|)))) (and .cse0 .cse19 .cse11 .cse20 .cse22 .cse4 .cse3 .cse14 .cse21 .cse7 (or (not (= 1 (+ .cse25 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) .cse16) .cse8)) .cse3 (<= .cse26 2) (<= .cse26 .cse5) .cse27 .cse8)) (and .cse0 .cse19 .cse20 .cse4 .cse3 .cse21 .cse6 .cse27 .cse7 .cse8 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse11 .cse22 .cse14 (<= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse16 .cse17)))) [2023-02-18 17:13:45,293 INFO L895 garLoopResultBuilder]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse25 (- |ULTIMATE.start_main_~r~0#1|))) (let ((.cse6 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse9 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~b~0#1| 2)) (.cse17 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse5 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse15 (let ((.cse28 (+ |ULTIMATE.start_main_~s~0#1| .cse25)) (.cse27 (+ |ULTIMATE.start_main_~q~0#1| (- |ULTIMATE.start_main_~p~0#1|)))) (or (= (+ |ULTIMATE.start_main_~b~0#1| (- |ULTIMATE.start_main_~a~0#1|)) (+ (* |ULTIMATE.start_main_~x~0#1| .cse27) (* |ULTIMATE.start_main_~y~0#1| .cse28))) (not (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| .cse28) (- (* |ULTIMATE.start_main_~r~0#1| .cse27))))) (> |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (.cse0 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse19 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse20 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse4 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse3 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse14 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse21 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse7 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse16 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse8 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (let ((.cse1 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse18 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse13 (+ (* |ULTIMATE.start_main_~x~0#1| .cse1) (* |ULTIMATE.start_main_~y~0#1| .cse18)))) (let ((.cse2 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse12 (+ |ULTIMATE.start_main_~a~0#1| .cse13))) (and .cse0 (= .cse1 0) (<= .cse2 2) .cse3 .cse4 (<= .cse2 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (> .cse12 .cse13) .cse14 .cse15 .cse16 .cse17 (<= .cse5 2) (= .cse18 1) (>= .cse13 |ULTIMATE.start_main_~y~0#1|) (<= .cse12 |ULTIMATE.start_main_~x~0#1|))))) (and .cse0 .cse19 .cse20 .cse4 .cse3 .cse21 .cse6 .cse22 .cse7 .cse8 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse11 .cse23 .cse14 (<= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse16 .cse17) (let ((.cse24 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse0 (<= |ULTIMATE.start_main_~a~0#1| .cse5) .cse11 .cse3 (<= .cse24 2) (<= .cse24 .cse5) .cse22 (or (and .cse0 .cse19 .cse20 .cse4 .cse3 .cse21 .cse7 .cse8 .cse11 .cse23 .cse14 .cse15 .cse16) (let ((.cse26 (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~b~0#1| (- 1))))) (and (= |ULTIMATE.start_main_~s~0#1| (+ 1 .cse25)) .cse0 .cse19 (= .cse26 |ULTIMATE.start_main_~x~0#1|) .cse20 .cse4 .cse3 .cse21 (not (= .cse26 |ULTIMATE.start_main_~y~0#1|)) .cse7 .cse8 .cse11 .cse23 .cse14 .cse15 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) (not (> .cse26 |ULTIMATE.start_main_~y~0#1|)))) (and .cse0 .cse19 .cse11 .cse20 .cse23 .cse4 .cse3 .cse14 .cse21 .cse7 .cse16 .cse8)) .cse8))))) [2023-02-18 17:13:45,293 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 17:13:45,293 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 17:13:45,293 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-18 17:13:45,293 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-02-18 17:13:45,294 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~x~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-02-18 17:13:45,294 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~x~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2) (>= |ULTIMATE.start_main_~y~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-02-18 17:13:45,294 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (let ((.cse12 (- |ULTIMATE.start_main_~r~0#1|))) (let ((.cse0 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse1 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse5 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse11 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse7 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse8 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse10 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse14 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse6 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse15 (let ((.cse17 (+ |ULTIMATE.start_main_~s~0#1| .cse12)) (.cse16 (+ |ULTIMATE.start_main_~q~0#1| (- |ULTIMATE.start_main_~p~0#1|)))) (or (= (+ |ULTIMATE.start_main_~b~0#1| (- |ULTIMATE.start_main_~a~0#1|)) (+ (* |ULTIMATE.start_main_~x~0#1| .cse16) (* |ULTIMATE.start_main_~y~0#1| .cse17))) (not (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| .cse17) (- (* |ULTIMATE.start_main_~r~0#1| .cse16))))) (> |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (.cse9 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse2 .cse5 .cse11 .cse4 .cse6 (= |ULTIMATE.start_main_~q~0#1| 0) .cse8 .cse9 (= |ULTIMATE.start_main_~s~0#1| 1) .cse10) (let ((.cse13 (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~b~0#1| (- 1))))) (and (= |ULTIMATE.start_main_~s~0#1| (+ 1 .cse12)) .cse0 .cse1 (= .cse13 |ULTIMATE.start_main_~x~0#1|) .cse3 .cse4 .cse5 .cse11 .cse7 (not (= .cse13 |ULTIMATE.start_main_~y~0#1|)) .cse8 .cse10 .cse2 .cse14 .cse6 .cse15 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) (not (> .cse13 |ULTIMATE.start_main_~y~0#1|)))) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse11 .cse7 .cse8 .cse10 .cse2 .cse14 .cse6 .cse15 .cse9)))) [2023-02-18 17:13:45,294 INFO L902 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: true [2023-02-18 17:13:45,294 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-18 17:13:45,294 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 51) no Hoare annotation was computed. [2023-02-18 17:13:45,295 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 35 52) the Hoare annotation is: (let ((.cse25 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse23 (- |ULTIMATE.start_main_~r~0#1|))) (let ((.cse15 (let ((.cse29 (+ |ULTIMATE.start_main_~s~0#1| .cse23)) (.cse28 (+ |ULTIMATE.start_main_~q~0#1| (- |ULTIMATE.start_main_~p~0#1|)))) (or (= (+ |ULTIMATE.start_main_~b~0#1| (- |ULTIMATE.start_main_~a~0#1|)) (+ (* |ULTIMATE.start_main_~x~0#1| .cse28) (* |ULTIMATE.start_main_~y~0#1| .cse29))) (not (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| .cse29) (- (* |ULTIMATE.start_main_~r~0#1| .cse28))))) (> |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (.cse5 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse0 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse19 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse25 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse20 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse3 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse21 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse6 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse27 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse7 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse8 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse9 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~b~0#1| 2)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse22 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse14 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse16 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse17 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (let ((.cse1 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse18 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse13 (+ (* |ULTIMATE.start_main_~x~0#1| .cse1) (* |ULTIMATE.start_main_~y~0#1| .cse18)))) (let ((.cse2 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse12 (+ |ULTIMATE.start_main_~a~0#1| .cse13))) (and .cse0 (= .cse1 0) (<= .cse2 2) .cse3 .cse4 (<= .cse2 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (> .cse12 .cse13) .cse14 .cse15 .cse16 .cse17 (<= .cse5 2) (= .cse18 1) (>= .cse13 |ULTIMATE.start_main_~y~0#1|) (<= .cse12 |ULTIMATE.start_main_~x~0#1|))))) (let ((.cse26 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse0 (<= |ULTIMATE.start_main_~a~0#1| .cse5) .cse11 (or (and .cse0 .cse19 .cse20 .cse4 .cse3 .cse21 .cse7 .cse8 .cse11 .cse22 .cse14 .cse15 .cse16) (let ((.cse24 (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~b~0#1| (- 1))))) (and (= |ULTIMATE.start_main_~s~0#1| (+ 1 .cse23)) .cse0 .cse19 (= .cse24 |ULTIMATE.start_main_~x~0#1|) .cse20 .cse4 .cse3 .cse21 (not (= .cse24 |ULTIMATE.start_main_~y~0#1|)) .cse7 .cse8 .cse11 .cse22 .cse14 .cse15 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) (not (> .cse24 |ULTIMATE.start_main_~y~0#1|)))) (and .cse0 .cse19 .cse11 .cse20 .cse22 .cse4 .cse3 .cse14 .cse21 .cse7 (or (not (= 1 (+ .cse25 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) .cse16) .cse8)) .cse3 (<= .cse26 2) (<= .cse26 .cse5) .cse27 .cse8)) (and .cse0 .cse19 .cse20 .cse4 .cse3 .cse21 .cse6 .cse27 .cse7 .cse8 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse11 .cse22 .cse14 (<= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse16 .cse17)))) [2023-02-18 17:13:45,295 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse16 (- |ULTIMATE.start_main_~r~0#1|))) (let ((.cse14 (let ((.cse30 (+ |ULTIMATE.start_main_~s~0#1| .cse16)) (.cse29 (+ |ULTIMATE.start_main_~q~0#1| (- |ULTIMATE.start_main_~p~0#1|)))) (or (= (+ |ULTIMATE.start_main_~b~0#1| (- |ULTIMATE.start_main_~a~0#1|)) (+ (* |ULTIMATE.start_main_~x~0#1| .cse29) (* |ULTIMATE.start_main_~y~0#1| .cse30))) (not (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| .cse30) (- (* |ULTIMATE.start_main_~r~0#1| .cse29))))) (> |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))) (.cse1 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse0 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse6 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse7 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse8 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse3 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse9 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse22 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse5 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse10 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse11 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse18 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse19 (<= |ULTIMATE.start_main_~b~0#1| 2)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse12 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse13 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse15 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse23 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (let ((.cse4 (+ |ULTIMATE.start_main_~a~0#1| 1))) (and .cse0 (<= |ULTIMATE.start_main_~a~0#1| .cse1) .cse2 .cse3 (<= .cse4 2) (<= .cse4 .cse1) .cse5 (or (and .cse0 .cse6 .cse7 .cse8 .cse3 .cse9 .cse10 .cse11 .cse2 .cse12 .cse13 .cse14 .cse15) (let ((.cse17 (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~b~0#1| (- 1))))) (and (= |ULTIMATE.start_main_~s~0#1| (+ 1 .cse16)) .cse0 .cse6 (= .cse17 |ULTIMATE.start_main_~x~0#1|) .cse7 .cse8 .cse3 .cse9 (not (= .cse17 |ULTIMATE.start_main_~y~0#1|)) .cse10 .cse11 .cse2 .cse12 .cse13 .cse14 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) (not (> .cse17 |ULTIMATE.start_main_~y~0#1|))))) .cse11)) (and .cse18 .cse19 .cse0 .cse2 .cse3 .cse10 (<= .cse1 2) .cse11 (let ((.cse28 (+ |ULTIMATE.start_main_~b~0#1| 1))) (let ((.cse20 (<= .cse28 2)) (.cse21 (<= .cse28 .cse1))) (or (and .cse0 .cse20 .cse3 .cse8 .cse21 .cse22 .cse10 .cse11 .cse2 .cse12 .cse13 .cse14 .cse15 .cse23) (let ((.cse24 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse27 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse26 (+ (* |ULTIMATE.start_main_~x~0#1| .cse24) (* |ULTIMATE.start_main_~y~0#1| .cse27)))) (let ((.cse25 (+ |ULTIMATE.start_main_~a~0#1| .cse26))) (and .cse0 (= .cse24 0) .cse20 .cse3 .cse8 .cse21 .cse22 .cse10 .cse11 .cse2 .cse12 (> .cse25 .cse26) .cse13 .cse14 .cse15 .cse23 (= .cse27 1) (>= .cse26 |ULTIMATE.start_main_~y~0#1|) (<= .cse25 |ULTIMATE.start_main_~x~0#1|))))))))) (and .cse0 .cse6 .cse7 .cse8 .cse3 .cse9 .cse22 .cse5 .cse10 .cse11 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse18 .cse19 .cse2 .cse12 .cse13 (<= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse15 .cse23)))) [2023-02-18 17:13:45,295 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-02-18 17:13:45,295 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-02-18 17:13:45,295 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2023-02-18 17:13:45,295 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-02-18 17:13:45,295 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2023-02-18 17:13:45,296 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2023-02-18 17:13:45,296 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2023-02-18 17:13:45,296 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 16) the Hoare annotation is: (let ((.cse0 (= 0 |__VERIFIER_assert_#in~cond|))) (let ((.cse1 (= |__VERIFIER_assert_#in~cond| 1)) (.cse2 (not .cse0))) (or (and (or .cse0 (not .cse1)) .cse0) .cse2 (and .cse1 .cse2)))) [2023-02-18 17:13:45,296 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2023-02-18 17:13:45,296 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-02-18 17:13:45,298 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:45,299 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 17:13:45,306 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,306 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,306 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,307 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,329 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,330 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,330 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,330 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 05:13:45 BoogieIcfgContainer [2023-02-18 17:13:45,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 17:13:45,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 17:13:45,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 17:13:45,333 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 17:13:45,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:13:34" (3/4) ... [2023-02-18 17:13:45,336 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 17:13:45,339 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-18 17:13:45,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-18 17:13:45,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-18 17:13:45,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 17:13:45,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 17:13:45,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 17:13:45,369 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 17:13:45,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 17:13:45,370 INFO L158 Benchmark]: Toolchain (without parser) took 11540.29ms. Allocated memory was 161.5MB in the beginning and 293.6MB in the end (delta: 132.1MB). Free memory was 112.9MB in the beginning and 181.8MB in the end (delta: -68.8MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2023-02-18 17:13:45,370 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 17:13:45,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.06ms. Allocated memory is still 161.5MB. Free memory was 112.5MB in the beginning and 102.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 17:13:45,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.21ms. Allocated memory is still 161.5MB. Free memory was 102.0MB in the beginning and 100.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 17:13:45,370 INFO L158 Benchmark]: Boogie Preprocessor took 12.78ms. Allocated memory is still 161.5MB. Free memory was 100.3MB in the beginning and 99.5MB in the end (delta: 872.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 17:13:45,371 INFO L158 Benchmark]: RCFGBuilder took 251.66ms. Allocated memory is still 161.5MB. Free memory was 99.5MB in the beginning and 88.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 17:13:45,371 INFO L158 Benchmark]: TraceAbstraction took 11040.03ms. Allocated memory was 161.5MB in the beginning and 293.6MB in the end (delta: 132.1MB). Free memory was 87.8MB in the beginning and 184.9MB in the end (delta: -97.1MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-02-18 17:13:45,372 INFO L158 Benchmark]: Witness Printer took 36.01ms. Allocated memory is still 293.6MB. Free memory was 184.9MB in the beginning and 181.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 17:13:45,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.06ms. Allocated memory is still 161.5MB. Free memory was 112.5MB in the beginning and 102.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.21ms. Allocated memory is still 161.5MB. Free memory was 102.0MB in the beginning and 100.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.78ms. Allocated memory is still 161.5MB. Free memory was 100.3MB in the beginning and 99.5MB in the end (delta: 872.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 251.66ms. Allocated memory is still 161.5MB. Free memory was 99.5MB in the beginning and 88.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11040.03ms. Allocated memory was 161.5MB in the beginning and 293.6MB in the end (delta: 132.1MB). Free memory was 87.8MB in the beginning and 184.9MB in the end (delta: -97.1MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Witness Printer took 36.01ms. Allocated memory is still 293.6MB. Free memory was 184.9MB in the beginning and 181.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 11, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 272 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 1237 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 908 mSDsCounter, 222 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1756 IncrementalHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 222 mSolverCounterUnsat, 329 mSDtfsCounter, 1756 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 989 GetRequests, 816 SyntacticMatches, 15 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=8, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 36 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 70 PreInvPairs, 101 NumberOfFragments, 4330 HoareAnnotationTreeSize, 70 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 553 NumberOfCodeBlocks, 532 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 910 ConstructedInterpolants, 2 QuantifiedInterpolants, 3551 SizeOfPredicates, 79 NumberOfNonLiveVariables, 1393 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 18 InterpolantComputations, 3 PerfectInterpolantSequences, 1117/1243 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: 35]: Loop Invariant [2023-02-18 17:13:45,391 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,391 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,391 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,392 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,392 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,392 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,392 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:45,392 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((x >= 0 && p * -1 + 1 == 0) && b + 1 <= 2) && y >= 0) && p == 1) && b + 1 <= a + b) && q == 0) && y >= 1) && x <= 2) && 1 <= b) && b <= 2) && y <= 2) && a + (x * (p * -1 + 1) + y * (r * -1)) > x * (p * -1 + 1) + y * (r * -1)) && x >= 1) && ((b + -a == x * (q + -p) + y * (s + -r) || !(1 == p * (s + -r) + -(r * (q + -p)))) || a > b)) && b == x * q + y * s) && s == 1) && a + b <= 2) && r * -1 == 1) && x * (p * -1 + 1) + y * (r * -1) >= y) && a + (x * (p * -1 + 1) + y * (r * -1)) <= x) || ((((((((x >= 0 && a <= a + b) && y <= 2) && ((((((((((((((x >= 0 && (forall ULTIMATE.start_main_~q~0#1 : int :: 1 == p * s + -(r * ULTIMATE.start_main_~q~0#1))) && a == x) && p == 1) && y >= 0) && r == 0) && y >= 1) && x <= 2) && y <= 2) && a == y * r + x * p) && x >= 1) && ((b + -a == x * (q + -p) + y * (s + -r) || !(1 == p * (s + -r) + -(r * (q + -p)))) || a > b)) && b == x * q + y * s) || ((((((((((((((((s == 1 + -r && x >= 0) && (forall ULTIMATE.start_main_~q~0#1 : int :: 1 == p * s + -(r * ULTIMATE.start_main_~q~0#1))) && y + b * -1 == x) && a == x) && p == 1) && y >= 0) && r == 0) && !(y + b * -1 == y)) && y >= 1) && x <= 2) && y <= 2) && a == y * r + x * p) && x >= 1) && ((b + -a == x * (q + -p) + y * (s + -r) || !(1 == p * (s + -r) + -(r * (q + -p)))) || a > b)) && q + p == 0) && !(y + b * -1 > y))) || (((((((((((x >= 0 && (forall ULTIMATE.start_main_~q~0#1 : int :: 1 == p * s + -(r * ULTIMATE.start_main_~q~0#1))) && y <= 2) && a == x) && a == y * r + x * p) && p == 1) && y >= 0) && x >= 1) && r == 0) && y >= 1) && (!(1 == p * s + -(r * q)) || b == x * q + y * s)) && x <= 2))) && y >= 0) && a + 1 <= 2) && a + 1 <= a + b) && a <= 2) && x <= 2)) || (((((((((((((((((((x >= 0 && (forall ULTIMATE.start_main_~q~0#1 : int :: 1 == p * s + -(r * ULTIMATE.start_main_~q~0#1))) && a == x) && p == 1) && y >= 0) && r == 0) && q == 0) && a <= 2) && y >= 1) && x <= 2) && b >= y) && b == y) && 1 <= b) && b <= 2) && y <= 2) && a == y * r + x * p) && x >= 1) && a <= x) && b == x * q + y * s) && s == 1) RESULT: Ultimate proved your program to be correct! [2023-02-18 17:13:45,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE