./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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/prodbin-ll_valuebound50.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 352373f9b097794e6947f5064b04543cec809ba042ac0b3a931e0e161838d7d3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-14 01:17:25,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 01:17:25,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 01:17:25,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 01:17:25,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 01:17:25,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 01:17:25,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 01:17:25,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 01:17:25,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 01:17:25,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 01:17:25,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 01:17:25,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 01:17:25,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 01:17:25,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 01:17:25,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 01:17:25,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 01:17:25,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 01:17:25,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 01:17:25,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 01:17:25,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 01:17:25,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 01:17:25,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 01:17:25,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 01:17:25,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 01:17:25,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 01:17:25,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 01:17:25,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 01:17:25,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 01:17:25,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 01:17:25,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 01:17:25,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 01:17:25,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 01:17:25,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 01:17:25,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 01:17:25,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 01:17:25,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 01:17:25,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 01:17:25,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 01:17:25,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 01:17:25,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 01:17:25,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 01:17:25,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 01:17:25,793 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 01:17:25,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 01:17:25,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 01:17:25,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 01:17:25,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 01:17:25,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 01:17:25,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 01:17:25,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 01:17:25,795 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 01:17:25,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 01:17:25,796 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 01:17:25,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 01:17:25,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 01:17:25,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 01:17:25,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 01:17:25,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 01:17:25,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 01:17:25,797 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 01:17:25,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 01:17:25,797 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 01:17:25,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 01:17:25,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 01:17:25,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 01:17:25,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 01:17:25,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 01:17:25,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 01:17:25,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 01:17:25,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 01:17:25,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 01:17:25,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 01:17:25,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 01:17:25,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 01:17:25,799 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 01:17:25,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 01:17:25,799 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 01:17:25,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 352373f9b097794e6947f5064b04543cec809ba042ac0b3a931e0e161838d7d3 [2023-02-14 01:17:25,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 01:17:25,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 01:17:25,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 01:17:25,964 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 01:17:25,964 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 01:17:25,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c [2023-02-14 01:17:26,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 01:17:27,033 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 01:17:27,033 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c [2023-02-14 01:17:27,037 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5478dd62c/61047653d1b54d3bbd36dc9b0c64c5c7/FLAG7202d58e1 [2023-02-14 01:17:27,046 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5478dd62c/61047653d1b54d3bbd36dc9b0c64c5c7 [2023-02-14 01:17:27,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 01:17:27,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 01:17:27,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 01:17:27,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 01:17:27,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 01:17:27,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fd9a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27, skipping insertion in model container [2023-02-14 01:17:27,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 01:17:27,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 01:17:27,162 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/prodbin-ll_valuebound50.c[537,550] [2023-02-14 01:17:27,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 01:17:27,176 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 01:17:27,183 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/prodbin-ll_valuebound50.c[537,550] [2023-02-14 01:17:27,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 01:17:27,193 INFO L208 MainTranslator]: Completed translation [2023-02-14 01:17:27,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27 WrapperNode [2023-02-14 01:17:27,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 01:17:27,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 01:17:27,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 01:17:27,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 01:17:27,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,217 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2023-02-14 01:17:27,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 01:17:27,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 01:17:27,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 01:17:27,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 01:17:27,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 01:17:27,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 01:17:27,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 01:17:27,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 01:17:27,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (1/1) ... [2023-02-14 01:17:27,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 01:17:27,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:17:27,255 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) [2023-02-14 01:17:27,260 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 [2023-02-14 01:17:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 01:17:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-14 01:17:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-14 01:17:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 01:17:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 01:17:27,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 01:17:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-14 01:17:27,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-14 01:17:27,348 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 01:17:27,349 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 01:17:27,438 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 01:17:27,456 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 01:17:27,457 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 01:17:27,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 01:17:27 BoogieIcfgContainer [2023-02-14 01:17:27,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 01:17:27,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 01:17:27,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 01:17:27,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 01:17:27,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 01:17:27" (1/3) ... [2023-02-14 01:17:27,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cf1975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 01:17:27, skipping insertion in model container [2023-02-14 01:17:27,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:17:27" (2/3) ... [2023-02-14 01:17:27,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cf1975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 01:17:27, skipping insertion in model container [2023-02-14 01:17:27,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 01:17:27" (3/3) ... [2023-02-14 01:17:27,464 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound50.c [2023-02-14 01:17:27,476 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 01:17:27,476 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 01:17:27,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 01:17:27,516 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;@23e6607a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 01:17:27,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 01:17:27,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-14 01:17:27,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-14 01:17:27,527 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:17:27,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:17:27,528 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:17:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:17:27,533 INFO L85 PathProgramCache]: Analyzing trace with hash -861605892, now seen corresponding path program 1 times [2023-02-14 01:17:27,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:17:27,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042216353] [2023-02-14 01:17:27,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:27,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:17:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 01:17:27,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:17:27,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042216353] [2023-02-14 01:17:27,674 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-14 01:17:27,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885092175] [2023-02-14 01:17:27,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:27,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:17:27,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:17:27,680 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) [2023-02-14 01:17:27,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 01:17:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 01:17:27,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-14 01:17:27,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:17:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-14 01:17:27,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 01:17:27,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885092175] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 01:17:27,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 01:17:27,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 01:17:27,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135782178] [2023-02-14 01:17:27,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 01:17:27,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-14 01:17:27,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:17:27,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-14 01:17:27,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 01:17:27,787 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-14 01:17:27,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:17:27,805 INFO L93 Difference]: Finished difference Result 51 states and 71 transitions. [2023-02-14 01:17:27,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 01:17:27,807 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-02-14 01:17:27,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:17:27,811 INFO L225 Difference]: With dead ends: 51 [2023-02-14 01:17:27,812 INFO L226 Difference]: Without dead ends: 23 [2023-02-14 01:17:27,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 01:17:27,816 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 01:17:27,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 01:17:27,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-14 01:17:27,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-14 01:17:27,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-14 01:17:27,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-02-14 01:17:27,840 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 24 [2023-02-14 01:17:27,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:17:27,841 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-02-14 01:17:27,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-14 01:17:27,841 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-02-14 01:17:27,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-14 01:17:27,842 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:17:27,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:17:27,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-14 01:17:28,047 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 [2023-02-14 01:17:28,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:17:28,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:17:28,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2010313222, now seen corresponding path program 1 times [2023-02-14 01:17:28,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:17:28,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629300055] [2023-02-14 01:17:28,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:28,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:17:28,081 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 01:17:28,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482352033] [2023-02-14 01:17:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:28,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:17:28,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:17:28,092 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) [2023-02-14 01:17:28,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 01:17:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 01:17:28,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-14 01:17:28,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:17:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-14 01:17:28,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 01:17:28,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:17:28,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629300055] [2023-02-14 01:17:28,248 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 01:17:28,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482352033] [2023-02-14 01:17:28,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482352033] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 01:17:28,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 01:17:28,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-14 01:17:28,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824129599] [2023-02-14 01:17:28,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 01:17:28,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 01:17:28,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:17:28,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 01:17:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 01:17:28,252 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-14 01:17:28,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:17:28,297 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-02-14 01:17:28,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 01:17:28,297 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-02-14 01:17:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:17:28,298 INFO L225 Difference]: With dead ends: 35 [2023-02-14 01:17:28,298 INFO L226 Difference]: Without dead ends: 33 [2023-02-14 01:17:28,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-14 01:17:28,299 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 01:17:28,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 71 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 01:17:28,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-14 01:17:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2023-02-14 01:17:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-14 01:17:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-02-14 01:17:28,306 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 24 [2023-02-14 01:17:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:17:28,306 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-02-14 01:17:28,307 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-14 01:17:28,307 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-02-14 01:17:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-14 01:17:28,307 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:17:28,308 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:17:28,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-14 01:17:28,512 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 [2023-02-14 01:17:28,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:17:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:17:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash -895979555, now seen corresponding path program 1 times [2023-02-14 01:17:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:17:28,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30840714] [2023-02-14 01:17:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:28,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:17:28,526 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 01:17:28,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652283561] [2023-02-14 01:17:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:28,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:17:28,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:17:28,554 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) [2023-02-14 01:17:28,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 01:17:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 01:17:28,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 01:17:28,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:17:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-14 01:17:28,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 01:17:28,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:17:28,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30840714] [2023-02-14 01:17:28,657 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 01:17:28,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652283561] [2023-02-14 01:17:28,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652283561] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 01:17:28,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 01:17:28,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-14 01:17:28,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254711258] [2023-02-14 01:17:28,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 01:17:28,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-14 01:17:28,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:17:28,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 01:17:28,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-14 01:17:28,659 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-14 01:17:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:17:28,707 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2023-02-14 01:17:28,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 01:17:28,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2023-02-14 01:17:28,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:17:28,708 INFO L225 Difference]: With dead ends: 39 [2023-02-14 01:17:28,709 INFO L226 Difference]: Without dead ends: 32 [2023-02-14 01:17:28,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-14 01:17:28,710 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 01:17:28,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 69 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 01:17:28,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-14 01:17:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2023-02-14 01:17:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-14 01:17:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2023-02-14 01:17:28,715 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 30 [2023-02-14 01:17:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:17:28,715 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2023-02-14 01:17:28,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-14 01:17:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-02-14 01:17:28,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-14 01:17:28,716 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:17:28,717 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:17:28,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 01:17:28,922 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 [2023-02-14 01:17:28,922 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:17:28,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:17:28,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1371702355, now seen corresponding path program 1 times [2023-02-14 01:17:28,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:17:28,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962754956] [2023-02-14 01:17:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:28,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:17:28,947 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 01:17:28,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811070750] [2023-02-14 01:17:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:28,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:17:28,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:17:28,949 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) [2023-02-14 01:17:28,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 01:17:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 01:17:28,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-14 01:17:28,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:17:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-14 01:17:29,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 01:17:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-14 01:17:35,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:17:35,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962754956] [2023-02-14 01:17:35,214 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 01:17:35,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811070750] [2023-02-14 01:17:35,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811070750] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-14 01:17:35,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-14 01:17:35,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-02-14 01:17:35,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861882085] [2023-02-14 01:17:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 01:17:35,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-14 01:17:35,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:17:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-14 01:17:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=120, Unknown=1, NotChecked=0, Total=156 [2023-02-14 01:17:35,215 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-14 01:17:36,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-14 01:17:36,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:17:36,622 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2023-02-14 01:17:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-14 01:17:36,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2023-02-14 01:17:36,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:17:36,624 INFO L225 Difference]: With dead ends: 43 [2023-02-14 01:17:36,624 INFO L226 Difference]: Without dead ends: 41 [2023-02-14 01:17:36,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2023-02-14 01:17:36,625 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 11 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-14 01:17:36,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 79 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-14 01:17:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-14 01:17:36,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2023-02-14 01:17:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 28 states have internal predecessors, (32), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 01:17:36,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2023-02-14 01:17:36,640 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 33 [2023-02-14 01:17:36,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:17:36,640 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2023-02-14 01:17:36,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-14 01:17:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2023-02-14 01:17:36,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-14 01:17:36,643 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:17:36,643 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:17:36,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-14 01:17:36,848 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 [2023-02-14 01:17:36,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:17:36,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:17:36,849 INFO L85 PathProgramCache]: Analyzing trace with hash 403305007, now seen corresponding path program 1 times [2023-02-14 01:17:36,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:17:36,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031450448] [2023-02-14 01:17:36,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:36,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:17:36,865 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 01:17:36,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470864348] [2023-02-14 01:17:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:36,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:17:36,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:17:36,868 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) [2023-02-14 01:17:36,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 01:17:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 01:17:36,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-14 01:17:36,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:17:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-14 01:17:37,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 01:17:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-14 01:17:37,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:17:37,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031450448] [2023-02-14 01:17:37,508 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 01:17:37,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470864348] [2023-02-14 01:17:37,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470864348] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 01:17:37,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-14 01:17:37,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2023-02-14 01:17:37,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100700466] [2023-02-14 01:17:37,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-14 01:17:37,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-14 01:17:37,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:17:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-14 01:17:37,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-02-14 01:17:37,511 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 13 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-14 01:17:38,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:17:38,150 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions. [2023-02-14 01:17:38,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-14 01:17:38,151 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 13 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 33 [2023-02-14 01:17:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:17:38,152 INFO L225 Difference]: With dead ends: 68 [2023-02-14 01:17:38,152 INFO L226 Difference]: Without dead ends: 61 [2023-02-14 01:17:38,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2023-02-14 01:17:38,153 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 01:17:38,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 120 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-14 01:17:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-14 01:17:38,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2023-02-14 01:17:38,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.255813953488372) internal successors, (54), 44 states have internal predecessors, (54), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-14 01:17:38,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2023-02-14 01:17:38,166 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 33 [2023-02-14 01:17:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:17:38,166 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2023-02-14 01:17:38,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 13 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-14 01:17:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2023-02-14 01:17:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-14 01:17:38,169 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:17:38,169 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:17:38,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-14 01:17:38,369 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 [2023-02-14 01:17:38,370 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:17:38,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:17:38,370 INFO L85 PathProgramCache]: Analyzing trace with hash 685673296, now seen corresponding path program 1 times [2023-02-14 01:17:38,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:17:38,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342019548] [2023-02-14 01:17:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:38,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:17:38,378 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 01:17:38,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772006535] [2023-02-14 01:17:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:38,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:17:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:17:38,383 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) [2023-02-14 01:17:38,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-14 01:17:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 01:17:38,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-14 01:17:38,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:17:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-14 01:17:38,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 01:17:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-14 01:17:38,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:17:38,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342019548] [2023-02-14 01:17:38,551 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 01:17:38,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772006535] [2023-02-14 01:17:38,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772006535] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 01:17:38,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-14 01:17:38,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2023-02-14 01:17:38,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425045012] [2023-02-14 01:17:38,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-14 01:17:38,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-14 01:17:38,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:17:38,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-14 01:17:38,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-02-14 01:17:38,553 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand has 11 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-14 01:17:38,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:17:38,914 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2023-02-14 01:17:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-14 01:17:38,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2023-02-14 01:17:38,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:17:38,915 INFO L225 Difference]: With dead ends: 67 [2023-02-14 01:17:38,915 INFO L226 Difference]: Without dead ends: 60 [2023-02-14 01:17:38,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-02-14 01:17:38,916 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 01:17:38,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 111 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-14 01:17:38,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-14 01:17:38,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2023-02-14 01:17:38,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-14 01:17:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 68 transitions. [2023-02-14 01:17:38,923 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 68 transitions. Word has length 39 [2023-02-14 01:17:38,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:17:38,923 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 68 transitions. [2023-02-14 01:17:38,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-14 01:17:38,923 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2023-02-14 01:17:38,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-14 01:17:38,924 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:17:38,924 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:17:38,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-14 01:17:39,129 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 [2023-02-14 01:17:39,129 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:17:39,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:17:39,130 INFO L85 PathProgramCache]: Analyzing trace with hash -662815268, now seen corresponding path program 1 times [2023-02-14 01:17:39,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:17:39,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212176560] [2023-02-14 01:17:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:39,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:17:39,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 01:17:39,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201334495] [2023-02-14 01:17:39,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:17:39,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:17:39,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:17:39,152 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) [2023-02-14 01:17:39,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-14 01:17:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 01:17:39,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-14 01:17:39,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:17:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-14 01:17:39,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 01:18:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-14 01:18:02,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:18:02,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212176560] [2023-02-14 01:18:02,039 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 01:18:02,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201334495] [2023-02-14 01:18:02,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201334495] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 01:18:02,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-14 01:18:02,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2023-02-14 01:18:02,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946095484] [2023-02-14 01:18:02,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-14 01:18:02,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-14 01:18:02,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:18:02,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-14 01:18:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=215, Unknown=3, NotChecked=0, Total=272 [2023-02-14 01:18:02,041 INFO L87 Difference]: Start difference. First operand 58 states and 68 transitions. Second operand has 17 states, 17 states have (on average 2.0) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-02-14 01:18:12,312 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 63 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-14 01:18:14,317 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 [] [2023-02-14 01:18:24,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:18:24,555 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2023-02-14 01:18:24,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-14 01:18:24,556 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.0) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 42 [2023-02-14 01:18:24,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:18:24,556 INFO L225 Difference]: With dead ends: 86 [2023-02-14 01:18:24,556 INFO L226 Difference]: Without dead ends: 84 [2023-02-14 01:18:24,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=113, Invalid=436, Unknown=3, NotChecked=0, Total=552 [2023-02-14 01:18:24,557 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-02-14 01:18:24,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 170 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 259 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2023-02-14 01:18:24,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-02-14 01:18:24,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2023-02-14 01:18:24,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 62 states have internal predecessors, (73), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-02-14 01:18:24,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 99 transitions. [2023-02-14 01:18:24,573 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 99 transitions. Word has length 42 [2023-02-14 01:18:24,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:18:24,574 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 99 transitions. [2023-02-14 01:18:24,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-02-14 01:18:24,575 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2023-02-14 01:18:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-02-14 01:18:24,581 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:18:24,581 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:18:24,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-14 01:18:24,788 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 [2023-02-14 01:18:24,789 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:18:24,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:18:24,789 INFO L85 PathProgramCache]: Analyzing trace with hash -55550255, now seen corresponding path program 2 times [2023-02-14 01:18:24,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:18:24,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051499489] [2023-02-14 01:18:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:18:24,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:18:24,812 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 01:18:24,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60642184] [2023-02-14 01:18:24,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 01:18:24,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:18:24,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:18:24,821 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) [2023-02-14 01:18:24,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-14 01:18:24,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 01:18:24,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 01:18:24,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-14 01:18:24,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:18:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-14 01:18:25,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 01:18:32,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:18:32,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051499489] [2023-02-14 01:18:32,404 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 01:18:32,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60642184] [2023-02-14 01:18:32,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60642184] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 01:18:32,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-14 01:18:32,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-02-14 01:18:32,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308956331] [2023-02-14 01:18:32,405 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-14 01:18:32,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-14 01:18:32,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:18:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-14 01:18:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2023-02-14 01:18:32,406 INFO L87 Difference]: Start difference. First operand 82 states and 99 transitions. Second operand has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-14 01:18:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:18:32,902 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2023-02-14 01:18:32,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-14 01:18:32,902 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 51 [2023-02-14 01:18:32,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:18:32,903 INFO L225 Difference]: With dead ends: 103 [2023-02-14 01:18:32,903 INFO L226 Difference]: Without dead ends: 101 [2023-02-14 01:18:32,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2023-02-14 01:18:32,904 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 16 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-14 01:18:32,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 125 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-14 01:18:32,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-02-14 01:18:32,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2023-02-14 01:18:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 74 states have (on average 1.162162162162162) internal successors, (86), 75 states have internal predecessors, (86), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-14 01:18:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 116 transitions. [2023-02-14 01:18:32,917 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 116 transitions. Word has length 51 [2023-02-14 01:18:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:18:32,917 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 116 transitions. [2023-02-14 01:18:32,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-14 01:18:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 116 transitions. [2023-02-14 01:18:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-14 01:18:32,918 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 01:18:32,918 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 01:18:32,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-14 01:18:33,126 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 [2023-02-14 01:18:33,126 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 01:18:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 01:18:33,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1448142086, now seen corresponding path program 3 times [2023-02-14 01:18:33,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 01:18:33,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867059676] [2023-02-14 01:18:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 01:18:33,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 01:18:33,135 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 01:18:33,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119077547] [2023-02-14 01:18:33,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 01:18:33,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 01:18:33,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 01:18:33,137 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) [2023-02-14 01:18:33,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-14 01:18:33,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-14 01:18:33,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 01:18:33,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-14 01:18:33,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 01:18:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-14 01:18:33,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 01:18:33,998 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 40 proven. 11 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-02-14 01:18:33,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 01:18:33,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867059676] [2023-02-14 01:18:33,999 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 01:18:33,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119077547] [2023-02-14 01:18:33,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119077547] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 01:18:33,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-14 01:18:33,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 22 [2023-02-14 01:18:34,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857728184] [2023-02-14 01:18:34,001 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-14 01:18:34,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-14 01:18:34,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 01:18:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-14 01:18:34,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2023-02-14 01:18:34,004 INFO L87 Difference]: Start difference. First operand 98 states and 116 transitions. Second operand has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 7 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-02-14 01:18:35,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 01:18:35,003 INFO L93 Difference]: Finished difference Result 110 states and 131 transitions. [2023-02-14 01:18:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-14 01:18:35,004 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 7 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 60 [2023-02-14 01:18:35,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 01:18:35,004 INFO L225 Difference]: With dead ends: 110 [2023-02-14 01:18:35,004 INFO L226 Difference]: Without dead ends: 0 [2023-02-14 01:18:35,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=654, Unknown=0, NotChecked=0, Total=812 [2023-02-14 01:18:35,006 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-14 01:18:35,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 124 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-14 01:18:35,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-14 01:18:35,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-14 01:18:35,007 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) [2023-02-14 01:18:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 01:18:35,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2023-02-14 01:18:35,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 01:18:35,007 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 01:18:35,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 7 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-02-14 01:18:35,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-14 01:18:35,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-14 01:18:35,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-14 01:18:35,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-14 01:18:35,215 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 [2023-02-14 01:18:35,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-14 01:18:37,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-14 01:18:37,534 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2023-02-14 01:18:37,534 INFO L895 garLoopResultBuilder]: At program point L27-1(line 27) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50)) [2023-02-14 01:18:37,534 INFO L902 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true [2023-02-14 01:18:37,534 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-02-14 01:18:37,534 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-02-14 01:18:37,534 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-14 01:18:37,534 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 20 49) the Hoare annotation is: true [2023-02-14 01:18:37,535 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 45) the Hoare annotation is: (let ((.cse4 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse5 (<= |ULTIMATE.start_main_~b~0#1| 50))) (or (and (exists ((|aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63| Int) (|aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63| Int)) (let ((.cse2 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63| 2))) (let ((.cse0 (+ .cse2 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|)) (.cse1 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52| 2) .cse2 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|))) (and (< .cse0 2) (<= 0 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|) (< .cse1 2) (< |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63| 2) (<= 0 .cse0) (<= 0 .cse1) (<= 0 (+ (* 2 |ULTIMATE.start_main_~y~0#1|) .cse2 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|)) (not (= .cse1 1)) (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) (let ((.cse3 (div |ULTIMATE.start_main_~x~0#1| 2))) (+ (* .cse3 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|) |ULTIMATE.start_main_~z~0#1| (* 2 (* .cse3 |ULTIMATE.start_main_~y~0#1|))))))))) .cse4 (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) .cse5) (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse4 (= |ULTIMATE.start_main_~z~0#1| 0) .cse5 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)))) [2023-02-14 01:18:37,535 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-14 01:18:37,535 INFO L895 garLoopResultBuilder]: At program point L34-3(lines 34 45) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (and (<= 1 |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~z~0#1| .cse0) (or (not (<= 1 (mod |ULTIMATE.start_main_~y~0#1| 2))) (< |ULTIMATE.start_main_~y~0#1| 0) (= (+ (* 2 (* (div (+ (- 1) |ULTIMATE.start_main_~y~0#1|) 2) |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) .cse0)))) [2023-02-14 01:18:37,535 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-14 01:18:37,535 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-02-14 01:18:37,535 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2023-02-14 01:18:37,535 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 42) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse4 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse5 (<= |ULTIMATE.start_main_~b~0#1| 50))) (or (and (exists ((|aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63| Int) (|aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63| Int)) (let ((.cse2 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63| 2))) (let ((.cse0 (+ .cse2 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|)) (.cse1 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52| 2) .cse2 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|))) (and (< .cse0 2) (<= 0 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|) (< .cse1 2) (< |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63| 2) (<= 0 .cse0) (<= 0 .cse1) (<= 0 (+ (* 2 |ULTIMATE.start_main_~y~0#1|) .cse2 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|)) (not (= .cse1 1)) (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) (let ((.cse3 (div |ULTIMATE.start_main_~x~0#1| 2))) (+ (* .cse3 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63|) |ULTIMATE.start_main_~z~0#1| (* 2 (* .cse3 |ULTIMATE.start_main_~y~0#1|))))))))) .cse4 (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) .cse5) (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse4 (= |ULTIMATE.start_main_~z~0#1| 0) .cse5 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)))) [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 34 45) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 11) the Hoare annotation is: true [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 11) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 9 11) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 15) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 16) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point L13-2(lines 12 18) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 12 18) no Hoare annotation was computed. [2023-02-14 01:18:37,536 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 12 18) the Hoare annotation is: true [2023-02-14 01:18:37,536 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2023-02-14 01:18:37,539 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2023-02-14 01:18:37,540 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 01:18:37,553 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,553 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,555 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,555 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,558 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,558 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,558 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,558 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,558 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,558 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,559 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,559 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,559 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,559 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,559 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,559 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,559 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,559 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,563 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,565 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,565 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,566 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,566 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,566 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,566 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,566 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,566 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,566 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,567 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,567 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,567 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,575 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,575 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,575 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,575 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,575 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 01:18:37 BoogieIcfgContainer [2023-02-14 01:18:37,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 01:18:37,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 01:18:37,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 01:18:37,578 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 01:18:37,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 01:17:27" (3/4) ... [2023-02-14 01:18:37,580 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-14 01:18:37,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-14 01:18:37,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-14 01:18:37,592 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-14 01:18:37,592 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-14 01:18:37,592 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-14 01:18:37,592 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-14 01:18:37,635 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52 : int, aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 : int, aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 : int :: (((((((aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 < 2 && 0 <= aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63) && aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52 * 2 + aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 < 2) && aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 < 2) && 0 <= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63) && 0 <= aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52 * 2 + aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63) && 0 <= 2 * y + aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63) && !(aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52 * 2 + aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 == 1)) && a * b == x / 2 * aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 + z + 2 * (x / 2 * y)) && 1 <= b) && x % 2 == 0) && b <= 50) || ((((b == y && 1 <= b) && z == 0) && b <= 50) && a == x) [2023-02-14 01:18:37,640 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 01:18:37,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 01:18:37,641 INFO L158 Benchmark]: Toolchain (without parser) took 70592.23ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 69.0MB in the beginning and 64.4MB in the end (delta: 4.6MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2023-02-14 01:18:37,641 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 01:18:37,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.70ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 134.1MB in the end (delta: -65.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-02-14 01:18:37,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.00ms. Allocated memory is still 167.8MB. Free memory was 133.9MB in the beginning and 132.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 01:18:37,641 INFO L158 Benchmark]: Boogie Preprocessor took 12.84ms. Allocated memory is still 167.8MB. Free memory was 132.7MB in the beginning and 131.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 01:18:37,642 INFO L158 Benchmark]: RCFGBuilder took 227.43ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 120.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 01:18:37,642 INFO L158 Benchmark]: TraceAbstraction took 70117.34ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 119.4MB in the beginning and 67.5MB in the end (delta: 51.8MB). Peak memory consumption was 85.1MB. Max. memory is 16.1GB. [2023-02-14 01:18:37,642 INFO L158 Benchmark]: Witness Printer took 62.76ms. Allocated memory is still 201.3MB. Free memory was 67.5MB in the beginning and 64.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 01:18:37,643 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 134.2MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.70ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 134.1MB in the end (delta: -65.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.00ms. Allocated memory is still 167.8MB. Free memory was 133.9MB in the beginning and 132.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.84ms. Allocated memory is still 167.8MB. Free memory was 132.7MB in the beginning and 131.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 227.43ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 120.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 70117.34ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 119.4MB in the beginning and 67.5MB in the end (delta: 51.8MB). Peak memory consumption was 85.1MB. Max. memory is 16.1GB. * Witness Printer took 62.76ms. Allocated memory is still 201.3MB. Free memory was 67.5MB in the beginning and 64.4MB 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[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,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: 15]: 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, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.0s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 26.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 900 SdHoareTripleChecker+Invalid, 8.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 711 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1461 IncrementalHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 189 mSDtfsCounter, 1461 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 585 GetRequests, 454 SyntacticMatches, 3 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 48.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=8, InterpolantAutomatonStates: 92, 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, 9 MinimizatonAttempts, 17 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 32 PreInvPairs, 60 NumberOfFragments, 267 HoareAnnotationTreeSize, 32 FomulaSimplifications, 102 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2598 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 38.3s InterpolantComputationTime, 360 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 529 ConstructedInterpolants, 3 QuantifiedInterpolants, 3432 SizeOfPredicates, 27 NumberOfNonLiveVariables, 889 ConjunctsInSsa, 178 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 356/421 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: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,665 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,666 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,667 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,667 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,667 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,667 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,667 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52,QUANTIFIED] [2023-02-14 01:18:37,667 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,667 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] [2023-02-14 01:18:37,667 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63,QUANTIFIED] Derived loop invariant: ((((\exists aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52 : int, aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 : int, aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 : int :: (((((((aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 < 2 && 0 <= aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63) && aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52 * 2 + aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 < 2) && aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 < 2) && 0 <= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63) && 0 <= aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52 * 2 + aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63) && 0 <= 2 * y + aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63) && !(aux_div_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52 * 2 + aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 * 2 + aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 == 1)) && a * b == x / 2 * aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_41_52_63 + z + 2 * (x / 2 * y)) && 1 <= b) && x % 2 == 0) && b <= 50) || ((((b == y && 1 <= b) && z == 0) && b <= 50) && a == x) RESULT: Ultimate proved your program to be correct! [2023-02-14 01:18:37,719 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