./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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/ps5-ll_valuebound2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c1067a232ccde2ed577e0679695f102973a28bf8615edad0a3c87e54d273eb4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 16:33:02,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 16:33:02,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 16:33:02,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 16:33:02,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 16:33:02,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 16:33:02,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 16:33:02,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 16:33:02,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 16:33:02,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 16:33:02,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 16:33:02,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 16:33:02,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 16:33:02,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 16:33:02,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 16:33:02,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 16:33:02,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 16:33:02,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 16:33:02,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 16:33:02,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 16:33:02,103 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 16:33:02,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 16:33:02,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 16:33:02,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 16:33:02,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 16:33:02,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 16:33:02,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 16:33:02,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 16:33:02,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 16:33:02,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 16:33:02,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 16:33:02,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 16:33:02,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 16:33:02,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 16:33:02,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 16:33:02,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 16:33:02,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 16:33:02,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 16:33:02,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 16:33:02,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 16:33:02,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 16:33:02,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 16:33:02,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 16:33:02,146 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 16:33:02,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 16:33:02,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 16:33:02,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 16:33:02,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 16:33:02,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 16:33:02,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 16:33:02,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 16:33:02,148 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 16:33:02,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 16:33:02,149 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 16:33:02,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 16:33:02,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 16:33:02,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 16:33:02,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 16:33:02,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 16:33:02,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 16:33:02,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 16:33:02,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 16:33:02,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 16:33:02,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 16:33:02,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 16:33:02,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 16:33:02,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 16:33:02,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 16:33:02,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 16:33:02,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 16:33:02,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 16:33:02,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 16:33:02,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 16:33:02,152 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 16:33:02,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 16:33:02,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 16:33:02,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c1067a232ccde2ed577e0679695f102973a28bf8615edad0a3c87e54d273eb4 [2022-07-19 16:33:02,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 16:33:02,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 16:33:02,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 16:33:02,331 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 16:33:02,332 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 16:33:02,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2022-07-19 16:33:02,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57854d6c0/b69d4c24579f490e928f17a89d4a187e/FLAGd54d5acba [2022-07-19 16:33:02,661 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 16:33:02,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2022-07-19 16:33:02,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57854d6c0/b69d4c24579f490e928f17a89d4a187e/FLAGd54d5acba [2022-07-19 16:33:03,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57854d6c0/b69d4c24579f490e928f17a89d4a187e [2022-07-19 16:33:03,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 16:33:03,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 16:33:03,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 16:33:03,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 16:33:03,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 16:33:03,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13043fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03, skipping insertion in model container [2022-07-19 16:33:03,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 16:33:03,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 16:33:03,229 WARN L230 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/ps5-ll_valuebound2.c[458,471] [2022-07-19 16:33:03,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 16:33:03,243 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 16:33:03,250 WARN L230 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/ps5-ll_valuebound2.c[458,471] [2022-07-19 16:33:03,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 16:33:03,262 INFO L208 MainTranslator]: Completed translation [2022-07-19 16:33:03,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03 WrapperNode [2022-07-19 16:33:03,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 16:33:03,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 16:33:03,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 16:33:03,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 16:33:03,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,284 INFO L137 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2022-07-19 16:33:03,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 16:33:03,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 16:33:03,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 16:33:03,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 16:33:03,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 16:33:03,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 16:33:03,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 16:33:03,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 16:33:03,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (1/1) ... [2022-07-19 16:33:03,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 16:33:03,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:33:03,330 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) [2022-07-19 16:33:03,331 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 [2022-07-19 16:33:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 16:33:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 16:33:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 16:33:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 16:33:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 16:33:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 16:33:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 16:33:03,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 16:33:03,400 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 16:33:03,401 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 16:33:03,470 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 16:33:03,474 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 16:33:03,474 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 16:33:03,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 04:33:03 BoogieIcfgContainer [2022-07-19 16:33:03,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 16:33:03,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 16:33:03,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 16:33:03,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 16:33:03,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 04:33:03" (1/3) ... [2022-07-19 16:33:03,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c72390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 04:33:03, skipping insertion in model container [2022-07-19 16:33:03,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:33:03" (2/3) ... [2022-07-19 16:33:03,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c72390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 04:33:03, skipping insertion in model container [2022-07-19 16:33:03,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 04:33:03" (3/3) ... [2022-07-19 16:33:03,481 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound2.c [2022-07-19 16:33:03,491 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 16:33:03,491 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 16:33:03,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 16:33:03,535 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17606dd2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@407f922 [2022-07-19 16:33:03,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 16:33:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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) [2022-07-19 16:33:03,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 16:33:03,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:33:03,549 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:33:03,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:33:03,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:33:03,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1845349065, now seen corresponding path program 1 times [2022-07-19 16:33:03,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:33:03,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371844642] [2022-07-19 16:33:03,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:03,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:33:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:33:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:33:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:33:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:33:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:33:03,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 16:33:03,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:33:03,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371844642] [2022-07-19 16:33:03,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371844642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:33:03,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:33:03,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 16:33:03,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961081433] [2022-07-19 16:33:03,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:33:03,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 16:33:03,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:33:03,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 16:33:03,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 16:33:03,702 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 16:33:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:33:03,718 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2022-07-19 16:33:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 16:33:03,719 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-07-19 16:33:03,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:33:03,723 INFO L225 Difference]: With dead ends: 45 [2022-07-19 16:33:03,723 INFO L226 Difference]: Without dead ends: 20 [2022-07-19 16:33:03,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 16:33:03,729 INFO L413 NwaCegarLoop]: 27 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, 27 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 [2022-07-19 16:33:03,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 16:33:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-19 16:33:03,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-07-19 16:33:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-07-19 16:33:03,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-07-19 16:33:03,751 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 18 [2022-07-19 16:33:03,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:33:03,751 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-07-19 16:33:03,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 16:33:03,752 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-07-19 16:33:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 16:33:03,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:33:03,753 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:33:03,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 16:33:03,754 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:33:03,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:33:03,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1506842435, now seen corresponding path program 1 times [2022-07-19 16:33:03,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:33:03,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927262226] [2022-07-19 16:33:03,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:03,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:33:03,765 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 16:33:03,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537187532] [2022-07-19 16:33:03,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:03,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:03,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:33:03,768 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) [2022-07-19 16:33:03,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 16:33:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:33:03,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 16:33:03,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:33:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 16:33:03,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:33:03,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:33:03,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927262226] [2022-07-19 16:33:03,891 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 16:33:03,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537187532] [2022-07-19 16:33:03,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537187532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:33:03,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:33:03,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 16:33:03,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809763608] [2022-07-19 16:33:03,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:33:03,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:33:03,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:33:03,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:33:03,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 16:33:03,894 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 16:33:03,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:33:03,966 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-07-19 16:33:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:33:03,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-07-19 16:33:03,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:33:03,968 INFO L225 Difference]: With dead ends: 31 [2022-07-19 16:33:03,968 INFO L226 Difference]: Without dead ends: 27 [2022-07-19 16:33:03,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:33:03,969 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:33:03,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 69 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 16:33:03,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-19 16:33:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-07-19 16:33:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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) [2022-07-19 16:33:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-07-19 16:33:03,975 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2022-07-19 16:33:03,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:33:03,976 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-07-19 16:33:03,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 16:33:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-07-19 16:33:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 16:33:03,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:33:03,977 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:33:03,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 16:33:04,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:04,183 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:33:04,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:33:04,184 INFO L85 PathProgramCache]: Analyzing trace with hash 903983968, now seen corresponding path program 1 times [2022-07-19 16:33:04,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:33:04,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025611773] [2022-07-19 16:33:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:04,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:33:04,193 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 16:33:04,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536295224] [2022-07-19 16:33:04,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:04,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:04,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:33:04,198 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) [2022-07-19 16:33:04,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 16:33:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:33:04,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-19 16:33:04,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:33:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 16:33:04,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 16:33:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 16:33:08,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:33:08,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025611773] [2022-07-19 16:33:08,423 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 16:33:08,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536295224] [2022-07-19 16:33:08,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536295224] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-19 16:33:08,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:33:08,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-07-19 16:33:08,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868519078] [2022-07-19 16:33:08,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:33:08,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:33:08,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:33:08,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:33:08,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=28, Unknown=1, NotChecked=0, Total=42 [2022-07-19 16:33:08,425 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 16:33:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:33:08,561 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-07-19 16:33:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:33:08,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-07-19 16:33:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:33:08,562 INFO L225 Difference]: With dead ends: 33 [2022-07-19 16:33:08,562 INFO L226 Difference]: Without dead ends: 29 [2022-07-19 16:33:08,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2022-07-19 16:33:08,564 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:33:08,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 59 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 16:33:08,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-19 16:33:08,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-07-19 16:33:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 16:33:08,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-07-19 16:33:08,569 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 25 [2022-07-19 16:33:08,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:33:08,575 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-07-19 16:33:08,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 16:33:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-07-19 16:33:08,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-19 16:33:08,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:33:08,576 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:33:08,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 16:33:08,794 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,SelfDestructingSolverStorable2 [2022-07-19 16:33:08,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:33:08,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:33:08,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1648043046, now seen corresponding path program 1 times [2022-07-19 16:33:08,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:33:08,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002079104] [2022-07-19 16:33:08,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:08,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:33:08,804 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 16:33:08,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318351431] [2022-07-19 16:33:08,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:08,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:08,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:33:08,806 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) [2022-07-19 16:33:08,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 16:33:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:33:08,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-19 16:33:08,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:33:08,967 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-19 16:33:08,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 16:33:09,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:33:09,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002079104] [2022-07-19 16:33:09,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 16:33:09,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318351431] [2022-07-19 16:33:09,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318351431] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:33:09,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:33:09,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2022-07-19 16:33:09,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100787234] [2022-07-19 16:33:09,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 16:33:09,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 16:33:09,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:33:09,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 16:33:09,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:33:09,145 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-19 16:33:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:33:09,227 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-07-19 16:33:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:33:09,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 36 [2022-07-19 16:33:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:33:09,228 INFO L225 Difference]: With dead ends: 38 [2022-07-19 16:33:09,228 INFO L226 Difference]: Without dead ends: 32 [2022-07-19 16:33:09,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:33:09,229 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:33:09,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 111 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 16:33:09,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-19 16:33:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-07-19 16:33:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-19 16:33:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-07-19 16:33:09,234 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 36 [2022-07-19 16:33:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:33:09,234 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-07-19 16:33:09,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-19 16:33:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-07-19 16:33:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-19 16:33:09,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:33:09,235 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:33:09,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 16:33:09,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:09,436 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:33:09,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:33:09,437 INFO L85 PathProgramCache]: Analyzing trace with hash -426505545, now seen corresponding path program 2 times [2022-07-19 16:33:09,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:33:09,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975158685] [2022-07-19 16:33:09,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:09,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:33:09,448 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 16:33:09,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242142239] [2022-07-19 16:33:09,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 16:33:09,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:09,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:33:09,454 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) [2022-07-19 16:33:09,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 16:33:09,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 16:33:09,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 16:33:09,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-19 16:33:09,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:33:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-19 16:33:09,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 16:33:13,849 WARN L833 $PredicateComparison]: unable to prove that (or (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10) (* |c_ULTIMATE.start_main_~y~0#1| 29) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6)) 30) 0)) (forall ((|ULTIMATE.start_main_~k~0#1| Int)) (or (let ((.cse0 (+ |c_ULTIMATE.start_main_~y~0#1| 1))) (= (* |ULTIMATE.start_main_~k~0#1| .cse0) (* .cse0 .cse0))) (not (< |c_ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|)) (< (+ |c_ULTIMATE.start_main_~c~0#1| 1) |ULTIMATE.start_main_~k~0#1|)))) is different from false [2022-07-19 16:33:13,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:33:13,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975158685] [2022-07-19 16:33:13,852 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 16:33:13,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242142239] [2022-07-19 16:33:13,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242142239] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:33:13,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:33:13,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2022-07-19 16:33:13,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893943277] [2022-07-19 16:33:13,853 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 16:33:13,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 16:33:13,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:33:13,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 16:33:13,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=125, Unknown=1, NotChecked=22, Total=182 [2022-07-19 16:33:13,854 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 5 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) [2022-07-19 16:33:13,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:33:13,985 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-07-19 16:33:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 16:33:13,986 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 5 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 43 [2022-07-19 16:33:13,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:33:13,986 INFO L225 Difference]: With dead ends: 41 [2022-07-19 16:33:13,986 INFO L226 Difference]: Without dead ends: 35 [2022-07-19 16:33:13,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=51, Invalid=192, Unknown=1, NotChecked=28, Total=272 [2022-07-19 16:33:13,987 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:33:13,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 127 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 16:33:13,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-07-19 16:33:13,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-07-19 16:33:13,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 16:33:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-07-19 16:33:13,992 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 43 [2022-07-19 16:33:13,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:33:13,993 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-07-19 16:33:13,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 5 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) [2022-07-19 16:33:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-07-19 16:33:13,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-19 16:33:13,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:33:13,994 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:33:14,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-19 16:33:14,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:14,198 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:33:14,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:33:14,198 INFO L85 PathProgramCache]: Analyzing trace with hash 173594938, now seen corresponding path program 3 times [2022-07-19 16:33:14,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:33:14,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661186406] [2022-07-19 16:33:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:33:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:33:14,208 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 16:33:14,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475335618] [2022-07-19 16:33:14,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 16:33:14,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:14,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:33:14,223 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) [2022-07-19 16:33:14,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 16:33:14,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-07-19 16:33:14,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 16:33:14,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 16:33:14,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:33:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-19 16:33:14,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 16:33:14,514 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-19 16:33:14,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:33:14,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661186406] [2022-07-19 16:33:14,514 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 16:33:14,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475335618] [2022-07-19 16:33:14,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475335618] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 16:33:14,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 16:33:14,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-19 16:33:14,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49722527] [2022-07-19 16:33:14,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 16:33:14,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 16:33:14,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:33:14,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 16:33:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:33:14,516 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 11 states have internal predecessors, (34), 10 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 9 states have call predecessors, (14), 10 states have call successors, (14) [2022-07-19 16:33:14,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:33:14,555 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-07-19 16:33:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 16:33:14,555 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 11 states have internal predecessors, (34), 10 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 9 states have call predecessors, (14), 10 states have call successors, (14) Word has length 50 [2022-07-19 16:33:14,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:33:14,555 INFO L225 Difference]: With dead ends: 41 [2022-07-19 16:33:14,555 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 16:33:14,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-07-19 16:33:14,556 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:33:14,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 79 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 16:33:14,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 16:33:14,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 16:33:14,557 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) [2022-07-19 16:33:14,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 16:33:14,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2022-07-19 16:33:14,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:33:14,557 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 16:33:14,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 11 states have internal predecessors, (34), 10 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 9 states have call predecessors, (14), 10 states have call successors, (14) [2022-07-19 16:33:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 16:33:14,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 16:33:14,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 16:33:14,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 16:33:14,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:33:14,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 16:33:15,010 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 16:33:15,011 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~k~0#1| 2)) (.cse1 (= (+ (* 30 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 10) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 15))))) (or (and (<= 2 |ULTIMATE.start_main_~c~0#1|) .cse0 (= 2 |ULTIMATE.start_main_~y~0#1|) (< 1 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2) .cse1) (and .cse0 (= |ULTIMATE.start_main_~c~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) (< 0 |ULTIMATE.start_main_~k~0#1|) .cse1) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~c~0#1| 0) .cse0 (= |ULTIMATE.start_main_~y~0#1| 0) .cse1))) [2022-07-19 16:33:15,011 INFO L899 garLoopResultBuilder]: For program point L29-1(lines 28 37) no Hoare annotation was computed. [2022-07-19 16:33:15,011 INFO L902 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: true [2022-07-19 16:33:15,011 INFO L895 garLoopResultBuilder]: At program point L21-1(line 21) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2)) [2022-07-19 16:33:15,011 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-07-19 16:33:15,011 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 16:33:15,011 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 16:33:15,011 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 16:33:15,011 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~k~0#1| 2)) (.cse1 (= (+ (* 30 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 10) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 15))))) (or (and (<= 2 |ULTIMATE.start_main_~c~0#1|) .cse0 (= 2 |ULTIMATE.start_main_~y~0#1|) (< 1 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2) .cse1) (and .cse0 (= |ULTIMATE.start_main_~c~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) (< 0 |ULTIMATE.start_main_~k~0#1|) .cse1) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~c~0#1| 0) .cse0 (= |ULTIMATE.start_main_~y~0#1| 0) .cse1))) [2022-07-19 16:33:15,011 INFO L895 garLoopResultBuilder]: At program point L28-3(lines 28 37) the Hoare annotation is: (let ((.cse0 (= (+ (* 30 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 10) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 15))))) (or (and (<= |ULTIMATE.start_main_~k~0#1| 1) (<= |ULTIMATE.start_main_~c~0#1| 1) (= (+ (- 1) |ULTIMATE.start_main_~y~0#1|) 0) (< 0 |ULTIMATE.start_main_~k~0#1|) .cse0) (and (= |ULTIMATE.start_main_~y~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0)) (and (= (+ (- 2) |ULTIMATE.start_main_~y~0#1|) 0) (<= |ULTIMATE.start_main_~k~0#1| 2) (< 1 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2) .cse0))) [2022-07-19 16:33:15,011 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-07-19 16:33:15,011 INFO L902 garLoopResultBuilder]: At program point L41(lines 17 42) the Hoare annotation is: true [2022-07-19 16:33:15,011 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (let ((.cse0 (= (+ (* 30 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 10) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 15))))) (or (and (<= |ULTIMATE.start_main_~k~0#1| 1) (<= |ULTIMATE.start_main_~c~0#1| 1) (= (+ (- 1) |ULTIMATE.start_main_~y~0#1|) 0) (< 0 |ULTIMATE.start_main_~k~0#1|) .cse0) (and (= |ULTIMATE.start_main_~y~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0)) (and (= (+ (- 2) |ULTIMATE.start_main_~y~0#1|) 0) (<= |ULTIMATE.start_main_~k~0#1| 2) (< 1 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2) .cse0))) [2022-07-19 16:33:15,011 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 6 8) the Hoare annotation is: true [2022-07-19 16:33:15,011 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-07-19 16:33:15,012 INFO L899 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2022-07-19 16:33:15,012 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2022-07-19 16:33:15,012 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2022-07-19 16:33:15,012 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2022-07-19 16:33:15,012 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2022-07-19 16:33:15,012 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2022-07-19 16:33:15,012 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2022-07-19 16:33:15,012 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-07-19 16:33:15,014 INFO L356 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-07-19 16:33:15,015 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 16:33:15,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 04:33:15 BoogieIcfgContainer [2022-07-19 16:33:15,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 16:33:15,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 16:33:15,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 16:33:15,026 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 16:33:15,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 04:33:03" (3/4) ... [2022-07-19 16:33:15,028 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 16:33:15,032 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-19 16:33:15,032 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-19 16:33:15,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-19 16:33:15,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 16:33:15,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 16:33:15,035 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 16:33:15,052 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 16:33:15,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 16:33:15,053 INFO L158 Benchmark]: Toolchain (without parser) took 11952.82ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 69.9MB in the beginning and 90.4MB in the end (delta: -20.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 16:33:15,053 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 16:33:15,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.25ms. Allocated memory is still 98.6MB. Free memory was 69.7MB in the beginning and 74.9MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 16:33:15,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.77ms. Allocated memory is still 98.6MB. Free memory was 74.9MB in the beginning and 73.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 16:33:15,054 INFO L158 Benchmark]: Boogie Preprocessor took 23.17ms. Allocated memory is still 98.6MB. Free memory was 73.3MB in the beginning and 72.5MB in the end (delta: 795.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 16:33:15,054 INFO L158 Benchmark]: RCFGBuilder took 166.50ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 62.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 16:33:15,055 INFO L158 Benchmark]: TraceAbstraction took 11549.62ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.4MB in the beginning and 92.5MB in the end (delta: -30.1MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2022-07-19 16:33:15,055 INFO L158 Benchmark]: Witness Printer took 26.81ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 16:33:15,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.25ms. Allocated memory is still 98.6MB. Free memory was 69.7MB in the beginning and 74.9MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.77ms. Allocated memory is still 98.6MB. Free memory was 74.9MB in the beginning and 73.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.17ms. Allocated memory is still 98.6MB. Free memory was 73.3MB in the beginning and 72.5MB in the end (delta: 795.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 166.50ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 62.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11549.62ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.4MB in the beginning and 92.5MB in the end (delta: -30.1MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Witness Printer took 26.81ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: 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, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 472 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 341 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 314 IncrementalHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 131 mSDtfsCounter, 314 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 292 GetRequests, 240 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 25 PreInvPairs, 39 NumberOfFragments, 453 HoareAnnotationTreeSize, 25 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 801 SizeOfPredicates, 9 NumberOfNonLiveVariables, 481 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 211/238 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((2 <= c && k <= 2) && 2 == y) && 1 < k) && c <= 2) && 30 * x + y == 6 * (y * y * y * y * y) + y * y * y * 10 + y * y * y * y * 15) || ((((k <= 2 && c == 1) && y == 1) && 0 < k) && 30 * x + y == 6 * (y * y * y * y * y) + y * y * y * 10 + y * y * y * y * 15)) || ((((0 <= k && c == 0) && k <= 2) && y == 0) && 30 * x + y == 6 * (y * y * y * y * y) + y * y * y * 10 + y * y * y * y * 15) RESULT: Ultimate proved your program to be correct! [2022-07-19 16:33:15,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE