./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/nested5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/nested5-2.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 5ad780effdbe313ff13ad5bc7233d50356fbf06f53a57c18cd85a4aa46126eb2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 16:11:25,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 16:11:25,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 16:11:25,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 16:11:25,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 16:11:25,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 16:11:25,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 16:11:25,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 16:11:25,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 16:11:25,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 16:11:25,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 16:11:25,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 16:11:25,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 16:11:25,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 16:11:25,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 16:11:25,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 16:11:25,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 16:11:25,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 16:11:25,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 16:11:25,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 16:11:25,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 16:11:25,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 16:11:25,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 16:11:25,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 16:11:25,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 16:11:25,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 16:11:25,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 16:11:25,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 16:11:25,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 16:11:25,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 16:11:25,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 16:11:25,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 16:11:25,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 16:11:25,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 16:11:25,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 16:11:25,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 16:11:25,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 16:11:25,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 16:11:25,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 16:11:25,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 16:11:25,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 16:11:25,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 16:11:25,383 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 16:11:25,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 16:11:25,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 16:11:25,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 16:11:25,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 16:11:25,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 16:11:25,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 16:11:25,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 16:11:25,386 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 16:11:25,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 16:11:25,387 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 16:11:25,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 16:11:25,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 16:11:25,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 16:11:25,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 16:11:25,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 16:11:25,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 16:11:25,388 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 16:11:25,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 16:11:25,388 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 16:11:25,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 16:11:25,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 16:11:25,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 16:11:25,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 16:11:25,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 16:11:25,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 16:11:25,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 16:11:25,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 16:11:25,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 16:11:25,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 16:11:25,390 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 16:11:25,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 16:11:25,390 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 16:11:25,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 16:11:25,390 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 16:11:25,390 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ad780effdbe313ff13ad5bc7233d50356fbf06f53a57c18cd85a4aa46126eb2 [2023-02-18 16:11:25,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 16:11:25,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 16:11:25,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 16:11:25,636 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 16:11:25,636 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 16:11:25,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/nested5-2.c [2023-02-18 16:11:26,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 16:11:26,801 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 16:11:26,802 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/nested5-2.c [2023-02-18 16:11:26,805 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/138a7c4c5/00e2c42f47404713a444854855035b6c/FLAGe0c6a1914 [2023-02-18 16:11:26,821 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/138a7c4c5/00e2c42f47404713a444854855035b6c [2023-02-18 16:11:26,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 16:11:26,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 16:11:26,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 16:11:26,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 16:11:26,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 16:11:26,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a265a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26, skipping insertion in model container [2023-02-18 16:11:26,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 16:11:26,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 16:11:26,929 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/nested5-2.c[321,334] [2023-02-18 16:11:26,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 16:11:26,946 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 16:11:26,953 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/nested5-2.c[321,334] [2023-02-18 16:11:26,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 16:11:26,964 INFO L208 MainTranslator]: Completed translation [2023-02-18 16:11:26,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26 WrapperNode [2023-02-18 16:11:26,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 16:11:26,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 16:11:26,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 16:11:26,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 16:11:26,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,986 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-02-18 16:11:26,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 16:11:26,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 16:11:26,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 16:11:26,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 16:11:26,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:26,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 16:11:27,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 16:11:27,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 16:11:27,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 16:11:27,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (1/1) ... [2023-02-18 16:11:27,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 16:11:27,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:11:27,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 16:11:27,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 16:11:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 16:11:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 16:11:27,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 16:11:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 16:11:27,101 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 16:11:27,103 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 16:11:27,185 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 16:11:27,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 16:11:27,189 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2023-02-18 16:11:27,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:11:27 BoogieIcfgContainer [2023-02-18 16:11:27,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 16:11:27,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 16:11:27,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 16:11:27,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 16:11:27,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 04:11:26" (1/3) ... [2023-02-18 16:11:27,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd41827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 04:11:27, skipping insertion in model container [2023-02-18 16:11:27,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:11:26" (2/3) ... [2023-02-18 16:11:27,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd41827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 04:11:27, skipping insertion in model container [2023-02-18 16:11:27,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:11:27" (3/3) ... [2023-02-18 16:11:27,196 INFO L112 eAbstractionObserver]: Analyzing ICFG nested5-2.c [2023-02-18 16:11:27,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 16:11:27,218 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 16:11:27,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 16:11:27,274 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4481910f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 16:11:27,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 16:11:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:27,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 16:11:27,283 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:11:27,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:11:27,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:11:27,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:11:27,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1296464707, now seen corresponding path program 1 times [2023-02-18 16:11:27,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:11:27,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666063292] [2023-02-18 16:11:27,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:11:27,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:11:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:11:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:27,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:11:27,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666063292] [2023-02-18 16:11:27,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666063292] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 16:11:27,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 16:11:27,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 16:11:27,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83505613] [2023-02-18 16:11:27,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 16:11:27,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 16:11:27,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:11:27,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 16:11:27,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 16:11:27,600 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:27,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:11:27,623 INFO L93 Difference]: Finished difference Result 53 states and 82 transitions. [2023-02-18 16:11:27,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 16:11:27,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 16:11:27,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:11:27,630 INFO L225 Difference]: With dead ends: 53 [2023-02-18 16:11:27,630 INFO L226 Difference]: Without dead ends: 26 [2023-02-18 16:11:27,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 16:11:27,634 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 16:11:27,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 16:11:27,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-18 16:11:27,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2023-02-18 16:11:27,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-02-18 16:11:27,656 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2023-02-18 16:11:27,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:11:27,656 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-02-18 16:11:27,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:27,657 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-02-18 16:11:27,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 16:11:27,657 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:11:27,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:11:27,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 16:11:27,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:11:27,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:11:27,658 INFO L85 PathProgramCache]: Analyzing trace with hash -308834241, now seen corresponding path program 1 times [2023-02-18 16:11:27,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:11:27,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869865544] [2023-02-18 16:11:27,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:11:27,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:11:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:11:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:27,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:11:27,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869865544] [2023-02-18 16:11:27,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869865544] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 16:11:27,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306033869] [2023-02-18 16:11:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:11:27,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:11:27,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:11:27,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 16:11:27,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 16:11:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:11:27,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 16:11:27,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:11:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:27,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 16:11:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:27,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306033869] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 16:11:27,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 16:11:27,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-18 16:11:27,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286082865] [2023-02-18 16:11:27,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 16:11:27,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 16:11:27,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:11:27,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 16:11:27,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-02-18 16:11:27,804 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:27,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:11:27,849 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2023-02-18 16:11:27,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 16:11:27,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 16:11:27,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:11:27,850 INFO L225 Difference]: With dead ends: 47 [2023-02-18 16:11:27,850 INFO L226 Difference]: Without dead ends: 31 [2023-02-18 16:11:27,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-02-18 16:11:27,851 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 16:11:27,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 58 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 16:11:27,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-18 16:11:27,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2023-02-18 16:11:27,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-02-18 16:11:27,857 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 12 [2023-02-18 16:11:27,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:11:27,858 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-02-18 16:11:27,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:27,859 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-02-18 16:11:27,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 16:11:27,859 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:11:27,859 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:11:27,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 16:11:28,060 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 [2023-02-18 16:11:28,060 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:11:28,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:11:28,060 INFO L85 PathProgramCache]: Analyzing trace with hash 83697605, now seen corresponding path program 2 times [2023-02-18 16:11:28,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:11:28,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839872671] [2023-02-18 16:11:28,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:11:28,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:11:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:11:28,232 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:28,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:11:28,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839872671] [2023-02-18 16:11:28,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839872671] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 16:11:28,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899880117] [2023-02-18 16:11:28,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 16:11:28,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:11:28,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:11:28,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 16:11:28,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 16:11:28,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 16:11:28,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 16:11:28,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 16:11:28,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:11:28,314 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:28,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 16:11:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:28,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899880117] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 16:11:28,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 16:11:28,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-18 16:11:28,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805079507] [2023-02-18 16:11:28,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 16:11:28,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 16:11:28,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:11:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 16:11:28,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-02-18 16:11:28,392 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:28,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:11:28,551 INFO L93 Difference]: Finished difference Result 65 states and 82 transitions. [2023-02-18 16:11:28,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 16:11:28,552 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-18 16:11:28,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:11:28,552 INFO L225 Difference]: With dead ends: 65 [2023-02-18 16:11:28,552 INFO L226 Difference]: Without dead ends: 43 [2023-02-18 16:11:28,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2023-02-18 16:11:28,554 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 16:11:28,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 145 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 16:11:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-18 16:11:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2023-02-18 16:11:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-02-18 16:11:28,559 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 18 [2023-02-18 16:11:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:11:28,559 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-02-18 16:11:28,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-02-18 16:11:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-18 16:11:28,560 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:11:28,560 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:11:28,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 16:11:28,766 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 [2023-02-18 16:11:28,766 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:11:28,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:11:28,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1185224367, now seen corresponding path program 3 times [2023-02-18 16:11:28,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:11:28,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614293090] [2023-02-18 16:11:28,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:11:28,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:11:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:11:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:29,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:11:29,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614293090] [2023-02-18 16:11:29,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614293090] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 16:11:29,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326385429] [2023-02-18 16:11:29,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 16:11:29,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:11:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:11:29,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 16:11:29,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 16:11:29,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 16:11:29,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 16:11:29,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-18 16:11:29,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:11:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:29,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 16:11:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:29,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326385429] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 16:11:29,391 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 16:11:29,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-02-18 16:11:29,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268767384] [2023-02-18 16:11:29,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 16:11:29,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-18 16:11:29,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:11:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-18 16:11:29,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2023-02-18 16:11:29,393 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 25 states, 25 states have (on average 2.16) internal successors, (54), 25 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:31,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:11:31,170 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2023-02-18 16:11:31,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 16:11:31,185 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 25 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-02-18 16:11:31,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:11:31,189 INFO L225 Difference]: With dead ends: 101 [2023-02-18 16:11:31,189 INFO L226 Difference]: Without dead ends: 67 [2023-02-18 16:11:31,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 38 SyntacticMatches, 11 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=440, Invalid=750, Unknown=0, NotChecked=0, Total=1190 [2023-02-18 16:11:31,192 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 40 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 16:11:31,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 298 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 16:11:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-02-18 16:11:31,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 60. [2023-02-18 16:11:31,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.0847457627118644) internal successors, (64), 59 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2023-02-18 16:11:31,206 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 30 [2023-02-18 16:11:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:11:31,206 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2023-02-18 16:11:31,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 25 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:11:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2023-02-18 16:11:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-02-18 16:11:31,208 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:11:31,208 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:11:31,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 16:11:31,413 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 [2023-02-18 16:11:31,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:11:31,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:11:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash -29907351, now seen corresponding path program 4 times [2023-02-18 16:11:31,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:11:31,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758722283] [2023-02-18 16:11:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:11:31,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:11:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:11:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:31,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:11:31,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758722283] [2023-02-18 16:11:31,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758722283] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 16:11:31,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861655062] [2023-02-18 16:11:31,907 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 16:11:31,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:11:31,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:11:31,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 16:11:31,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 16:11:31,991 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 16:11:31,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 16:11:31,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-18 16:11:31,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:11:32,225 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:32,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 16:11:32,883 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:11:32,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861655062] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 16:11:32,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 16:11:32,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2023-02-18 16:11:32,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541104267] [2023-02-18 16:11:32,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 16:11:32,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-02-18 16:11:32,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:11:32,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-02-18 16:11:32,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=1682, Unknown=0, NotChecked=0, Total=2352 [2023-02-18 16:11:32,886 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 49 states, 49 states have (on average 2.0816326530612246) internal successors, (102), 49 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:12:01,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:12:11,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 16:12:11,426 INFO L93 Difference]: Finished difference Result 173 states and 208 transitions. [2023-02-18 16:12:11,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 16:12:11,427 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.0816326530612246) internal successors, (102), 49 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-02-18 16:12:11,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 16:12:11,428 INFO L225 Difference]: With dead ends: 173 [2023-02-18 16:12:11,428 INFO L226 Difference]: Without dead ends: 115 [2023-02-18 16:12:11,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 62 SyntacticMatches, 23 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 33.5s TimeCoverageRelationStatistics Valid=1748, Invalid=3222, Unknown=0, NotChecked=0, Total=4970 [2023-02-18 16:12:11,430 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 96 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-02-18 16:12:11,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 562 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1195 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2023-02-18 16:12:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-02-18 16:12:11,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2023-02-18 16:12:11,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.0467289719626167) internal successors, (112), 107 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:12:11,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 112 transitions. [2023-02-18 16:12:11,457 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 112 transitions. Word has length 54 [2023-02-18 16:12:11,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 16:12:11,458 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 112 transitions. [2023-02-18 16:12:11,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.0816326530612246) internal successors, (102), 49 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:12:11,458 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 112 transitions. [2023-02-18 16:12:11,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-02-18 16:12:11,464 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 16:12:11,464 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 16:12:11,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 16:12:11,670 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 [2023-02-18 16:12:11,670 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 16:12:11,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 16:12:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1528182631, now seen corresponding path program 5 times [2023-02-18 16:12:11,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 16:12:11,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256814343] [2023-02-18 16:12:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 16:12:11,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 16:12:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 16:12:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:12:13,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 16:12:13,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256814343] [2023-02-18 16:12:13,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256814343] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 16:12:13,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101698184] [2023-02-18 16:12:13,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 16:12:13,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 16:12:13,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 16:12:13,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 16:12:13,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 16:13:56,697 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 16:13:56,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 16:13:56,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 95 conjunts are in the unsatisfiable core [2023-02-18 16:13:56,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 16:13:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:13:57,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 16:14:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 16:14:00,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101698184] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 16:14:00,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 16:14:00,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2023-02-18 16:14:00,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331042124] [2023-02-18 16:14:00,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 16:14:00,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-02-18 16:14:00,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 16:14:00,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-02-18 16:14:00,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2494, Invalid=6818, Unknown=0, NotChecked=0, Total=9312 [2023-02-18 16:14:00,865 INFO L87 Difference]: Start difference. First operand 108 states and 112 transitions. Second operand has 97 states, 97 states have (on average 2.0412371134020617) internal successors, (198), 97 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 16:14:44,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:15:27,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:15:30,196 WARN L837 $PredicateComparison]: unable to prove that (and (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 22) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 23) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 43) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 2) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 6) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 32) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 30) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 44) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 9) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 5) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 7) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 41) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 38) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 31) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 40) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 14) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 19) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 16) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 42) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 29) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 35) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 3) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 21) 4294967296) 268435455)) is different from false [2023-02-18 16:16:49,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:16:51,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:16:52,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:17:32,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:17:34,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:17:37,249 WARN L837 $PredicateComparison]: unable to prove that (and (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 22) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 23) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 2) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 6) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 32) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 30) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 9) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 5) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 7) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 41) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 38) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 31) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 40) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 14) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 19) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 16) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 29) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 35) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 3) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 21) 4294967296) 268435455)) is different from false [2023-02-18 16:18:56,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:19:00,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:19:02,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:19:44,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:19:46,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:19:48,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:20:36,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:20:37,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:21:15,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:22:35,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:23:14,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:23:16,376 WARN L837 $PredicateComparison]: unable to prove that (and (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 22) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 23) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 2) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 6) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 32) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 30) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 9) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 5) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 7) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 31) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 14) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 19) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 16) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 29) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 3) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 21) 4294967296) 268435455)) is different from false [2023-02-18 16:24:27,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 16:25:03,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []