./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.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 aa72233183b4e91144bd6a6eb8a8b140b7f90e590c3e855f829f337fec510ab9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 02:21:11,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 02:21:11,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 02:21:11,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 02:21:11,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 02:21:11,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 02:21:11,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 02:21:11,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 02:21:11,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 02:21:11,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 02:21:11,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 02:21:11,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 02:21:11,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 02:21:11,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 02:21:11,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 02:21:11,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 02:21:11,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 02:21:11,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 02:21:11,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 02:21:11,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 02:21:11,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 02:21:11,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 02:21:11,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 02:21:11,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 02:21:11,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 02:21:11,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 02:21:11,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 02:21:11,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 02:21:11,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 02:21:11,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 02:21:11,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 02:21:11,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 02:21:11,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 02:21:11,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 02:21:11,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 02:21:11,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 02:21:11,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 02:21:11,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 02:21:11,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 02:21:11,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 02:21:11,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 02:21:11,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 02:21:11,444 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 02:21:11,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 02:21:11,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 02:21:11,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 02:21:11,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 02:21:11,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 02:21:11,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 02:21:11,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 02:21:11,446 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 02:21:11,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 02:21:11,447 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 02:21:11,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 02:21:11,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 02:21:11,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 02:21:11,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 02:21:11,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 02:21:11,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 02:21:11,448 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 02:21:11,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 02:21:11,449 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 02:21:11,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 02:21:11,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 02:21:11,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 02:21:11,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 02:21:11,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:21:11,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 02:21:11,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 02:21:11,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 02:21:11,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 02:21:11,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 02:21:11,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 02:21:11,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 02:21:11,451 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 02:21:11,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 02:21:11,452 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 02:21:11,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa72233183b4e91144bd6a6eb8a8b140b7f90e590c3e855f829f337fec510ab9 [2023-02-16 02:21:11,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 02:21:11,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 02:21:11,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 02:21:11,660 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 02:21:11,660 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 02:21:11,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c [2023-02-16 02:21:12,639 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 02:21:12,810 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 02:21:12,811 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c [2023-02-16 02:21:12,815 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57403b5d/c1867a49c3a24e0881f1afea5cff50fc/FLAG1bc523888 [2023-02-16 02:21:12,829 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57403b5d/c1867a49c3a24e0881f1afea5cff50fc [2023-02-16 02:21:12,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 02:21:12,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 02:21:12,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 02:21:12,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 02:21:12,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 02:21:12,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:21:12" (1/1) ... [2023-02-16 02:21:12,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f743d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:12, skipping insertion in model container [2023-02-16 02:21:12,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:21:12" (1/1) ... [2023-02-16 02:21:12,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 02:21:12,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 02:21:12,959 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c[537,550] [2023-02-16 02:21:12,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:21:12,986 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 02:21:12,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c[537,550] [2023-02-16 02:21:13,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:21:13,016 INFO L208 MainTranslator]: Completed translation [2023-02-16 02:21:13,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13 WrapperNode [2023-02-16 02:21:13,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 02:21:13,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 02:21:13,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 02:21:13,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 02:21:13,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,046 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-02-16 02:21:13,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 02:21:13,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 02:21:13,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 02:21:13,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 02:21:13,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 02:21:13,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 02:21:13,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 02:21:13,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 02:21:13,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (1/1) ... [2023-02-16 02:21:13,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:21:13,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:13,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 02:21:13,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 02:21:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 02:21:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 02:21:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 02:21:13,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 02:21:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-16 02:21:13,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-16 02:21:13,172 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 02:21:13,173 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 02:21:13,304 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 02:21:13,308 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 02:21:13,308 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 02:21:13,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:21:13 BoogieIcfgContainer [2023-02-16 02:21:13,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 02:21:13,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 02:21:13,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 02:21:13,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 02:21:13,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 02:21:12" (1/3) ... [2023-02-16 02:21:13,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cf96a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:21:13, skipping insertion in model container [2023-02-16 02:21:13,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:13" (2/3) ... [2023-02-16 02:21:13,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cf96a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:21:13, skipping insertion in model container [2023-02-16 02:21:13,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:21:13" (3/3) ... [2023-02-16 02:21:13,318 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound100.c [2023-02-16 02:21:13,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 02:21:13,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 02:21:13,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 02:21:13,361 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;@5e2cccdb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 02:21:13,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 02:21:13,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-16 02:21:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 02:21:13,369 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:13,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:13,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:13,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:13,374 INFO L85 PathProgramCache]: Analyzing trace with hash -712527539, now seen corresponding path program 1 times [2023-02-16 02:21:13,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:13,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994439803] [2023-02-16 02:21:13,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:13,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:13,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:13,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994439803] [2023-02-16 02:21:13,470 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 02:21:13,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441108143] [2023-02-16 02:21:13,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:13,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:13,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:13,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:13,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 02:21:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:13,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 02:21:13,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:13,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:13,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441108143] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:13,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:13,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 02:21:13,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515023165] [2023-02-16 02:21:13,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:13,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 02:21:13,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:13,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 02:21:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:21:13,586 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:13,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:13,600 INFO L93 Difference]: Finished difference Result 53 states and 87 transitions. [2023-02-16 02:21:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 02:21:13,602 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 02:21:13,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:13,607 INFO L225 Difference]: With dead ends: 53 [2023-02-16 02:21:13,607 INFO L226 Difference]: Without dead ends: 24 [2023-02-16 02:21:13,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:21:13,612 INFO L413 NwaCegarLoop]: 38 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, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:13,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:13,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-16 02:21:13,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-16 02:21:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2023-02-16 02:21:13,658 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 34 transitions. Word has length 10 [2023-02-16 02:21:13,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:13,659 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 34 transitions. [2023-02-16 02:21:13,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2023-02-16 02:21:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 02:21:13,661 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:13,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:13,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-16 02:21:13,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-16 02:21:13,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:13,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1983932575, now seen corresponding path program 1 times [2023-02-16 02:21:13,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:13,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207505274] [2023-02-16 02:21:13,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:13,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:14,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:14,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:14,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207505274] [2023-02-16 02:21:14,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207505274] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:14,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:14,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:21:14,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489628360] [2023-02-16 02:21:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:14,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:14,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:14,064 INFO L87 Difference]: Start difference. First operand 24 states and 34 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:14,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:14,114 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2023-02-16 02:21:14,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:21:14,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 02:21:14,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:14,115 INFO L225 Difference]: With dead ends: 38 [2023-02-16 02:21:14,115 INFO L226 Difference]: Without dead ends: 36 [2023-02-16 02:21:14,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 02:21:14,117 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 15 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:14,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 106 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:14,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-16 02:21:14,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2023-02-16 02:21:14,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-02-16 02:21:14,139 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 10 [2023-02-16 02:21:14,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:14,140 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-02-16 02:21:14,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-02-16 02:21:14,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 02:21:14,142 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:14,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:14,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 02:21:14,143 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:14,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:14,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1787143384, now seen corresponding path program 1 times [2023-02-16 02:21:14,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:14,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366879861] [2023-02-16 02:21:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:14,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:14,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:14,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366879861] [2023-02-16 02:21:14,174 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 02:21:14,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006509348] [2023-02-16 02:21:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:14,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:14,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:14,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:14,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 02:21:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:14,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 02:21:14,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:14,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:14,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006509348] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:14,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:14,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 02:21:14,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534148312] [2023-02-16 02:21:14,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:14,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 02:21:14,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:14,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 02:21:14,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 02:21:14,250 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:14,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:14,262 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2023-02-16 02:21:14,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 02:21:14,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-16 02:21:14,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:14,263 INFO L225 Difference]: With dead ends: 44 [2023-02-16 02:21:14,263 INFO L226 Difference]: Without dead ends: 30 [2023-02-16 02:21:14,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 02:21:14,264 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:14,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-16 02:21:14,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-16 02:21:14,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:14,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-02-16 02:21:14,270 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 12 [2023-02-16 02:21:14,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:14,270 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-02-16 02:21:14,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:14,271 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-02-16 02:21:14,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 02:21:14,271 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:14,271 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:14,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:14,476 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 [2023-02-16 02:21:14,477 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:14,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:14,477 INFO L85 PathProgramCache]: Analyzing trace with hash 472519838, now seen corresponding path program 1 times [2023-02-16 02:21:14,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:14,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900273567] [2023-02-16 02:21:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:14,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-02-16 02:21:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:14,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:14,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:14,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900273567] [2023-02-16 02:21:14,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900273567] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:14,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:14,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:21:14,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730548643] [2023-02-16 02:21:14,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:14,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:14,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:14,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:14,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:14,672 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 02:21:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:14,726 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2023-02-16 02:21:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:21:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-16 02:21:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:14,728 INFO L225 Difference]: With dead ends: 44 [2023-02-16 02:21:14,728 INFO L226 Difference]: Without dead ends: 42 [2023-02-16 02:21:14,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 02:21:14,729 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 13 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:14,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 102 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:14,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-16 02:21:14,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2023-02-16 02:21:14,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:14,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-02-16 02:21:14,736 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 15 [2023-02-16 02:21:14,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:14,737 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-02-16 02:21:14,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 02:21:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-02-16 02:21:14,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-16 02:21:14,738 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:14,738 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:14,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 02:21:14,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:14,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:14,740 INFO L85 PathProgramCache]: Analyzing trace with hash 838495553, now seen corresponding path program 1 times [2023-02-16 02:21:14,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:14,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827848915] [2023-02-16 02:21:14,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:14,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:14,747 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:14,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154533245] [2023-02-16 02:21:14,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:14,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:14,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:14,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:14,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 02:21:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:14,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-16 02:21:14,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:14,979 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 02:21:14,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 02:21:15,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:15,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827848915] [2023-02-16 02:21:15,522 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:15,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154533245] [2023-02-16 02:21:15,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154533245] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:15,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:15,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2023-02-16 02:21:15,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550212700] [2023-02-16 02:21:15,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:15,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 02:21:15,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:15,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 02:21:15,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-16 02:21:15,524 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 02:21:17,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:19,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:20,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:20,722 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2023-02-16 02:21:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 02:21:20,722 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2023-02-16 02:21:20,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:20,724 INFO L225 Difference]: With dead ends: 78 [2023-02-16 02:21:20,724 INFO L226 Difference]: Without dead ends: 63 [2023-02-16 02:21:20,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-02-16 02:21:20,725 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 92 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 81 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:20,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 86 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 177 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2023-02-16 02:21:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-16 02:21:20,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2023-02-16 02:21:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 41 states have internal predecessors, (47), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-16 02:21:20,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2023-02-16 02:21:20,746 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 20 [2023-02-16 02:21:20,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:20,747 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2023-02-16 02:21:20,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 02:21:20,747 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2023-02-16 02:21:20,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 02:21:20,747 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:20,748 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:20,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:20,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:20,953 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:20,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash 414140572, now seen corresponding path program 1 times [2023-02-16 02:21:20,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:20,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242556876] [2023-02-16 02:21:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:20,959 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:20,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [384557877] [2023-02-16 02:21:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:20,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:20,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:20,962 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:20,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 02:21:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:20,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 02:21:21,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:21,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:21,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:21,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242556876] [2023-02-16 02:21:21,038 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:21,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384557877] [2023-02-16 02:21:21,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384557877] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:21,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:21,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 02:21:21,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982398973] [2023-02-16 02:21:21,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:21,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:21,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:21,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:21,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:21,040 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:21,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:21,060 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2023-02-16 02:21:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 02:21:21,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-02-16 02:21:21,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:21,062 INFO L225 Difference]: With dead ends: 76 [2023-02-16 02:21:21,062 INFO L226 Difference]: Without dead ends: 69 [2023-02-16 02:21:21,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:21,062 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:21,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 117 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:21,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-16 02:21:21,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-02-16 02:21:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 47 states have internal predecessors, (52), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-16 02:21:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2023-02-16 02:21:21,080 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 28 [2023-02-16 02:21:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:21,080 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2023-02-16 02:21:21,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2023-02-16 02:21:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 02:21:21,081 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:21,081 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:21,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:21,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:21,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:21,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:21,287 INFO L85 PathProgramCache]: Analyzing trace with hash 415868450, now seen corresponding path program 1 times [2023-02-16 02:21:21,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:21,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656234908] [2023-02-16 02:21:21,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:21,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:21,292 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:21,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815776338] [2023-02-16 02:21:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:21,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:21,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:21,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:21,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 02:21:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:21,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-16 02:21:21,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:21,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:21,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:21,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656234908] [2023-02-16 02:21:21,445 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:21,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815776338] [2023-02-16 02:21:21,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815776338] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:21,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:21,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-16 02:21:21,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582671933] [2023-02-16 02:21:21,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:21,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 02:21:21,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:21,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 02:21:21,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-02-16 02:21:21,447 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:23,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:23,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:23,492 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2023-02-16 02:21:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 02:21:23,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-02-16 02:21:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:23,493 INFO L225 Difference]: With dead ends: 75 [2023-02-16 02:21:23,493 INFO L226 Difference]: Without dead ends: 63 [2023-02-16 02:21:23,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-02-16 02:21:23,494 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:23,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 107 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-02-16 02:21:23,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-16 02:21:23,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-16 02:21:23,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.2) internal successors, (48), 43 states have internal predecessors, (48), 15 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-02-16 02:21:23,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2023-02-16 02:21:23,501 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 28 [2023-02-16 02:21:23,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:23,502 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2023-02-16 02:21:23,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:23,502 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2023-02-16 02:21:23,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-16 02:21:23,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:23,503 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:23,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-16 02:21:23,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:23,707 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1040101153, now seen corresponding path program 1 times [2023-02-16 02:21:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:23,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161580695] [2023-02-16 02:21:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:23,723 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:23,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728933638] [2023-02-16 02:21:23,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:23,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:23,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:23,724 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:23,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 02:21:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:23,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 02:21:23,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:23,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:23,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:23,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161580695] [2023-02-16 02:21:23,827 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:23,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728933638] [2023-02-16 02:21:23,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728933638] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:23,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:23,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-02-16 02:21:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854493237] [2023-02-16 02:21:23,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:23,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 02:21:23,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:23,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 02:21:23,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-16 02:21:23,830 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:21:23,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:23,906 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2023-02-16 02:21:23,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 02:21:23,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-02-16 02:21:23,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:23,909 INFO L225 Difference]: With dead ends: 134 [2023-02-16 02:21:23,909 INFO L226 Difference]: Without dead ends: 112 [2023-02-16 02:21:23,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-02-16 02:21:23,913 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 34 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:23,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 155 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-02-16 02:21:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2023-02-16 02:21:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 73 states have internal predecessors, (82), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-02-16 02:21:23,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2023-02-16 02:21:23,940 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 30 [2023-02-16 02:21:23,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:23,941 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2023-02-16 02:21:23,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:21:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2023-02-16 02:21:23,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 02:21:23,943 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:23,943 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:23,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:24,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:24,148 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:24,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2101649637, now seen corresponding path program 1 times [2023-02-16 02:21:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:24,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7019796] [2023-02-16 02:21:24,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:24,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:24,154 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:24,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990792170] [2023-02-16 02:21:24,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:24,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:24,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:24,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:24,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 02:21:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:24,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 02:21:24,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-16 02:21:24,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-16 02:21:24,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:24,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7019796] [2023-02-16 02:21:24,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:24,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990792170] [2023-02-16 02:21:24,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990792170] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:24,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:24,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-02-16 02:21:24,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891365067] [2023-02-16 02:21:24,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:24,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 02:21:24,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:24,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 02:21:24,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-16 02:21:24,306 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-16 02:21:24,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:24,442 INFO L93 Difference]: Finished difference Result 199 states and 238 transitions. [2023-02-16 02:21:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 02:21:24,443 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 46 [2023-02-16 02:21:24,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:24,444 INFO L225 Difference]: With dead ends: 199 [2023-02-16 02:21:24,444 INFO L226 Difference]: Without dead ends: 185 [2023-02-16 02:21:24,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-02-16 02:21:24,445 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 71 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:24,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 264 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:21:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-02-16 02:21:24,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 178. [2023-02-16 02:21:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 115 states have (on average 1.182608695652174) internal successors, (136), 122 states have internal predecessors, (136), 40 states have call successors, (40), 22 states have call predecessors, (40), 22 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2023-02-16 02:21:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 212 transitions. [2023-02-16 02:21:24,459 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 212 transitions. Word has length 46 [2023-02-16 02:21:24,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:24,460 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 212 transitions. [2023-02-16 02:21:24,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-16 02:21:24,460 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 212 transitions. [2023-02-16 02:21:24,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 02:21:24,461 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:24,461 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:24,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-16 02:21:24,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:24,666 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:24,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2103377515, now seen corresponding path program 1 times [2023-02-16 02:21:24,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:24,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581232963] [2023-02-16 02:21:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:24,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:24,671 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:24,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476893220] [2023-02-16 02:21:24,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:24,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:24,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:24,674 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:24,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 02:21:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:24,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-16 02:21:24,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 14 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:21:24,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 20 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:21:28,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:28,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581232963] [2023-02-16 02:21:28,540 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:28,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476893220] [2023-02-16 02:21:28,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476893220] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:28,540 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:28,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2023-02-16 02:21:28,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841929970] [2023-02-16 02:21:28,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:28,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-16 02:21:28,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:28,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-16 02:21:28,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=166, Unknown=1, NotChecked=0, Total=210 [2023-02-16 02:21:28,541 INFO L87 Difference]: Start difference. First operand 178 states and 212 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-16 02:21:30,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:32,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:32,780 INFO L93 Difference]: Finished difference Result 232 states and 285 transitions. [2023-02-16 02:21:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 02:21:32,781 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 46 [2023-02-16 02:21:32,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:32,782 INFO L225 Difference]: With dead ends: 232 [2023-02-16 02:21:32,782 INFO L226 Difference]: Without dead ends: 230 [2023-02-16 02:21:32,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=90, Invalid=329, Unknown=1, NotChecked=0, Total=420 [2023-02-16 02:21:32,783 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 58 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:32,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 137 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2023-02-16 02:21:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-02-16 02:21:32,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 225. [2023-02-16 02:21:32,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 147 states have (on average 1.1972789115646258) internal successors, (176), 159 states have internal predecessors, (176), 51 states have call successors, (51), 26 states have call predecessors, (51), 26 states have return successors, (47), 39 states have call predecessors, (47), 47 states have call successors, (47) [2023-02-16 02:21:32,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 274 transitions. [2023-02-16 02:21:32,799 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 274 transitions. Word has length 46 [2023-02-16 02:21:32,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:32,799 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 274 transitions. [2023-02-16 02:21:32,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-16 02:21:32,799 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 274 transitions. [2023-02-16 02:21:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-16 02:21:32,800 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:32,800 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:32,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-16 02:21:33,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-16 02:21:33,005 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:33,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:33,006 INFO L85 PathProgramCache]: Analyzing trace with hash -246714477, now seen corresponding path program 1 times [2023-02-16 02:21:33,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:33,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013294743] [2023-02-16 02:21:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:33,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:33,015 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:33,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218593452] [2023-02-16 02:21:33,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:33,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:33,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:33,018 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:33,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 02:21:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:33,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 30 conjunts are in the unsatisfiable core [2023-02-16 02:21:33,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 29 proven. 39 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-02-16 02:21:33,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-02-16 02:21:33,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:33,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013294743] [2023-02-16 02:21:33,758 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:33,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218593452] [2023-02-16 02:21:33,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218593452] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:33,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:33,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2023-02-16 02:21:33,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114538778] [2023-02-16 02:21:33,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:33,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 02:21:33,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:33,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 02:21:33,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-02-16 02:21:33,760 INFO L87 Difference]: Start difference. First operand 225 states and 274 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 02:21:35,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:42,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:44,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:44,502 INFO L93 Difference]: Finished difference Result 276 states and 334 transitions. [2023-02-16 02:21:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 02:21:44,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 56 [2023-02-16 02:21:44,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:44,505 INFO L225 Difference]: With dead ends: 276 [2023-02-16 02:21:44,505 INFO L226 Difference]: Without dead ends: 254 [2023-02-16 02:21:44,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-02-16 02:21:44,506 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 27 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:44,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 248 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2023-02-16 02:21:44,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-02-16 02:21:44,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 242. [2023-02-16 02:21:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 161 states have (on average 1.173913043478261) internal successors, (189), 172 states have internal predecessors, (189), 51 states have call successors, (51), 29 states have call predecessors, (51), 29 states have return successors, (48), 40 states have call predecessors, (48), 48 states have call successors, (48) [2023-02-16 02:21:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 288 transitions. [2023-02-16 02:21:44,527 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 288 transitions. Word has length 56 [2023-02-16 02:21:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:44,528 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 288 transitions. [2023-02-16 02:21:44,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 02:21:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 288 transitions. [2023-02-16 02:21:44,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-16 02:21:44,529 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:44,529 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:44,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:44,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:44,734 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:44,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:44,734 INFO L85 PathProgramCache]: Analyzing trace with hash 98519191, now seen corresponding path program 1 times [2023-02-16 02:21:44,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:44,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373924571] [2023-02-16 02:21:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:44,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:44,741 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:44,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88448032] [2023-02-16 02:21:44,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:44,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:44,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:44,769 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:44,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 02:21:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:44,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-16 02:21:44,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 35 proven. 26 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-02-16 02:21:45,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:22:31,839 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 (mod |c_ULTIMATE.start_main_~p~0#1| 4294967296)) (.cse0 (mod |c_ULTIMATE.start_main_~d~0#1| 4294967296))) (or (not (= .cse0 (mod (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~B~0#1|) 4294967296))) (= (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296) (mod (+ (* |c_ULTIMATE.start_main_~B~0#1| |c_ULTIMATE.start_main_~q~0#1|) (* 4294967295 (div .cse0 2)) |c_ULTIMATE.start_main_~r~0#1| (* |c_ULTIMATE.start_main_~B~0#1| (div .cse1 2))) 4294967296)) (= 1 .cse1) (<= .cse0 (mod |c_ULTIMATE.start_main_~r~0#1| 4294967296)))) is different from true [2023-02-16 02:24:14,804 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 14 DAG size of output: 1 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-16 02:25:08,219 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| Int)) (let ((.cse1 (mod (+ (* |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) 4294967296))) (let ((.cse28 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| 4294967296)) (.cse26 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2)) (.cse27 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| 4294967296)) (.cse29 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| 4294967296)) (.cse17 (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse3 (div .cse1 2))) (let ((.cse9 (* .cse3 4294967296)) (.cse14 (* .cse17 4294967296)) (.cse7 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse29)) (.cse19 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372039002259456)) (.cse18 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 9223372039002259456)) (.cse16 (* (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648)) (.cse0 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 4294967296)) (.cse23 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29)) (.cse20 (+ .cse26 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse8 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| 4294967296)) (.cse15 (* .cse3 4294967295)) (.cse10 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372034707292160)) (.cse11 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse12 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse13 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| 2)) (.cse25 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| 2)) (.cse4 (* (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 4294967295)) (.cse5 (* .cse17 4294967295)) (.cse2 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| 4294967296)) (.cse6 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| 2)) (.cse24 (+ .cse26 .cse27 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29))) (or (< (+ .cse0 .cse1) 0) (< (+ .cse2 4294967295) (+ .cse3 .cse4 .cse5)) (< .cse6 0) (< .cse7 0) (<= 4294967296 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 4294967296) .cse0 .cse1)) (< (+ .cse8 .cse2 4294967295) (+ .cse9 .cse4 .cse10 .cse11 .cse12 .cse13 .cse14)) (< (+ .cse15 .cse16 (* (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648) .cse12 (* (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648) .cse17 4294967295) .cse8) (< (+ .cse9 .cse4 .cse18 .cse16 .cse19 .cse12 .cse13 .cse14) (+ .cse8 .cse2 1)) (< .cse20 0) (< .cse6 (+ .cse21 .cse22)) (<= 4294967296 .cse7) (<= 4294967296 .cse6) (< (+ .cse15 .cse18 .cse16 .cse19 .cse1 .cse12 .cse13 .cse17) (+ .cse8 1)) (< (+ .cse18 .cse16 .cse0 .cse1) (+ .cse11 1)) (< .cse23 0) (< .cse24 0) (< .cse6 (+ .cse21 .cse22 .cse25)) (<= 4294967296 .cse23) (<= 4294967296 .cse20) (<= (+ .cse21 .cse22 2) .cse6) (<= (+ .cse22 2) .cse6) (< (+ .cse8 4294967295) (+ .cse15 .cse10 .cse11 .cse12 .cse13 .cse17)) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2) (<= (+ .cse21 .cse22 .cse25 2) .cse6) (< (+ .cse3 .cse4 .cse5 4294967295) (+ .cse1 .cse2)) (< .cse6 .cse22) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|) (<= 4294967296 .cse24)))))) is different from false [2023-02-16 02:25:10,227 WARN L859 $PredicateComparison]: unable to prove that (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| Int)) (let ((.cse1 (mod (+ (* |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) 4294967296))) (let ((.cse28 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| 4294967296)) (.cse26 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2)) (.cse27 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| 4294967296)) (.cse29 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| 4294967296)) (.cse17 (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse3 (div .cse1 2))) (let ((.cse9 (* .cse3 4294967296)) (.cse14 (* .cse17 4294967296)) (.cse7 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse29)) (.cse19 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372039002259456)) (.cse18 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 9223372039002259456)) (.cse16 (* (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648)) (.cse0 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 4294967296)) (.cse23 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29)) (.cse20 (+ .cse26 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse8 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| 4294967296)) (.cse15 (* .cse3 4294967295)) (.cse10 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372034707292160)) (.cse11 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse12 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse13 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| 2)) (.cse25 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| 2)) (.cse4 (* (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 4294967295)) (.cse5 (* .cse17 4294967295)) (.cse2 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| 4294967296)) (.cse6 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| 2)) (.cse24 (+ .cse26 .cse27 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29))) (or (< (+ .cse0 .cse1) 0) (< (+ .cse2 4294967295) (+ .cse3 .cse4 .cse5)) (< .cse6 0) (< .cse7 0) (<= 4294967296 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 4294967296) .cse0 .cse1)) (< (+ .cse8 .cse2 4294967295) (+ .cse9 .cse4 .cse10 .cse11 .cse12 .cse13 .cse14)) (< (+ .cse15 .cse16 (* (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648) .cse12 (* (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648) .cse17 4294967295) .cse8) (< (+ .cse9 .cse4 .cse18 .cse16 .cse19 .cse12 .cse13 .cse14) (+ .cse8 .cse2 1)) (< .cse20 0) (< .cse6 (+ .cse21 .cse22)) (<= 4294967296 .cse7) (<= 4294967296 .cse6) (< (+ .cse15 .cse18 .cse16 .cse19 .cse1 .cse12 .cse13 .cse17) (+ .cse8 1)) (< (+ .cse18 .cse16 .cse0 .cse1) (+ .cse11 1)) (< .cse23 0) (< .cse24 0) (< .cse6 (+ .cse21 .cse22 .cse25)) (<= 4294967296 .cse23) (<= 4294967296 .cse20) (<= (+ .cse21 .cse22 2) .cse6) (<= (+ .cse22 2) .cse6) (< (+ .cse8 4294967295) (+ .cse15 .cse10 .cse11 .cse12 .cse13 .cse17)) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2) (<= (+ .cse21 .cse22 .cse25 2) .cse6) (< (+ .cse3 .cse4 .cse5 4294967295) (+ .cse1 .cse2)) (< .cse6 .cse22) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|) (<= 4294967296 .cse24)))))) is different from true