./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c 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_unwindbound10.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 91dfff3356c8586e4ab54260d22ce3d78ead2ec4d531619c6564036666f10187 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 02:01:44,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 02:01:44,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 02:01:44,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 02:01:44,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 02:01:44,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 02:01:44,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 02:01:44,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 02:01:44,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 02:01:44,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 02:01:44,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 02:01:44,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 02:01:44,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 02:01:44,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 02:01:44,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 02:01:44,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 02:01:44,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 02:01:44,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 02:01:44,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 02:01:44,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 02:01:44,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 02:01:44,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 02:01:44,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 02:01:44,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 02:01:44,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 02:01:44,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 02:01:44,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 02:01:44,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 02:01:44,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 02:01:44,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 02:01:44,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 02:01:44,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 02:01:44,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 02:01:44,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 02:01:44,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 02:01:44,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 02:01:44,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 02:01:44,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 02:01:44,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 02:01:44,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 02:01:44,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 02:01:44,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 02:01:44,098 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 02:01:44,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 02:01:44,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 02:01:44,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 02:01:44,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 02:01:44,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 02:01:44,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 02:01:44,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 02:01:44,101 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 02:01:44,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 02:01:44,101 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 02:01:44,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 02:01:44,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 02:01:44,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 02:01:44,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 02:01:44,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 02:01:44,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 02:01:44,102 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 02:01:44,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 02:01:44,103 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 02:01:44,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 02:01:44,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 02:01:44,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 02:01:44,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 02:01:44,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 02:01:44,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 02:01:44,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 02:01:44,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 02:01:44,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 02:01:44,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 02:01:44,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 02:01:44,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 02:01:44,105 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 02:01:44,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 02:01:44,105 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 02:01:44,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91dfff3356c8586e4ab54260d22ce3d78ead2ec4d531619c6564036666f10187 [2023-02-17 02:01:44,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 02:01:44,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 02:01:44,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 02:01:44,321 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 02:01:44,321 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 02:01:44,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound10.c [2023-02-17 02:01:45,459 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 02:01:45,614 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 02:01:45,614 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound10.c [2023-02-17 02:01:45,619 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f65e7d9b/c0440eddbada44d1b8b2b1bc8121e9de/FLAG2a6bbf4b4 [2023-02-17 02:01:45,633 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f65e7d9b/c0440eddbada44d1b8b2b1bc8121e9de [2023-02-17 02:01:45,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 02:01:45,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 02:01:45,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 02:01:45,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 02:01:45,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 02:01:45,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63acc26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45, skipping insertion in model container [2023-02-17 02:01:45,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 02:01:45,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 02:01:45,769 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_unwindbound10.c[537,550] [2023-02-17 02:01:45,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 02:01:45,794 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 02:01:45,805 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_unwindbound10.c[537,550] [2023-02-17 02:01:45,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 02:01:45,825 INFO L208 MainTranslator]: Completed translation [2023-02-17 02:01:45,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45 WrapperNode [2023-02-17 02:01:45,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 02:01:45,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 02:01:45,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 02:01:45,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 02:01:45,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,854 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-02-17 02:01:45,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 02:01:45,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 02:01:45,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 02:01:45,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 02:01:45,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,880 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 02:01:45,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 02:01:45,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 02:01:45,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 02:01:45,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (1/1) ... [2023-02-17 02:01:45,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 02:01:45,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:01:45,912 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) [2023-02-17 02:01:45,930 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 [2023-02-17 02:01:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 02:01:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 02:01:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 02:01:45,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 02:01:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-17 02:01:45,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-17 02:01:46,006 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 02:01:46,007 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 02:01:46,112 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 02:01:46,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 02:01:46,116 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-17 02:01:46,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 02:01:46 BoogieIcfgContainer [2023-02-17 02:01:46,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 02:01:46,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 02:01:46,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 02:01:46,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 02:01:46,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 02:01:45" (1/3) ... [2023-02-17 02:01:46,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e902512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 02:01:46, skipping insertion in model container [2023-02-17 02:01:46,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:01:45" (2/3) ... [2023-02-17 02:01:46,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e902512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 02:01:46, skipping insertion in model container [2023-02-17 02:01:46,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 02:01:46" (3/3) ... [2023-02-17 02:01:46,123 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound10.c [2023-02-17 02:01:46,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 02:01:46,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 02:01:46,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 02:01:46,177 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;@7e5261ff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 02:01:46,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 02:01:46,179 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) [2023-02-17 02:01:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 02:01:46,183 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:01:46,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 02:01:46,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:01:46,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:01:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash -712527539, now seen corresponding path program 1 times [2023-02-17 02:01:46,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:01:46,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563047166] [2023-02-17 02:01:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:46,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:01:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:46,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:01:46,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563047166] [2023-02-17 02:01:46,294 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-17 02:01:46,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825689552] [2023-02-17 02:01:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:46,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:01:46,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:01:46,299 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) [2023-02-17 02:01:46,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 02:01:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:46,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-17 02:01:46,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:01:46,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 02:01:46,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 02:01:46,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825689552] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 02:01:46,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 02:01:46,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 02:01:46,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250298827] [2023-02-17 02:01:46,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 02:01:46,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 02:01:46,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:01:46,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 02:01:46,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 02:01:46,446 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) [2023-02-17 02:01:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:01:46,460 INFO L93 Difference]: Finished difference Result 53 states and 87 transitions. [2023-02-17 02:01:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 02:01:46,461 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 [2023-02-17 02:01:46,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:01:46,467 INFO L225 Difference]: With dead ends: 53 [2023-02-17 02:01:46,467 INFO L226 Difference]: Without dead ends: 24 [2023-02-17 02:01:46,469 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 [2023-02-17 02:01:46,471 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 [2023-02-17 02:01:46,471 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] [2023-02-17 02:01:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-17 02:01:46,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-17 02:01:46,492 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) [2023-02-17 02:01:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2023-02-17 02:01:46,494 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 34 transitions. Word has length 10 [2023-02-17 02:01:46,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:01:46,494 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 34 transitions. [2023-02-17 02:01:46,494 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) [2023-02-17 02:01:46,494 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2023-02-17 02:01:46,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 02:01:46,495 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:01:46,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 02:01:46,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 02:01:46,698 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 [2023-02-17 02:01:46,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:01:46,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:01:46,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1983932575, now seen corresponding path program 1 times [2023-02-17 02:01:46,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:01:46,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454865549] [2023-02-17 02:01:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:46,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:01:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 02:01:46,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:01:46,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454865549] [2023-02-17 02:01:46,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454865549] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 02:01:46,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 02:01:46,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 02:01:46,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31630510] [2023-02-17 02:01:46,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 02:01:46,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 02:01:46,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:01:46,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 02:01:46,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 02:01:46,867 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) [2023-02-17 02:01:46,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:01:46,925 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2023-02-17 02:01:46,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 02:01:46,926 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 [2023-02-17 02:01:46,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:01:46,927 INFO L225 Difference]: With dead ends: 38 [2023-02-17 02:01:46,927 INFO L226 Difference]: Without dead ends: 36 [2023-02-17 02:01:46,927 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 [2023-02-17 02:01:46,928 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 [2023-02-17 02:01:46,929 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] [2023-02-17 02:01:46,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-17 02:01:46,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2023-02-17 02:01:46,935 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) [2023-02-17 02:01:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-02-17 02:01:46,935 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 10 [2023-02-17 02:01:46,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:01:46,936 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-02-17 02:01:46,936 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) [2023-02-17 02:01:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-02-17 02:01:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 02:01:46,937 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:01:46,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 02:01:46,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 02:01:46,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:01:46,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:01:46,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1787143384, now seen corresponding path program 1 times [2023-02-17 02:01:46,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:01:46,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730073999] [2023-02-17 02:01:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:46,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:01:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:46,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:01:46,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730073999] [2023-02-17 02:01:46,953 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-17 02:01:46,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792804355] [2023-02-17 02:01:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:46,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:01:46,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:01:46,955 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) [2023-02-17 02:01:46,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 02:01:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:46,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 02:01:46,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:01:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 02:01:47,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 02:01:47,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792804355] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 02:01:47,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 02:01:47,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 02:01:47,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509670096] [2023-02-17 02:01:47,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 02:01:47,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 02:01:47,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:01:47,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 02:01:47,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 02:01:47,008 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) [2023-02-17 02:01:47,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:01:47,019 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2023-02-17 02:01:47,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 02:01:47,020 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 [2023-02-17 02:01:47,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:01:47,020 INFO L225 Difference]: With dead ends: 44 [2023-02-17 02:01:47,021 INFO L226 Difference]: Without dead ends: 30 [2023-02-17 02:01:47,021 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 [2023-02-17 02:01:47,022 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 [2023-02-17 02:01:47,022 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] [2023-02-17 02:01:47,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-17 02:01:47,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-17 02:01:47,026 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) [2023-02-17 02:01:47,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-02-17 02:01:47,027 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 12 [2023-02-17 02:01:47,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:01:47,027 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-02-17 02:01:47,027 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) [2023-02-17 02:01:47,027 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-02-17 02:01:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-17 02:01:47,028 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:01:47,028 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 02:01:47,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 02:01:47,232 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 [2023-02-17 02:01:47,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:01:47,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:01:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash 472519838, now seen corresponding path program 1 times [2023-02-17 02:01:47,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:01:47,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040811569] [2023-02-17 02:01:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:47,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:01:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-02-17 02:01:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 02:01:47,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:01:47,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040811569] [2023-02-17 02:01:47,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040811569] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 02:01:47,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 02:01:47,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 02:01:47,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975833653] [2023-02-17 02:01:47,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 02:01:47,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 02:01:47,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:01:47,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 02:01:47,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 02:01:47,443 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) [2023-02-17 02:01:47,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:01:47,490 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2023-02-17 02:01:47,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 02:01:47,491 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 [2023-02-17 02:01:47,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:01:47,492 INFO L225 Difference]: With dead ends: 44 [2023-02-17 02:01:47,493 INFO L226 Difference]: Without dead ends: 42 [2023-02-17 02:01:47,494 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 [2023-02-17 02:01:47,494 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 [2023-02-17 02:01:47,495 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] [2023-02-17 02:01:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-17 02:01:47,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2023-02-17 02:01:47,499 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) [2023-02-17 02:01:47,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-02-17 02:01:47,500 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 15 [2023-02-17 02:01:47,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:01:47,501 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-02-17 02:01:47,501 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) [2023-02-17 02:01:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-02-17 02:01:47,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 02:01:47,501 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:01:47,502 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 02:01:47,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 02:01:47,502 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:01:47,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:01:47,502 INFO L85 PathProgramCache]: Analyzing trace with hash 838495553, now seen corresponding path program 1 times [2023-02-17 02:01:47,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:01:47,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013826263] [2023-02-17 02:01:47,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:47,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:01:47,509 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 02:01:47,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818575533] [2023-02-17 02:01:47,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:47,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:01:47,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:01:47,529 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) [2023-02-17 02:01:47,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 02:01:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:47,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-17 02:01:47,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:01:47,653 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 02:01:47,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:01:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 02:01:48,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:01:48,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013826263] [2023-02-17 02:01:48,254 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 02:01:48,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818575533] [2023-02-17 02:01:48,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818575533] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:01:48,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 02:01:48,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2023-02-17 02:01:48,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581631896] [2023-02-17 02:01:48,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 02:01:48,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-17 02:01:48,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:01:48,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-17 02:01:48,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-17 02:01:48,257 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) [2023-02-17 02:01:50,584 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 [] [2023-02-17 02:01:52,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:01:54,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:01:56,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:01:59,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:01:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:01:59,569 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2023-02-17 02:01:59,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 02:01:59,570 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 [2023-02-17 02:01:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:01:59,571 INFO L225 Difference]: With dead ends: 78 [2023-02-17 02:01:59,571 INFO L226 Difference]: Without dead ends: 63 [2023-02-17 02:01:59,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-02-17 02:01:59,572 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 92 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 81 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-02-17 02:01:59,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 86 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 177 Invalid, 5 Unknown, 0 Unchecked, 11.2s Time] [2023-02-17 02:01:59,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-17 02:01:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2023-02-17 02:01:59,589 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) [2023-02-17 02:01:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2023-02-17 02:01:59,595 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 20 [2023-02-17 02:01:59,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:01:59,595 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2023-02-17 02:01:59,596 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) [2023-02-17 02:01:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2023-02-17 02:01:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 02:01:59,597 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:01:59,597 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] [2023-02-17 02:01:59,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 02:01:59,802 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 [2023-02-17 02:01:59,802 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:01:59,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:01:59,803 INFO L85 PathProgramCache]: Analyzing trace with hash 414140572, now seen corresponding path program 1 times [2023-02-17 02:01:59,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:01:59,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425853177] [2023-02-17 02:01:59,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:59,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:01:59,811 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 02:01:59,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703694118] [2023-02-17 02:01:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:01:59,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:01:59,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:01:59,812 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) [2023-02-17 02:01:59,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 02:01:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:01:59,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 02:01:59,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:01:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 02:01:59,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 02:01:59,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:01:59,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425853177] [2023-02-17 02:01:59,865 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 02:01:59,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703694118] [2023-02-17 02:01:59,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703694118] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 02:01:59,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 02:01:59,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 02:01:59,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112950966] [2023-02-17 02:01:59,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 02:01:59,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 02:01:59,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:01:59,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 02:01:59,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-17 02:01:59,867 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) [2023-02-17 02:01:59,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:01:59,889 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2023-02-17 02:01:59,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 02:01:59,889 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 [2023-02-17 02:01:59,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:01:59,890 INFO L225 Difference]: With dead ends: 76 [2023-02-17 02:01:59,890 INFO L226 Difference]: Without dead ends: 69 [2023-02-17 02:01:59,891 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 [2023-02-17 02:01:59,891 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 [2023-02-17 02:01:59,891 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] [2023-02-17 02:01:59,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-17 02:01:59,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-02-17 02:01:59,901 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) [2023-02-17 02:01:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2023-02-17 02:01:59,902 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 28 [2023-02-17 02:01:59,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:01:59,902 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2023-02-17 02:01:59,902 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) [2023-02-17 02:01:59,902 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2023-02-17 02:01:59,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 02:01:59,903 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:01:59,903 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] [2023-02-17 02:01:59,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-17 02:02:00,108 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 [2023-02-17 02:02:00,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:02:00,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:02:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash 415868450, now seen corresponding path program 1 times [2023-02-17 02:02:00,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:02:00,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409987545] [2023-02-17 02:02:00,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:00,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:02:00,115 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 02:02:00,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575575423] [2023-02-17 02:02:00,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:00,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:02:00,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:02:00,116 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) [2023-02-17 02:02:00,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 02:02:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:02:00,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-17 02:02:00,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:02:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 02:02:00,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 02:02:00,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:02:00,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409987545] [2023-02-17 02:02:00,229 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 02:02:00,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575575423] [2023-02-17 02:02:00,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575575423] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 02:02:00,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 02:02:00,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-17 02:02:00,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95499131] [2023-02-17 02:02:00,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 02:02:00,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 02:02:00,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:02:00,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 02:02:00,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-02-17 02:02:00,232 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) [2023-02-17 02:02:00,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:02:00,437 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2023-02-17 02:02:00,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 02:02:00,437 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 [2023-02-17 02:02:00,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:02:00,438 INFO L225 Difference]: With dead ends: 75 [2023-02-17 02:02:00,438 INFO L226 Difference]: Without dead ends: 63 [2023-02-17 02:02:00,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-02-17 02:02:00,439 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 02:02:00,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 107 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 02:02:00,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-17 02:02:00,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-17 02:02:00,449 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) [2023-02-17 02:02:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2023-02-17 02:02:00,450 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 28 [2023-02-17 02:02:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:02:00,450 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2023-02-17 02:02:00,450 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) [2023-02-17 02:02:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2023-02-17 02:02:00,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-17 02:02:00,452 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:02:00,452 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] [2023-02-17 02:02:00,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 02:02:00,665 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 [2023-02-17 02:02:00,665 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:02:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:02:00,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1040101153, now seen corresponding path program 1 times [2023-02-17 02:02:00,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:02:00,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588522662] [2023-02-17 02:02:00,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:00,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:02:00,681 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 02:02:00,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205497586] [2023-02-17 02:02:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:00,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:02:00,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:02:00,685 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) [2023-02-17 02:02:00,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 02:02:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:02:00,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 02:02:00,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:02:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 02:02:00,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:02:00,741 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 02:02:00,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:02:00,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588522662] [2023-02-17 02:02:00,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 02:02:00,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205497586] [2023-02-17 02:02:00,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205497586] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:02:00,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 02:02:00,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-02-17 02:02:00,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967959946] [2023-02-17 02:02:00,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 02:02:00,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 02:02:00,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:02:00,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 02:02:00,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-17 02:02:00,744 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) [2023-02-17 02:02:00,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:02:00,806 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2023-02-17 02:02:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 02:02:00,806 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 [2023-02-17 02:02:00,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:02:00,809 INFO L225 Difference]: With dead ends: 134 [2023-02-17 02:02:00,809 INFO L226 Difference]: Without dead ends: 112 [2023-02-17 02:02:00,811 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 [2023-02-17 02:02:00,812 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 [2023-02-17 02:02:00,812 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] [2023-02-17 02:02:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-02-17 02:02:00,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2023-02-17 02:02:00,836 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) [2023-02-17 02:02:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2023-02-17 02:02:00,837 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 30 [2023-02-17 02:02:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:02:00,838 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2023-02-17 02:02:00,839 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) [2023-02-17 02:02:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2023-02-17 02:02:00,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-17 02:02:00,842 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:02:00,842 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] [2023-02-17 02:02:00,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-17 02:02:01,047 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 [2023-02-17 02:02:01,049 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:02:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:02:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash 2101649637, now seen corresponding path program 1 times [2023-02-17 02:02:01,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:02:01,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562151182] [2023-02-17 02:02:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:01,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:02:01,057 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 02:02:01,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430135954] [2023-02-17 02:02:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:01,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:02:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:02:01,060 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) [2023-02-17 02:02:01,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 02:02:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:02:01,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-17 02:02:01,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:02:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-17 02:02:01,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:02:01,125 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-17 02:02:01,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:02:01,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562151182] [2023-02-17 02:02:01,125 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 02:02:01,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430135954] [2023-02-17 02:02:01,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430135954] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:02:01,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 02:02:01,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-02-17 02:02:01,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326608062] [2023-02-17 02:02:01,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 02:02:01,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-17 02:02:01,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:02:01,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-17 02:02:01,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-17 02:02:01,127 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) [2023-02-17 02:02:01,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:02:01,249 INFO L93 Difference]: Finished difference Result 199 states and 238 transitions. [2023-02-17 02:02:01,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-17 02:02:01,249 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 [2023-02-17 02:02:01,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:02:01,250 INFO L225 Difference]: With dead ends: 199 [2023-02-17 02:02:01,250 INFO L226 Difference]: Without dead ends: 185 [2023-02-17 02:02:01,251 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 [2023-02-17 02:02:01,251 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 [2023-02-17 02:02:01,251 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] [2023-02-17 02:02:01,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-02-17 02:02:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 178. [2023-02-17 02:02:01,274 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) [2023-02-17 02:02:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 212 transitions. [2023-02-17 02:02:01,275 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 212 transitions. Word has length 46 [2023-02-17 02:02:01,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:02:01,275 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 212 transitions. [2023-02-17 02:02:01,275 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) [2023-02-17 02:02:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 212 transitions. [2023-02-17 02:02:01,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-17 02:02:01,276 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:02:01,276 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] [2023-02-17 02:02:01,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 02:02:01,480 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 [2023-02-17 02:02:01,481 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:02:01,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:02:01,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2103377515, now seen corresponding path program 1 times [2023-02-17 02:02:01,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:02:01,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33096079] [2023-02-17 02:02:01,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:01,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:02:01,487 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 02:02:01,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230499468] [2023-02-17 02:02:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:01,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:02:01,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:02:01,489 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) [2023-02-17 02:02:01,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-17 02:02:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:02:01,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-17 02:02:01,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:02:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-02-17 02:02:01,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:02:01,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:02:01,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33096079] [2023-02-17 02:02:01,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 02:02:01,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230499468] [2023-02-17 02:02:01,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230499468] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:02:01,615 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-17 02:02:01,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-17 02:02:01,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858196117] [2023-02-17 02:02:01,615 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-17 02:02:01,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 02:02:01,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:02:01,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 02:02:01,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-02-17 02:02:01,616 INFO L87 Difference]: Start difference. First operand 178 states and 212 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 02:02:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:02:01,914 INFO L93 Difference]: Finished difference Result 222 states and 271 transitions. [2023-02-17 02:02:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-17 02:02:01,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2023-02-17 02:02:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:02:01,916 INFO L225 Difference]: With dead ends: 222 [2023-02-17 02:02:01,916 INFO L226 Difference]: Without dead ends: 220 [2023-02-17 02:02:01,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-02-17 02:02:01,917 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 02:02:01,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 80 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 02:02:01,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-02-17 02:02:01,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2023-02-17 02:02:01,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 141 states have (on average 1.198581560283688) internal successors, (169), 151 states have internal predecessors, (169), 49 states have call successors, (49), 26 states have call predecessors, (49), 26 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2023-02-17 02:02:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 263 transitions. [2023-02-17 02:02:01,932 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 263 transitions. Word has length 46 [2023-02-17 02:02:01,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:02:01,933 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 263 transitions. [2023-02-17 02:02:01,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 02:02:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 263 transitions. [2023-02-17 02:02:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-17 02:02:01,934 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:02:01,934 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-17 02:02:01,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-17 02:02:02,138 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 [2023-02-17 02:02:02,139 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:02:02,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:02:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash -246714477, now seen corresponding path program 1 times [2023-02-17 02:02:02,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:02:02,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632305484] [2023-02-17 02:02:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:02,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:02:02,146 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 02:02:02,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900783304] [2023-02-17 02:02:02,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:02,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:02:02,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:02:02,148 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) [2023-02-17 02:02:02,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-17 02:02:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:02:02,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-17 02:02:02,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:02:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 40 proven. 37 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-02-17 02:02:02,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:02:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 55 proven. 8 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-02-17 02:02:04,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:02:04,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632305484] [2023-02-17 02:02:04,955 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 02:02:04,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900783304] [2023-02-17 02:02:04,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900783304] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:02:04,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 02:02:04,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 18 [2023-02-17 02:02:04,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583573041] [2023-02-17 02:02:04,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 02:02:04,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-17 02:02:04,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:02:04,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-17 02:02:04,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=242, Unknown=1, NotChecked=0, Total=306 [2023-02-17 02:02:04,957 INFO L87 Difference]: Start difference. First operand 217 states and 263 transitions. Second operand has 18 states, 16 states have (on average 2.125) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) [2023-02-17 02:02:06,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:02:15,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:02:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:02:19,292 INFO L93 Difference]: Finished difference Result 266 states and 320 transitions. [2023-02-17 02:02:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-17 02:02:19,294 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.125) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) Word has length 56 [2023-02-17 02:02:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:02:19,295 INFO L225 Difference]: With dead ends: 266 [2023-02-17 02:02:19,295 INFO L226 Difference]: Without dead ends: 244 [2023-02-17 02:02:19,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=144, Invalid=557, Unknown=1, NotChecked=0, Total=702 [2023-02-17 02:02:19,296 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 96 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 107 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-02-17 02:02:19,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 171 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 439 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2023-02-17 02:02:19,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-02-17 02:02:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 228. [2023-02-17 02:02:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 151 states have (on average 1.1721854304635762) internal successors, (177), 159 states have internal predecessors, (177), 47 states have call successors, (47), 29 states have call predecessors, (47), 29 states have return successors, (44), 39 states have call predecessors, (44), 44 states have call successors, (44) [2023-02-17 02:02:19,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 268 transitions. [2023-02-17 02:02:19,315 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 268 transitions. Word has length 56 [2023-02-17 02:02:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:02:19,315 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 268 transitions. [2023-02-17 02:02:19,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.125) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) [2023-02-17 02:02:19,316 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 268 transitions. [2023-02-17 02:02:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-17 02:02:19,317 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:02:19,318 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] [2023-02-17 02:02:19,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-17 02:02:19,523 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 [2023-02-17 02:02:19,524 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:02:19,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:02:19,524 INFO L85 PathProgramCache]: Analyzing trace with hash 98519191, now seen corresponding path program 1 times [2023-02-17 02:02:19,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:02:19,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652028609] [2023-02-17 02:02:19,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:19,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:02:19,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 02:02:19,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496406796] [2023-02-17 02:02:19,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:02:19,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:02:19,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:02:19,551 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) [2023-02-17 02:02:19,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-17 02:02:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:02:19,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-17 02:02:19,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:02:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 35 proven. 26 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-02-17 02:02:20,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:02:44,713 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 (mod |c_ULTIMATE.start_main_~d~0#1| 4294967296)) (.cse0 (mod |c_ULTIMATE.start_main_~p~0#1| 4294967296))) (or (= .cse0 1) (not (= .cse1 (mod (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~B~0#1|) 4294967296))) (>= (mod |c_ULTIMATE.start_main_~r~0#1| 4294967296) .cse1) (let ((.cse7 (= (mod |c_ULTIMATE.start_main_~p~0#1| 2) 0)) (.cse11 (< .cse0 0))) (let ((.cse6 (not .cse11)) (.cse2 (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse3 (* |c_ULTIMATE.start_main_~B~0#1| (div .cse0 2))) (.cse4 (* |c_ULTIMATE.start_main_~B~0#1| |c_ULTIMATE.start_main_~q~0#1|)) (.cse5 (* 4294967295 (div .cse1 2))) (.cse8 (and (not .cse7) .cse11)) (.cse10 (< .cse1 0)) (.cse9 (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0))) (and (or (and (or (= .cse2 (mod (+ .cse3 4294967295 .cse4 |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~B~0#1| .cse5) 4294967296)) .cse6 .cse7) (or (= (mod (+ .cse3 4294967295 .cse4 |c_ULTIMATE.start_main_~r~0#1| .cse5) 4294967296) .cse2) .cse8)) .cse9 (not .cse10)) (or (and (or (= .cse2 (mod (+ .cse3 .cse4 |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~B~0#1| .cse5) 4294967296)) .cse6 .cse7) (or (= .cse2 (mod (+ .cse3 .cse4 |c_ULTIMATE.start_main_~r~0#1| .cse5) 4294967296)) .cse8)) (and .cse10 (not .cse9)))))))) is different from true [2023-02-17 02:04:22,069 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| 0))) (or (and (not .cse0) (or (not (= |c___VERIFIER_assert_#in~cond| 1)) (forall ((|aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589_97| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149| Int) (|aux_div_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142| Int)) (let ((.cse8 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214|))) (let ((.cse27 (+ (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202|) .cse8))) (let ((.cse23 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190| 4294967296) .cse27)) (.cse19 (mod (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|) 2147483648))) (let ((.cse3 (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| (- 4294967295) |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36|)) (.cse6 (* (- 1) .cse19)) (.cse2 (+ .cse23 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178|)))) (let ((.cse10 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36|)) (.cse1 (+ (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| (- 4294967295)) .cse3 .cse6 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563| 4294967296) .cse2)) (.cse13 (* (- 4294967295) .cse19))) (let ((.cse22 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443| 4294967296) .cse10 .cse1 .cse13 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|)))) (let ((.cse18 (+ .cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142| 4294967296)))) (let ((.cse11 (+ .cse18 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130|)))) (let ((.cse21 (+ .cse11 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118| 4294967296)))) (let ((.cse24 (+ .cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106| 4294967296)))) (let ((.cse20 (+ .cse24 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95| 4294967296)))) (let ((.cse26 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| 2147483648) |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|)) (.cse17 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149_85| 2147483648) .cse19)) (.cse25 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84| 4294967296) .cse20))) (let ((.cse16 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73| 4294967296) .cse25)) (.cse15 (+ (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149|) .cse17 (* (- 2147483648) |aux_div_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62|))) (.cse28 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| 2147483648) .cse26)) (.cse12 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| .cse26)) (.cse14 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480| 4294967296)) (.cse4 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589| 4294967296)) (.cse5 (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| .cse26 (- 4294967295))) (.cse9 (* (- 2147483648) |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38|)) (.cse7 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589_97| 4294967296))) (or (not (= .cse1 .cse2)) (> 0 (+ .cse3 .cse4 .cse5 .cse6 (+ .cse7 .cse8) .cse9)) (> 0 (+ .cse10 (+ (+ .cse11 .cse7) .cse3 .cse4 .cse5 .cse6 .cse9) .cse12 .cse13 .cse9 .cse14)) (>= .cse15 2147483648) (>= .cse2 4294967296) (> 0 .cse16) (> 0 .cse17) (= .cse16 (+ .cse3 .cse4 .cse5 .cse6 (+ .cse18 .cse7) .cse9)) (> 0 .cse19) (>= .cse20 4294967296) (>= .cse11 4294967296) (> 0 .cse21) (>= .cse16 4294967296) (not (>= (+ .cse22 .cse7) .cse17)) (> 0 .cse8) (>= .cse8 4294967296) (> 0 .cse23) (> 0 .cse11) (>= .cse24 4294967296) (> 0 .cse24) (> 0 .cse25) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| 4294967296) (> 0 .cse15) (> 0 .cse26) (>= .cse27 4294967296) (> 0 .cse27) (>= (+ .cse23 .cse7) 4294967296) (>= (+ .cse3 .cse4 .cse5 .cse6 (+ .cse21 .cse7) .cse9) 4294967296) (> 0 .cse20) (>= .cse1 4294967296) (> 0 .cse1) (>= (+ .cse10 .cse12 (+ .cse3 .cse4 .cse5 (+ .cse7 .cse27) .cse6 .cse9) .cse13 .cse9 .cse14) (* .cse15 2)) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214|) (>= .cse23 4294967296) (>= .cse19 2147483648) (>= .cse21 4294967296) (= (* 2 .cse26) 1) (> 0 .cse28) (> 0 .cse2) (>= .cse17 4294967296) (>= .cse28 2147483648) (> 0 .cse18) (>= (+ .cse10 .cse12 .cse13 .cse9 .cse14 (+ .cse3 .cse4 .cse5 .cse6 (+ |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| .cse7) .cse9)) 4294967296) (>= .cse26 2147483648) (>= .cse18 4294967296) (> 0 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|) (>= |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| 2147483648) (>= .cse22 4294967296) (> 0 (+ .cse24 .cse7)) (> 0 .cse22) (>= .cse25 4294967296)))))))))))))))))) .cse0)) is different from true [2023-02-17 02:04:34,407 WARN L859 $PredicateComparison]: unable to prove that (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~A~0#1_45_56| Int) (|aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| Int)) (let ((.cse3 (mod |c_ULTIMATE.start_main_~B~0#1| 2147483648))) (let ((.cse0 (+ (* .cse3 (- 4294967295)) (* (- 1) |c_ULTIMATE.start_main_~B~0#1|) |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| 4294967296)))) (let ((.cse1 (+ .cse0 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67| 4294967296)))) (let ((.cse2 (+ .cse1 (* |aux_div_aux_mod_ULTIMATE.start_main_~A~0#1_45_56| 4294967296)))) (or (>= |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| 4294967296) (>= .cse0 4294967296) (> 0 .cse1) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172|) (> 0 .cse2) (not (>= .cse2 (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296))) (> 0 .cse0) (>= .cse1 4294967296) (>= .cse1 (* .cse3 2)) (>= .cse2 4294967296) (= .cse0 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172|))))))) is different from true [2023-02-17 02:04:36,451 WARN L859 $PredicateComparison]: unable to prove that (or (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~A~0#1_45_56| Int) (|aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| Int)) (let ((.cse3 (mod |c_ULTIMATE.start_main_~B~0#1| 2147483648))) (let ((.cse0 (+ (* .cse3 (- 4294967295)) (* (- 1) |c_ULTIMATE.start_main_~B~0#1|) |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| 4294967296)))) (let ((.cse1 (+ .cse0 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67| 4294967296)))) (let ((.cse2 (+ .cse1 (* |aux_div_aux_mod_ULTIMATE.start_main_~A~0#1_45_56| 4294967296)))) (or (>= |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172| 4294967296) (>= .cse0 4294967296) (> 0 .cse1) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172|) (> 0 .cse2) (not (>= .cse2 (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296))) (> 0 .cse0) (>= .cse1 4294967296) (>= .cse1 (* .cse3 2)) (>= .cse2 4294967296) (= .cse0 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~A~0#1_45_56_67_172|))))))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) is different from true [2023-02-17 02:04:37,265 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 35 proven. 20 refuted. 9 times theorem prover too weak. 66 trivial. 7 not checked. [2023-02-17 02:04:37,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:04:37,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652028609] [2023-02-17 02:04:37,266 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 02:04:37,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496406796] [2023-02-17 02:04:37,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496406796] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:04:37,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 02:04:37,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 27 [2023-02-17 02:04:37,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016993509] [2023-02-17 02:04:37,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 02:04:37,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-17 02:04:37,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:04:37,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-17 02:04:37,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=410, Unknown=22, NotChecked=180, Total=702 [2023-02-17 02:04:37,267 INFO L87 Difference]: Start difference. First operand 228 states and 268 transitions. Second operand has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 23 states have internal predecessors, (47), 9 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) [2023-02-17 02:04:39,271 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 [] [2023-02-17 02:04:41,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:04:43,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:04:46,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:04:50,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:04:53,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:04:55,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:02,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:04,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:05:10,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:12,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:14,912 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 [1] [2023-02-17 02:05:16,927 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| 1))) (and .cse0 (let ((.cse1 (= |c___VERIFIER_assert_#in~cond| 0))) (or (and (not .cse1) (or (not .cse0) (forall ((|aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589_97| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149| Int) (|aux_div_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142| Int)) (let ((.cse9 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214|))) (let ((.cse28 (+ (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202|) .cse9))) (let ((.cse24 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190| 4294967296) .cse28)) (.cse20 (mod (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|) 2147483648))) (let ((.cse4 (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| (- 4294967295) |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36|)) (.cse7 (* (- 1) .cse20)) (.cse3 (+ .cse24 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178|)))) (let ((.cse11 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36|)) (.cse2 (+ (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| (- 4294967295)) .cse4 .cse7 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563| 4294967296) .cse3)) (.cse14 (* (- 4294967295) .cse20))) (let ((.cse23 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443| 4294967296) .cse11 .cse2 .cse14 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|)))) (let ((.cse19 (+ .cse23 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142| 4294967296)))) (let ((.cse12 (+ .cse19 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130|)))) (let ((.cse22 (+ .cse12 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118| 4294967296)))) (let ((.cse25 (+ .cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106| 4294967296)))) (let ((.cse21 (+ .cse25 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95| 4294967296)))) (let ((.cse27 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| 2147483648) |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|)) (.cse18 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149_85| 2147483648) .cse20)) (.cse26 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84| 4294967296) .cse21))) (let ((.cse17 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73| 4294967296) .cse26)) (.cse16 (+ (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149|) .cse18 (* (- 2147483648) |aux_div_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62|))) (.cse29 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| 2147483648) .cse27)) (.cse13 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| .cse27)) (.cse15 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480| 4294967296)) (.cse5 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589| 4294967296)) (.cse6 (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| .cse27 (- 4294967295))) (.cse10 (* (- 2147483648) |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38|)) (.cse8 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589_97| 4294967296))) (or (not (= .cse2 .cse3)) (> 0 (+ .cse4 .cse5 .cse6 .cse7 (+ .cse8 .cse9) .cse10)) (> 0 (+ .cse11 (+ (+ .cse12 .cse8) .cse4 .cse5 .cse6 .cse7 .cse10) .cse13 .cse14 .cse10 .cse15)) (>= .cse16 2147483648) (>= .cse3 4294967296) (> 0 .cse17) (> 0 .cse18) (= .cse17 (+ .cse4 .cse5 .cse6 .cse7 (+ .cse19 .cse8) .cse10)) (> 0 .cse20) (>= .cse21 4294967296) (>= .cse12 4294967296) (> 0 .cse22) (>= .cse17 4294967296) (not (>= (+ .cse23 .cse8) .cse18)) (> 0 .cse9) (>= .cse9 4294967296) (> 0 .cse24) (> 0 .cse12) (>= .cse25 4294967296) (> 0 .cse25) (> 0 .cse26) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| 4294967296) (> 0 .cse16) (> 0 .cse27) (>= .cse28 4294967296) (> 0 .cse28) (>= (+ .cse24 .cse8) 4294967296) (>= (+ .cse4 .cse5 .cse6 .cse7 (+ .cse22 .cse8) .cse10) 4294967296) (> 0 .cse21) (>= .cse2 4294967296) (> 0 .cse2) (>= (+ .cse11 .cse13 (+ .cse4 .cse5 .cse6 (+ .cse8 .cse28) .cse7 .cse10) .cse14 .cse10 .cse15) (* .cse16 2)) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214|) (>= .cse24 4294967296) (>= .cse20 2147483648) (>= .cse22 4294967296) (= (* 2 .cse27) 1) (> 0 .cse29) (> 0 .cse3) (>= .cse18 4294967296) (>= .cse29 2147483648) (> 0 .cse19) (>= (+ .cse11 .cse13 .cse14 .cse10 .cse15 (+ .cse4 .cse5 .cse6 .cse7 (+ |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| .cse8) .cse10)) 4294967296) (>= .cse27 2147483648) (>= .cse19 4294967296) (> 0 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|) (>= |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| 2147483648) (>= .cse23 4294967296) (> 0 (+ .cse25 .cse8)) (> 0 .cse23) (>= .cse26 4294967296)))))))))))))))))) .cse1)))) is different from false [2023-02-17 02:05:18,941 WARN L837 $PredicateComparison]: unable to prove that (and (or (and (not (= |c___VERIFIER_assert_#in~cond| 0)) (or (not (= |c___VERIFIER_assert_#in~cond| 1)) (forall ((|aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589_97| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149| Int) (|aux_div_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149_85| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142| Int)) (let ((.cse7 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214|))) (let ((.cse26 (+ (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202|) .cse7))) (let ((.cse22 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190| 4294967296) .cse26)) (.cse18 (mod (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|) 2147483648))) (let ((.cse2 (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| (- 4294967295) |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36|)) (.cse5 (* (- 1) .cse18)) (.cse1 (+ .cse22 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178|)))) (let ((.cse9 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_36|)) (.cse0 (+ (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| (- 4294967295)) .cse2 .cse5 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563| 4294967296) .cse1)) (.cse12 (* (- 4294967295) .cse18))) (let ((.cse21 (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443| 4294967296) .cse9 .cse0 .cse12 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|)))) (let ((.cse17 (+ .cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142| 4294967296)))) (let ((.cse10 (+ .cse17 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130|)))) (let ((.cse20 (+ .cse10 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118| 4294967296)))) (let ((.cse23 (+ .cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106| 4294967296)))) (let ((.cse19 (+ .cse23 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95| 4294967296)))) (let ((.cse25 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| 2147483648) |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|)) (.cse16 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149_85| 2147483648) .cse18)) (.cse24 (+ (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84| 4294967296) .cse19))) (let ((.cse15 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73| 4294967296) .cse24)) (.cse14 (+ (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62_149|) .cse16 (* (- 2147483648) |aux_div_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_35_62|))) (.cse27 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| 2147483648) .cse25)) (.cse11 (* (- 1) |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| .cse25)) (.cse13 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480| 4294967296)) (.cse3 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589| 4294967296)) (.cse4 (* |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38| .cse25 (- 4294967295))) (.cse8 (* (- 2147483648) |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_38|)) (.cse6 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_34_62_480_589_97| 4294967296))) (or (not (= .cse0 .cse1)) (> 0 (+ .cse2 .cse3 .cse4 .cse5 (+ .cse6 .cse7) .cse8)) (> 0 (+ .cse9 (+ (+ .cse10 .cse6) .cse2 .cse3 .cse4 .cse5 .cse8) .cse11 .cse12 .cse8 .cse13)) (>= .cse14 2147483648) (>= .cse1 4294967296) (> 0 .cse15) (> 0 .cse16) (= .cse15 (+ .cse2 .cse3 .cse4 .cse5 (+ .cse17 .cse6) .cse8)) (> 0 .cse18) (>= .cse19 4294967296) (>= .cse10 4294967296) (> 0 .cse20) (>= .cse15 4294967296) (not (>= (+ .cse21 .cse6) .cse16)) (> 0 .cse7) (>= .cse7 4294967296) (> 0 .cse22) (> 0 .cse10) (>= .cse23 4294967296) (> 0 .cse23) (> 0 .cse24) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| 4294967296) (> 0 .cse14) (> 0 .cse25) (>= .cse26 4294967296) (> 0 .cse26) (>= (+ .cse22 .cse6) 4294967296) (>= (+ .cse2 .cse3 .cse4 .cse5 (+ .cse20 .cse6) .cse8) 4294967296) (> 0 .cse19) (>= .cse0 4294967296) (> 0 .cse0) (>= (+ .cse9 .cse11 (+ .cse2 .cse3 .cse4 (+ .cse6 .cse26) .cse5 .cse8) .cse12 .cse8 .cse13) (* .cse14 2)) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214|) (>= .cse22 4294967296) (>= .cse18 2147483648) (>= .cse20 4294967296) (= (* 2 .cse25) 1) (> 0 .cse27) (> 0 .cse1) (>= .cse16 4294967296) (>= .cse27 2147483648) (> 0 .cse17) (>= (+ .cse9 .cse11 .cse12 .cse8 .cse13 (+ .cse2 .cse3 .cse4 .cse5 (+ |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_34_62_73_84_95_106_118_130_142_443_563_178_190_202_214| .cse6) .cse8)) 4294967296) (>= .cse25 2147483648) (>= .cse17 4294967296) (> 0 |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84|) (>= |aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_32_62_73_84| 2147483648) (>= .cse21 4294967296) (> 0 (+ .cse23 .cse6)) (> 0 .cse21) (>= .cse24 4294967296)))))))))))))))))) (= c___VERIFIER_assert_~cond 0)) (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (= c___VERIFIER_assert_~cond 1)) is different from false [2023-02-17 02:05:20,959 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 [1] [2023-02-17 02:05:23,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:25,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:27,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:05:32,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:35,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:36,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:05:38,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:05:40,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:43,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:45,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:47,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:05:52,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:05:54,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:05:56,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:05:58,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:06:00,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:06:13,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:06:15,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-02-17 02:06:17,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-17 02:06:19,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1]