./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 b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/hard-u_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-?-b5317da-m [2023-02-16 02:21:08,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 02:21:08,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 02:21:08,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 02:21:08,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 02:21:08,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 02:21:08,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 02:21:08,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 02:21:08,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 02:21:08,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 02:21:08,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 02:21:08,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 02:21:08,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 02:21:08,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 02:21:08,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 02:21:08,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 02:21:08,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 02:21:08,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 02:21:08,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 02:21:08,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 02:21:08,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 02:21:08,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 02:21:08,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 02:21:08,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 02:21:08,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 02:21:08,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 02:21:08,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 02:21:08,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 02:21:08,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 02:21:08,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 02:21:08,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 02:21:08,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 02:21:08,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 02:21:08,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 02:21:08,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 02:21:08,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 02:21:08,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 02:21:08,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 02:21:08,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 02:21:08,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 02:21:08,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 02:21:08,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 02:21:08,167 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 02:21:08,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 02:21:08,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 02:21:08,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 02:21:08,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 02:21:08,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 02:21:08,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 02:21:08,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 02:21:08,175 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 02:21:08,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 02:21:08,175 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 02:21:08,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 02:21:08,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 02:21:08,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 02:21:08,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 02:21:08,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 02:21:08,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 02:21:08,177 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 02:21:08,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 02:21:08,177 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 02:21:08,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 02:21:08,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 02:21:08,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 02:21:08,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 02:21:08,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:21:08,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 02:21:08,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 02:21:08,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 02:21:08,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 02:21:08,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 02:21:08,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 02:21:08,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 02:21:08,179 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 02:21:08,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 02:21:08,179 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 02:21:08,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91dfff3356c8586e4ab54260d22ce3d78ead2ec4d531619c6564036666f10187 [2023-02-16 02:21:08,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 02:21:08,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 02:21:08,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 02:21:08,361 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 02:21:08,361 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 02:21:08,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound10.c [2023-02-16 02:21:09,283 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 02:21:09,475 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 02:21:09,475 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound10.c [2023-02-16 02:21:09,480 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/115cc0bd7/9cef827b4d20423a94ba6574628b981e/FLAG46dd85438 [2023-02-16 02:21:09,496 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/115cc0bd7/9cef827b4d20423a94ba6574628b981e [2023-02-16 02:21:09,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 02:21:09,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 02:21:09,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 02:21:09,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 02:21:09,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 02:21:09,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d8e367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09, skipping insertion in model container [2023-02-16 02:21:09,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 02:21:09,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 02:21:09,641 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] [2023-02-16 02:21:09,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:21:09,669 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 02:21:09,676 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] [2023-02-16 02:21:09,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:21:09,688 INFO L208 MainTranslator]: Completed translation [2023-02-16 02:21:09,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09 WrapperNode [2023-02-16 02:21:09,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 02:21:09,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 02:21:09,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 02:21:09,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 02:21:09,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,709 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-02-16 02:21:09,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 02:21:09,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 02:21:09,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 02:21:09,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 02:21:09,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,733 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 02:21:09,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 02:21:09,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 02:21:09,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 02:21:09,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (1/1) ... [2023-02-16 02:21:09,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:21:09,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:09,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 02:21:09,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 02:21:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 02:21:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 02:21:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 02:21:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 02:21:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-16 02:21:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-16 02:21:09,835 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 02:21:09,837 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 02:21:09,944 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 02:21:09,950 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 02:21:09,951 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 02:21:09,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:21:09 BoogieIcfgContainer [2023-02-16 02:21:09,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 02:21:09,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 02:21:09,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 02:21:09,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 02:21:09,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 02:21:09" (1/3) ... [2023-02-16 02:21:09,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47979b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:21:09, skipping insertion in model container [2023-02-16 02:21:09,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:21:09" (2/3) ... [2023-02-16 02:21:09,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47979b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:21:09, skipping insertion in model container [2023-02-16 02:21:09,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:21:09" (3/3) ... [2023-02-16 02:21:09,957 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound10.c [2023-02-16 02:21:09,972 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 02:21:09,972 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 02:21:10,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 02:21:10,007 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;@3622fd36, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 02:21:10,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 02:21:10,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-16 02:21:10,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 02:21:10,015 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:10,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:10,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:10,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:10,019 INFO L85 PathProgramCache]: Analyzing trace with hash -712527539, now seen corresponding path program 1 times [2023-02-16 02:21:10,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:10,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469219167] [2023-02-16 02:21:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:10,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:10,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469219167] [2023-02-16 02:21:10,109 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 02:21:10,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968027312] [2023-02-16 02:21:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:10,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:10,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:10,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:10,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 02:21:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:10,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 02:21:10,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:10,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:10,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968027312] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:10,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:10,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 02:21:10,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145563370] [2023-02-16 02:21:10,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:10,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 02:21:10,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:10,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 02:21:10,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:21:10,253 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:10,267 INFO L93 Difference]: Finished difference Result 53 states and 87 transitions. [2023-02-16 02:21:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 02:21:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 02:21:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:10,301 INFO L225 Difference]: With dead ends: 53 [2023-02-16 02:21:10,301 INFO L226 Difference]: Without dead ends: 24 [2023-02-16 02:21:10,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:21:10,305 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:10,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-16 02:21:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-16 02:21:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2023-02-16 02:21:10,343 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 34 transitions. Word has length 10 [2023-02-16 02:21:10,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:10,344 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 34 transitions. [2023-02-16 02:21:10,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:10,345 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2023-02-16 02:21:10,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 02:21:10,346 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:10,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:10,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:10,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-16 02:21:10,557 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:10,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:10,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1983932575, now seen corresponding path program 1 times [2023-02-16 02:21:10,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:10,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212435227] [2023-02-16 02:21:10,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:10,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:10,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:10,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:10,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212435227] [2023-02-16 02:21:10,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212435227] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:10,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:10,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:21:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653535003] [2023-02-16 02:21:10,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:10,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:10,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:10,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:10,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:10,741 INFO L87 Difference]: Start difference. First operand 24 states and 34 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:10,795 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2023-02-16 02:21:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:21:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-16 02:21:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:10,796 INFO L225 Difference]: With dead ends: 38 [2023-02-16 02:21:10,796 INFO L226 Difference]: Without dead ends: 36 [2023-02-16 02:21:10,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 02:21:10,798 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 15 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:10,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 106 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:10,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-16 02:21:10,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2023-02-16 02:21:10,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-02-16 02:21:10,805 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 10 [2023-02-16 02:21:10,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:10,805 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-02-16 02:21:10,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-02-16 02:21:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 02:21:10,806 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:10,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:10,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 02:21:10,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:10,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1787143384, now seen corresponding path program 1 times [2023-02-16 02:21:10,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:10,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101593147] [2023-02-16 02:21:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:10,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:10,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:10,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101593147] [2023-02-16 02:21:10,819 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 02:21:10,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955539601] [2023-02-16 02:21:10,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:10,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:10,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:10,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:10,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 02:21:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:10,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 02:21:10,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:10,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:10,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:10,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955539601] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:10,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:10,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 02:21:10,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603043349] [2023-02-16 02:21:10,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:10,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 02:21:10,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:10,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 02:21:10,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 02:21:10,908 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:10,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:10,933 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2023-02-16 02:21:10,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 02:21:10,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-16 02:21:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:10,934 INFO L225 Difference]: With dead ends: 44 [2023-02-16 02:21:10,936 INFO L226 Difference]: Without dead ends: 30 [2023-02-16 02:21:10,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 02:21:10,937 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:10,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-16 02:21:10,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-16 02:21:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:10,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-02-16 02:21:10,946 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 12 [2023-02-16 02:21:10,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:10,947 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-02-16 02:21:10,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 02:21:10,947 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-02-16 02:21:10,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 02:21:10,947 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:10,947 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:10,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:11,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-02-16 02:21:11,149 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:11,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:11,149 INFO L85 PathProgramCache]: Analyzing trace with hash 472519838, now seen corresponding path program 1 times [2023-02-16 02:21:11,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:11,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618383185] [2023-02-16 02:21:11,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:11,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-02-16 02:21:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:11,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:21:11,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:11,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618383185] [2023-02-16 02:21:11,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618383185] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:11,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:11,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:21:11,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027278033] [2023-02-16 02:21:11,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:11,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:11,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:11,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:11,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:11,291 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 02:21:11,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:11,343 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2023-02-16 02:21:11,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 02:21:11,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-16 02:21:11,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:11,345 INFO L225 Difference]: With dead ends: 44 [2023-02-16 02:21:11,345 INFO L226 Difference]: Without dead ends: 42 [2023-02-16 02:21:11,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 02:21:11,348 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 13 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:11,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 102 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:11,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-16 02:21:11,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2023-02-16 02:21:11,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:21:11,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-02-16 02:21:11,357 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 15 [2023-02-16 02:21:11,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:11,357 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-02-16 02:21:11,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 02:21:11,357 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-02-16 02:21:11,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-16 02:21:11,358 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:11,358 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:11,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 02:21:11,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:11,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:11,359 INFO L85 PathProgramCache]: Analyzing trace with hash 838495553, now seen corresponding path program 1 times [2023-02-16 02:21:11,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:11,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45799459] [2023-02-16 02:21:11,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:11,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:11,368 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:11,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537446734] [2023-02-16 02:21:11,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:11,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:11,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:11,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:11,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 02:21:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:11,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-16 02:21:11,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 02:21:11,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 02:21:12,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:12,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45799459] [2023-02-16 02:21:12,144 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:12,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537446734] [2023-02-16 02:21:12,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537446734] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:12,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:12,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2023-02-16 02:21:12,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185211286] [2023-02-16 02:21:12,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:12,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 02:21:12,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:12,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 02:21:12,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-16 02:21:12,148 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 02:21:14,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:16,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:20,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:22,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:23,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:23,520 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2023-02-16 02:21:23,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 02:21:23,522 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2023-02-16 02:21:23,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:23,524 INFO L225 Difference]: With dead ends: 78 [2023-02-16 02:21:23,524 INFO L226 Difference]: Without dead ends: 63 [2023-02-16 02:21:23,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-02-16 02:21:23,525 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 92 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 81 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:23,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 86 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 177 Invalid, 4 Unknown, 0 Unchecked, 11.1s Time] [2023-02-16 02:21:23,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-16 02:21:23,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2023-02-16 02:21:23,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 41 states have internal predecessors, (47), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-16 02:21:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2023-02-16 02:21:23,548 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 20 [2023-02-16 02:21:23,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:23,548 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2023-02-16 02:21:23,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 02:21:23,549 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2023-02-16 02:21:23,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 02:21:23,549 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:23,550 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:23,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:23,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:23,757 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:23,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash 414140572, now seen corresponding path program 1 times [2023-02-16 02:21:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:23,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476266940] [2023-02-16 02:21:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:23,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:23,763 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:23,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083854353] [2023-02-16 02:21:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:23,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:23,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:23,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:23,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 02:21:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:23,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 02:21:23,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:23,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:23,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:23,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476266940] [2023-02-16 02:21:23,845 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:23,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083854353] [2023-02-16 02:21:23,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083854353] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:23,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:23,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 02:21:23,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021816872] [2023-02-16 02:21:23,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:23,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:21:23,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:23,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:21:23,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:23,846 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:23,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:23,868 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2023-02-16 02:21:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 02:21:23,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-02-16 02:21:23,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:23,869 INFO L225 Difference]: With dead ends: 76 [2023-02-16 02:21:23,870 INFO L226 Difference]: Without dead ends: 69 [2023-02-16 02:21:23,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:21:23,870 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:23,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 117 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:23,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-16 02:21:23,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-02-16 02:21:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 47 states have internal predecessors, (52), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-16 02:21:23,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2023-02-16 02:21:23,879 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 28 [2023-02-16 02:21:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:23,880 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2023-02-16 02:21:23,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2023-02-16 02:21:23,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 02:21:23,881 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:23,881 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:23,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-16 02:21:24,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:24,085 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:24,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:24,086 INFO L85 PathProgramCache]: Analyzing trace with hash 415868450, now seen corresponding path program 1 times [2023-02-16 02:21:24,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:24,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994783713] [2023-02-16 02:21:24,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:24,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:24,091 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:24,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884331756] [2023-02-16 02:21:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:24,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:24,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:24,092 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:24,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 02:21:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:24,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-16 02:21:24,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:24,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:21:24,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:24,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994783713] [2023-02-16 02:21:24,244 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:24,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884331756] [2023-02-16 02:21:24,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884331756] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:21:24,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:21:24,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-16 02:21:24,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956680235] [2023-02-16 02:21:24,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:21:24,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 02:21:24,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:24,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 02:21:24,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-02-16 02:21:24,256 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:24,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:24,709 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2023-02-16 02:21:24,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 02:21:24,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-02-16 02:21:24,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:24,710 INFO L225 Difference]: With dead ends: 75 [2023-02-16 02:21:24,710 INFO L226 Difference]: Without dead ends: 63 [2023-02-16 02:21:24,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-02-16 02:21:24,711 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:24,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 107 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-16 02:21:24,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-16 02:21:24,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-16 02:21:24,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.2) internal successors, (48), 43 states have internal predecessors, (48), 15 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-02-16 02:21:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2023-02-16 02:21:24,731 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 28 [2023-02-16 02:21:24,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:24,731 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2023-02-16 02:21:24,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 02:21:24,731 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2023-02-16 02:21:24,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-16 02:21:24,732 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:24,732 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:24,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:24,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:24,937 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:24,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1040101153, now seen corresponding path program 1 times [2023-02-16 02:21:24,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:24,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134325227] [2023-02-16 02:21:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:24,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:24,950 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:24,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93471856] [2023-02-16 02:21:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:24,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:24,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:24,952 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:24,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 02:21:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:24,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 02:21:24,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:25,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 02:21:25,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:25,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134325227] [2023-02-16 02:21:25,040 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:25,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93471856] [2023-02-16 02:21:25,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93471856] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:25,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:25,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-02-16 02:21:25,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670563187] [2023-02-16 02:21:25,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:25,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 02:21:25,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:25,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 02:21:25,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-16 02:21:25,042 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:21:25,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:25,113 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2023-02-16 02:21:25,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 02:21:25,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-02-16 02:21:25,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:25,115 INFO L225 Difference]: With dead ends: 134 [2023-02-16 02:21:25,115 INFO L226 Difference]: Without dead ends: 112 [2023-02-16 02:21:25,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-02-16 02:21:25,116 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 34 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:25,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 155 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:21:25,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-02-16 02:21:25,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2023-02-16 02:21:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 73 states have internal predecessors, (82), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-02-16 02:21:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2023-02-16 02:21:25,125 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 30 [2023-02-16 02:21:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:25,126 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2023-02-16 02:21:25,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-16 02:21:25,126 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2023-02-16 02:21:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 02:21:25,127 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:25,127 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:25,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:25,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:25,331 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:25,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2101649637, now seen corresponding path program 1 times [2023-02-16 02:21:25,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:25,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700803213] [2023-02-16 02:21:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:25,337 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:25,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235504006] [2023-02-16 02:21:25,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:25,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:25,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:25,338 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:25,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 02:21:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:25,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 02:21:25,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-16 02:21:25,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-16 02:21:25,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:25,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700803213] [2023-02-16 02:21:25,484 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:25,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235504006] [2023-02-16 02:21:25,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235504006] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:25,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:25,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-02-16 02:21:25,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104234094] [2023-02-16 02:21:25,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:25,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 02:21:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:25,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 02:21:25,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-16 02:21:25,488 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-16 02:21:25,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:25,602 INFO L93 Difference]: Finished difference Result 199 states and 238 transitions. [2023-02-16 02:21:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 02:21:25,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 46 [2023-02-16 02:21:25,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:25,604 INFO L225 Difference]: With dead ends: 199 [2023-02-16 02:21:25,604 INFO L226 Difference]: Without dead ends: 185 [2023-02-16 02:21:25,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-02-16 02:21:25,605 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 71 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:25,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 264 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:21:25,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-02-16 02:21:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 178. [2023-02-16 02:21:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 115 states have (on average 1.182608695652174) internal successors, (136), 122 states have internal predecessors, (136), 40 states have call successors, (40), 22 states have call predecessors, (40), 22 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2023-02-16 02:21:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 212 transitions. [2023-02-16 02:21:25,634 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 212 transitions. Word has length 46 [2023-02-16 02:21:25,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:25,634 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 212 transitions. [2023-02-16 02:21:25,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-16 02:21:25,634 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 212 transitions. [2023-02-16 02:21:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 02:21:25,636 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:25,637 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:25,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:25,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:25,849 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:25,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:25,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2103377515, now seen corresponding path program 1 times [2023-02-16 02:21:25,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:25,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574505677] [2023-02-16 02:21:25,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:25,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:25,855 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:25,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859859517] [2023-02-16 02:21:25,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:25,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:25,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:25,856 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:25,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 02:21:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:25,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-16 02:21:25,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:26,103 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 14 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:21:26,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 20 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 02:21:27,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:27,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574505677] [2023-02-16 02:21:27,564 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:27,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859859517] [2023-02-16 02:21:27,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859859517] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:27,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:27,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2023-02-16 02:21:27,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852970628] [2023-02-16 02:21:27,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:27,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-16 02:21:27,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:27,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-16 02:21:27,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-02-16 02:21:27,566 INFO L87 Difference]: Start difference. First operand 178 states and 212 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-16 02:21:29,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:31,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:31,489 INFO L93 Difference]: Finished difference Result 232 states and 285 transitions. [2023-02-16 02:21:31,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 02:21:31,489 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 46 [2023-02-16 02:21:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:31,494 INFO L225 Difference]: With dead ends: 232 [2023-02-16 02:21:31,494 INFO L226 Difference]: Without dead ends: 230 [2023-02-16 02:21:31,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-02-16 02:21:31,496 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 58 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:31,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 137 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2023-02-16 02:21:31,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-02-16 02:21:31,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 225. [2023-02-16 02:21:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 147 states have (on average 1.1972789115646258) internal successors, (176), 159 states have internal predecessors, (176), 51 states have call successors, (51), 26 states have call predecessors, (51), 26 states have return successors, (47), 39 states have call predecessors, (47), 47 states have call successors, (47) [2023-02-16 02:21:31,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 274 transitions. [2023-02-16 02:21:31,516 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 274 transitions. Word has length 46 [2023-02-16 02:21:31,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:31,517 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 274 transitions. [2023-02-16 02:21:31,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 13 states have internal predecessors, (36), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-16 02:21:31,517 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 274 transitions. [2023-02-16 02:21:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-16 02:21:31,521 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:31,521 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:31,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:31,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-16 02:21:31,728 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:31,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:31,728 INFO L85 PathProgramCache]: Analyzing trace with hash -246714477, now seen corresponding path program 1 times [2023-02-16 02:21:31,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:31,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834877009] [2023-02-16 02:21:31,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:31,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:31,733 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:31,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750999648] [2023-02-16 02:21:31,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:31,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:31,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:31,738 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:31,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 02:21:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:31,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 30 conjunts are in the unsatisfiable core [2023-02-16 02:21:31,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 29 proven. 39 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-02-16 02:21:31,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:21:32,281 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-02-16 02:21:32,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:21:32,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834877009] [2023-02-16 02:21:32,282 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:21:32,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750999648] [2023-02-16 02:21:32,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750999648] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:21:32,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:21:32,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2023-02-16 02:21:32,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419125806] [2023-02-16 02:21:32,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:21:32,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 02:21:32,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:21:32,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 02:21:32,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-02-16 02:21:32,283 INFO L87 Difference]: Start difference. First operand 225 states and 274 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 02:21:34,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:39,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-02-16 02:21:41,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:21:41,644 INFO L93 Difference]: Finished difference Result 276 states and 334 transitions. [2023-02-16 02:21:41,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 02:21:41,644 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 56 [2023-02-16 02:21:41,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:21:41,645 INFO L225 Difference]: With dead ends: 276 [2023-02-16 02:21:41,645 INFO L226 Difference]: Without dead ends: 254 [2023-02-16 02:21:41,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-02-16 02:21:41,646 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 27 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:21:41,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 248 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2023-02-16 02:21:41,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-02-16 02:21:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 242. [2023-02-16 02:21:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 161 states have (on average 1.173913043478261) internal successors, (189), 172 states have internal predecessors, (189), 51 states have call successors, (51), 29 states have call predecessors, (51), 29 states have return successors, (48), 40 states have call predecessors, (48), 48 states have call successors, (48) [2023-02-16 02:21:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 288 transitions. [2023-02-16 02:21:41,671 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 288 transitions. Word has length 56 [2023-02-16 02:21:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:21:41,671 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 288 transitions. [2023-02-16 02:21:41,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 6 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 02:21:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 288 transitions. [2023-02-16 02:21:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-16 02:21:41,673 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:21:41,673 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:21:41,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-16 02:21:41,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:41,878 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:21:41,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:21:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash 98519191, now seen corresponding path program 1 times [2023-02-16 02:21:41,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:21:41,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640298198] [2023-02-16 02:21:41,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:41,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:21:41,888 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:21:41,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783958596] [2023-02-16 02:21:41,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:21:41,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:21:41,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:21:41,889 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 02:21:41,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 02:21:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:21:42,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-16 02:21:42,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:21:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 35 proven. 26 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-02-16 02:21:42,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:23:12,659 WARN L233 SmtUtils]: Spent 14.29s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-16 02:24:53,256 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 14 DAG size of output: 1 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-16 02:25:41,928 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| Int)) (let ((.cse1 (mod (+ (* |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) 4294967296))) (let ((.cse28 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| 4294967296)) (.cse26 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2)) (.cse27 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| 4294967296)) (.cse29 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| 4294967296)) (.cse22 (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse3 (div .cse1 2))) (let ((.cse9 (* .cse3 4294967296)) (.cse14 (* .cse22 4294967296)) (.cse7 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse29)) (.cse17 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372039002259456)) (.cse15 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 9223372039002259456)) (.cse16 (* (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648)) (.cse0 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 4294967296)) (.cse23 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29)) (.cse18 (+ .cse26 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse8 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| 4294967296)) (.cse21 (* .cse3 4294967295)) (.cse10 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372034707292160)) (.cse11 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse12 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse13 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse19 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| 2)) (.cse25 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| 2)) (.cse4 (* (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 4294967295)) (.cse5 (* .cse22 4294967295)) (.cse2 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| 4294967296)) (.cse6 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| 2)) (.cse24 (+ .cse26 .cse27 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29))) (or (< (+ .cse0 .cse1) 0) (< (+ .cse2 4294967295) (+ .cse3 .cse4 .cse5)) (< .cse6 0) (< .cse7 0) (<= 4294967296 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 4294967296) .cse0 .cse1)) (< (+ .cse8 .cse2 4294967295) (+ .cse9 .cse4 .cse10 .cse11 .cse12 .cse13 .cse14)) (< (+ .cse9 .cse4 .cse15 .cse16 .cse17 .cse12 .cse13 .cse14) (+ .cse8 .cse2 1)) (< .cse18 0) (< .cse6 (+ .cse19 .cse20)) (<= 4294967296 .cse7) (<= 4294967296 .cse6) (< (+ .cse21 .cse15 .cse16 .cse17 .cse1 .cse12 .cse13 .cse22) (+ .cse8 1)) (< (+ .cse15 .cse16 .cse0 .cse1) (+ .cse11 1)) (< .cse23 0) (< .cse24 0) (< .cse6 (+ .cse19 .cse20 .cse25)) (<= 4294967296 .cse23) (<= 4294967296 .cse18) (<= (+ .cse19 .cse20 2) .cse6) (<= (+ .cse20 2) .cse6) (< (+ .cse8 4294967295) (+ .cse21 .cse10 .cse11 .cse12 .cse13 .cse22)) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2) (<= (+ .cse19 .cse20 .cse25 2) .cse6) (< (+ .cse3 .cse4 .cse5 4294967295) (+ .cse1 .cse2)) (< .cse6 .cse20) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|) (<= 4294967296 .cse24)))))) is different from false [2023-02-16 02:25:43,936 WARN L859 $PredicateComparison]: unable to prove that (forall ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| Int) (|v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| Int)) (let ((.cse1 (mod (+ (* |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) (* 2 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) 4294967296))) (let ((.cse28 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84| 4294967296)) (.cse26 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2)) (.cse27 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502| 4294967296)) (.cse29 (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| 4294967296)) (.cse22 (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_29| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse3 (div .cse1 2))) (let ((.cse9 (* .cse3 4294967296)) (.cse14 (* .cse22 4294967296)) (.cse7 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse29)) (.cse17 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372039002259456)) (.cse15 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 9223372039002259456)) (.cse16 (* (* |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 2147483648)) (.cse0 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 4294967296)) (.cse23 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29)) (.cse18 (+ .cse26 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse8 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380| 4294967296)) (.cse21 (* .cse3 4294967295)) (.cse10 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73_84| 9223372034707292160)) (.cse11 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse12 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse13 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|)) (.cse19 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108| 2)) (.cse25 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120| 2)) (.cse4 (* (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| |v_ULTIMATE.start_main_~B~0#1_BEFORE_CALL_46|) 4294967295)) (.cse5 (* .cse22 4294967295)) (.cse2 (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_36_62_380_835| 4294967296)) (.cse6 (+ .cse26 .cse27 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|)) (.cse20 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97| 2)) (.cse24 (+ .cse26 .cse27 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| .cse28 .cse29))) (or (< (+ .cse0 .cse1) 0) (< (+ .cse2 4294967295) (+ .cse3 .cse4 .cse5)) (< .cse6 0) (< .cse7 0) (<= 4294967296 (+ (* |aux_div_aux_mod_v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_37_62_73| 4294967296) .cse0 .cse1)) (< (+ .cse8 .cse2 4294967295) (+ .cse9 .cse4 .cse10 .cse11 .cse12 .cse13 .cse14)) (< (+ .cse9 .cse4 .cse15 .cse16 .cse17 .cse12 .cse13 .cse14) (+ .cse8 .cse2 1)) (< .cse18 0) (< .cse6 (+ .cse19 .cse20)) (<= 4294967296 .cse7) (<= 4294967296 .cse6) (< (+ .cse21 .cse15 .cse16 .cse17 .cse1 .cse12 .cse13 .cse22) (+ .cse8 1)) (< (+ .cse15 .cse16 .cse0 .cse1) (+ .cse11 1)) (< .cse23 0) (< .cse24 0) (< .cse6 (+ .cse19 .cse20 .cse25)) (<= 4294967296 .cse23) (<= 4294967296 .cse18) (<= (+ .cse19 .cse20 2) .cse6) (<= (+ .cse20 2) .cse6) (< (+ .cse8 4294967295) (+ .cse21 .cse10 .cse11 .cse12 .cse13 .cse22)) (>= |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144| 2) (<= (+ .cse19 .cse20 .cse25 2) .cse6) (< (+ .cse3 .cse4 .cse5 4294967295) (+ .cse1 .cse2)) (< .cse6 .cse20) (> 0 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_28_62_73_84_95_97_108_120_502_144|) (<= 4294967296 .cse24)))))) is different from true