./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_loop-simple/recursified_nested_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/recursified_loop-simple/recursified_nested_5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9dfd2bf12e8d041fe6d1d6bf651e6b1ba93f167a26b0485680374a443f598c5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:50:41,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:50:41,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:50:41,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:50:41,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:50:41,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:50:41,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:50:41,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:50:41,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:50:41,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:50:41,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:50:41,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:50:41,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:50:41,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:50:41,858 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:50:41,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:50:41,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:50:41,859 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:50:41,859 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:50:41,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:50:41,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:50:41,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:50:41,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:50:41,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:50:41,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:50:41,863 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:50:41,864 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:50:41,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:50:41,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:50:41,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:50:41,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:50:41,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:50:41,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:50:41,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:50:41,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:50:41,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:50:41,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:50:41,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:50:41,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:50:41,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:50:41,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:50:41,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:50:41,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:50:41,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:50:41,868 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9dfd2bf12e8d041fe6d1d6bf651e6b1ba93f167a26b0485680374a443f598c5 [2024-11-12 17:50:42,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:50:42,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:50:42,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:50:42,176 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:50:42,177 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:50:42,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-simple/recursified_nested_5.c [2024-11-12 17:50:43,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:50:43,748 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:50:43,748 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_5.c [2024-11-12 17:50:43,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/129b14eed/f1aabcf319384d15a1a3cf7d29430092/FLAGddc19b278 [2024-11-12 17:50:43,768 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/129b14eed/f1aabcf319384d15a1a3cf7d29430092 [2024-11-12 17:50:43,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:50:43,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:50:43,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:50:43,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:50:43,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:50:43,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:50:43" (1/1) ... [2024-11-12 17:50:43,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa5b835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:43, skipping insertion in model container [2024-11-12 17:50:43,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:50:43" (1/1) ... [2024-11-12 17:50:43,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:50:43,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:50:44,012 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:50:44,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:50:44,047 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:50:44,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44 WrapperNode [2024-11-12 17:50:44,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:50:44,049 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:50:44,049 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:50:44,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:50:44,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,077 INFO L138 Inliner]: procedures = 16, calls = 63, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2024-11-12 17:50:44,078 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:50:44,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:50:44,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:50:44,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:50:44,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,101 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,122 INFO L175 MemorySlicer]: Split 32 memory accesses to 6 slices as follows [2, 6, 6, 6, 6, 6]. 19 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 1, 1, 1, 1, 1]. The 10 writes are split as follows [0, 2, 2, 2, 2, 2]. [2024-11-12 17:50:44,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:50:44,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:50:44,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:50:44,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:50:44,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (1/1) ... [2024-11-12 17:50:44,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:50:44,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:44,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 17:50:44,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 17:50:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:50:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:50:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 17:50:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 17:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 17:50:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 17:50:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_24_to_25_0 [2024-11-12 17:50:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_24_to_25_0 [2024-11-12 17:50:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_23_to_24_0 [2024-11-12 17:50:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_23_to_24_0 [2024-11-12 17:50:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_25_to_26_0 [2024-11-12 17:50:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_25_to_26_0 [2024-11-12 17:50:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:50:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 17:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 17:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 17:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 17:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 17:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 17:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_27_to_27_0 [2024-11-12 17:50:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_27_to_27_0 [2024-11-12 17:50:44,220 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_26_to_27_0 [2024-11-12 17:50:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_26_to_27_0 [2024-11-12 17:50:44,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 17:50:44,314 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:50:44,316 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:50:44,624 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-12 17:50:44,624 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:50:44,639 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:50:44,640 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 17:50:44,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:50:44 BoogieIcfgContainer [2024-11-12 17:50:44,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:50:44,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:50:44,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:50:44,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:50:44,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:50:43" (1/3) ... [2024-11-12 17:50:44,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13144591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:50:44, skipping insertion in model container [2024-11-12 17:50:44,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:44" (2/3) ... [2024-11-12 17:50:44,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13144591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:50:44, skipping insertion in model container [2024-11-12 17:50:44,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:50:44" (3/3) ... [2024-11-12 17:50:44,648 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_nested_5.c [2024-11-12 17:50:44,663 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:50:44,663 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-12 17:50:44,711 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:50:44,716 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7b913bdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:50:44,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-12 17:50:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-12 17:50:44,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-12 17:50:44,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:44,725 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:44,726 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:44,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:44,730 INFO L85 PathProgramCache]: Analyzing trace with hash -57619265, now seen corresponding path program 1 times [2024-11-12 17:50:44,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:44,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690386562] [2024-11-12 17:50:44,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:44,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:45,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:50:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:45,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:45,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690386562] [2024-11-12 17:50:45,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690386562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:45,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:45,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 17:50:45,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492002655] [2024-11-12 17:50:45,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:45,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:50:45,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:45,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:50:45,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:50:45,363 INFO L87 Difference]: Start difference. First operand has 70 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 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) [2024-11-12 17:50:45,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:45,682 INFO L93 Difference]: Finished difference Result 146 states and 180 transitions. [2024-11-12 17:50:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:50:45,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 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 12 [2024-11-12 17:50:45,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:45,696 INFO L225 Difference]: With dead ends: 146 [2024-11-12 17:50:45,696 INFO L226 Difference]: Without dead ends: 62 [2024-11-12 17:50:45,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:50:45,706 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 19 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:45,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 221 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:50:45,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-12 17:50:45,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2024-11-12 17:50:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 45 states have internal predecessors, (45), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-12 17:50:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2024-11-12 17:50:45,740 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 12 [2024-11-12 17:50:45,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:45,741 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2024-11-12 17:50:45,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 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) [2024-11-12 17:50:45,741 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2024-11-12 17:50:45,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-12 17:50:45,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:45,743 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:45,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 17:50:45,743 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:45,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:45,744 INFO L85 PathProgramCache]: Analyzing trace with hash 780750332, now seen corresponding path program 1 times [2024-11-12 17:50:45,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:45,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386851745] [2024-11-12 17:50:45,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:45,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:45,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:50:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:45,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:45,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386851745] [2024-11-12 17:50:45,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386851745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:45,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:45,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 17:50:45,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501034307] [2024-11-12 17:50:45,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:46,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:50:46,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:46,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:50:46,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:50:46,003 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:50:46,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:46,226 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2024-11-12 17:50:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:50:46,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-12 17:50:46,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:46,229 INFO L225 Difference]: With dead ends: 72 [2024-11-12 17:50:46,229 INFO L226 Difference]: Without dead ends: 68 [2024-11-12 17:50:46,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:50:46,230 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 32 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:46,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 196 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-12 17:50:46,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2024-11-12 17:50:46,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 49 states have internal predecessors, (50), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-12 17:50:46,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2024-11-12 17:50:46,240 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 15 [2024-11-12 17:50:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:46,241 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-12 17:50:46,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:50:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2024-11-12 17:50:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 17:50:46,242 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:46,242 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:46,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 17:50:46,242 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_27_to_27_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:46,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:46,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1520081603, now seen corresponding path program 1 times [2024-11-12 17:50:46,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:46,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579665670] [2024-11-12 17:50:46,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:46,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:46,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:46,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579665670] [2024-11-12 17:50:46,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579665670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:46,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:46,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 17:50:46,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239503050] [2024-11-12 17:50:46,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:46,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:50:46,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:46,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:50:46,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:50:46,461 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:46,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:46,532 INFO L93 Difference]: Finished difference Result 126 states and 154 transitions. [2024-11-12 17:50:46,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:50:46,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-12 17:50:46,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:46,534 INFO L225 Difference]: With dead ends: 126 [2024-11-12 17:50:46,534 INFO L226 Difference]: Without dead ends: 67 [2024-11-12 17:50:46,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:50:46,538 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 5 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:46,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 273 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:46,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-12 17:50:46,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2024-11-12 17:50:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 39 states have (on average 1.358974358974359) internal successors, (53), 51 states have internal predecessors, (53), 11 states have call successors, (11), 7 states have call predecessors, (11), 5 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-12 17:50:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2024-11-12 17:50:46,555 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 18 [2024-11-12 17:50:46,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:46,555 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2024-11-12 17:50:46,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:46,556 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2024-11-12 17:50:46,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 17:50:46,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:46,557 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:46,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 17:50:46,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_25_to_26_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:46,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1526395918, now seen corresponding path program 1 times [2024-11-12 17:50:46,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:46,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78521057] [2024-11-12 17:50:46,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:46,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:46,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 17:50:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:46,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:46,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78521057] [2024-11-12 17:50:46,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78521057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:46,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:46,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 17:50:46,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364841909] [2024-11-12 17:50:46,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:46,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 17:50:46,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:46,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 17:50:46,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:50:46,784 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:50:46,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:46,992 INFO L93 Difference]: Finished difference Result 141 states and 170 transitions. [2024-11-12 17:50:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 17:50:46,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-12 17:50:46,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:46,995 INFO L225 Difference]: With dead ends: 141 [2024-11-12 17:50:46,995 INFO L226 Difference]: Without dead ends: 79 [2024-11-12 17:50:46,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:50:46,997 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 29 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:46,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 266 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:47,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-12 17:50:47,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 74. [2024-11-12 17:50:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 56 states have internal predecessors, (59), 12 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-12 17:50:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2024-11-12 17:50:47,014 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 18 [2024-11-12 17:50:47,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:47,015 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2024-11-12 17:50:47,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:50:47,015 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2024-11-12 17:50:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-12 17:50:47,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:47,016 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:47,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 17:50:47,016 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_27_to_27_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:47,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:47,017 INFO L85 PathProgramCache]: Analyzing trace with hash -122110496, now seen corresponding path program 1 times [2024-11-12 17:50:47,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:47,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973036131] [2024-11-12 17:50:47,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:47,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:47,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:47,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973036131] [2024-11-12 17:50:47,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973036131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:47,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:47,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 17:50:47,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56418605] [2024-11-12 17:50:47,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:47,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:50:47,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:47,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:50:47,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:50:47,098 INFO L87 Difference]: Start difference. First operand 74 states and 84 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:47,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:47,116 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2024-11-12 17:50:47,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 17:50:47,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-12 17:50:47,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:47,117 INFO L225 Difference]: With dead ends: 74 [2024-11-12 17:50:47,117 INFO L226 Difference]: Without dead ends: 73 [2024-11-12 17:50:47,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:50:47,119 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:47,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:47,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-12 17:50:47,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-12 17:50:47,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 45 states have (on average 1.288888888888889) internal successors, (58), 55 states have internal predecessors, (58), 12 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-12 17:50:47,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2024-11-12 17:50:47,126 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 19 [2024-11-12 17:50:47,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:47,126 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2024-11-12 17:50:47,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2024-11-12 17:50:47,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-12 17:50:47,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:47,128 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:47,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 17:50:47,128 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_25_to_26_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:47,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:47,129 INFO L85 PathProgramCache]: Analyzing trace with hash 73633256, now seen corresponding path program 1 times [2024-11-12 17:50:47,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:47,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204791475] [2024-11-12 17:50:47,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:47,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:47,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 17:50:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:47,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:47,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204791475] [2024-11-12 17:50:47,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204791475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:47,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:47,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 17:50:47,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021370129] [2024-11-12 17:50:47,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:47,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:50:47,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:47,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:50:47,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:50:47,204 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:50:47,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:47,301 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2024-11-12 17:50:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:50:47,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-12 17:50:47,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:47,303 INFO L225 Difference]: With dead ends: 75 [2024-11-12 17:50:47,303 INFO L226 Difference]: Without dead ends: 74 [2024-11-12 17:50:47,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:50:47,304 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 21 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:47,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 185 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:47,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-12 17:50:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2024-11-12 17:50:47,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 54 states have internal predecessors, (57), 12 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-12 17:50:47,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2024-11-12 17:50:47,312 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 19 [2024-11-12 17:50:47,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:47,312 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2024-11-12 17:50:47,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:50:47,312 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2024-11-12 17:50:47,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-12 17:50:47,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:47,313 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:47,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 17:50:47,314 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_27_to_27_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:47,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:47,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1353591939, now seen corresponding path program 1 times [2024-11-12 17:50:47,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515604191] [2024-11-12 17:50:47,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:47,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:47,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:47,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515604191] [2024-11-12 17:50:47,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515604191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:47,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:47,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 17:50:47,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246873034] [2024-11-12 17:50:47,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:47,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:50:47,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:47,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:50:47,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:50:47,517 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:47,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:47,597 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2024-11-12 17:50:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:50:47,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-12 17:50:47,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:47,599 INFO L225 Difference]: With dead ends: 76 [2024-11-12 17:50:47,600 INFO L226 Difference]: Without dead ends: 75 [2024-11-12 17:50:47,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:50:47,601 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 11 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:47,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 260 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:47,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-12 17:50:47,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2024-11-12 17:50:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 44 states have (on average 1.25) internal successors, (55), 52 states have internal predecessors, (55), 12 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-12 17:50:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2024-11-12 17:50:47,616 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 23 [2024-11-12 17:50:47,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:47,617 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2024-11-12 17:50:47,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2024-11-12 17:50:47,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-12 17:50:47,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:47,619 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:47,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 17:50:47,620 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_26_to_27_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:47,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:47,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1741627569, now seen corresponding path program 1 times [2024-11-12 17:50:47,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:47,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998978432] [2024-11-12 17:50:47,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:47,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:47,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:50:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:47,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 17:50:47,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:47,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998978432] [2024-11-12 17:50:47,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998978432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:47,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:47,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 17:50:47,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382580881] [2024-11-12 17:50:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:47,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:50:47,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:47,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:50:47,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:50:47,803 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 7 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:50:47,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:47,959 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2024-11-12 17:50:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:50:47,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-11-12 17:50:47,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:47,961 INFO L225 Difference]: With dead ends: 108 [2024-11-12 17:50:47,961 INFO L226 Difference]: Without dead ends: 106 [2024-11-12 17:50:47,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:50:47,962 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 50 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:47,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 234 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:47,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-12 17:50:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 80. [2024-11-12 17:50:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 59 states have internal predecessors, (63), 13 states have call successors, (13), 9 states have call predecessors, (13), 9 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-12 17:50:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2024-11-12 17:50:47,983 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 28 [2024-11-12 17:50:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:47,983 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2024-11-12 17:50:47,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:50:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2024-11-12 17:50:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-12 17:50:47,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:47,984 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:47,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 17:50:47,984 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_25_to_26_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:47,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:47,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1236543506, now seen corresponding path program 1 times [2024-11-12 17:50:47,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:47,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598430468] [2024-11-12 17:50:47,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:47,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:48,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 17:50:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:48,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 17:50:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:48,152 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 17:50:48,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:48,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598430468] [2024-11-12 17:50:48,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598430468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:48,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636093352] [2024-11-12 17:50:48,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:48,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:48,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:48,156 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) [2024-11-12 17:50:48,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:50:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:48,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-12 17:50:48,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:48,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:50:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 17:50:48,406 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:50:48,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636093352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:48,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:50:48,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-12 17:50:48,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602315743] [2024-11-12 17:50:48,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:48,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:50:48,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:48,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:50:48,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:50:48,409 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:50:48,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:48,499 INFO L93 Difference]: Finished difference Result 157 states and 188 transitions. [2024-11-12 17:50:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:50:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-12 17:50:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:48,500 INFO L225 Difference]: With dead ends: 157 [2024-11-12 17:50:48,500 INFO L226 Difference]: Without dead ends: 78 [2024-11-12 17:50:48,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:50:48,501 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 21 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:48,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 138 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:48,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-12 17:50:48,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-12 17:50:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.22) internal successors, (61), 57 states have internal predecessors, (61), 13 states have call successors, (13), 9 states have call predecessors, (13), 8 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-12 17:50:48,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2024-11-12 17:50:48,509 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 29 [2024-11-12 17:50:48,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:48,509 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2024-11-12 17:50:48,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:50:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2024-11-12 17:50:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-12 17:50:48,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:48,511 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:48,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 17:50:48,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:48,713 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_26_to_27_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:48,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:48,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1736963760, now seen corresponding path program 1 times [2024-11-12 17:50:48,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:48,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756975998] [2024-11-12 17:50:48,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:48,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:50:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:49,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:49,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:50:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:49,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-12 17:50:49,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:49,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756975998] [2024-11-12 17:50:49,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756975998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:49,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758456661] [2024-11-12 17:50:49,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:49,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:49,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:49,174 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) [2024-11-12 17:50:49,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 17:50:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:49,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-12 17:50:49,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:49,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:50:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-12 17:50:49,552 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 17:50:50,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758456661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:50,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:50,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-12 17:50:50,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397451467] [2024-11-12 17:50:50,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:50,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-12 17:50:50,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:50,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-12 17:50:50,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-11-12 17:50:50,015 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 25 states, 19 states have (on average 2.736842105263158) internal successors, (52), 22 states have internal predecessors, (52), 8 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (9), 5 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-12 17:50:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:50,306 INFO L93 Difference]: Finished difference Result 157 states and 191 transitions. [2024-11-12 17:50:50,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 17:50:50,307 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.736842105263158) internal successors, (52), 22 states have internal predecessors, (52), 8 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (9), 5 states have call predecessors, (9), 8 states have call successors, (9) Word has length 46 [2024-11-12 17:50:50,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:50,308 INFO L225 Difference]: With dead ends: 157 [2024-11-12 17:50:50,308 INFO L226 Difference]: Without dead ends: 82 [2024-11-12 17:50:50,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2024-11-12 17:50:50,309 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 46 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:50,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 428 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:50:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-12 17:50:50,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-12 17:50:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 59 states have internal predecessors, (63), 13 states have call successors, (13), 9 states have call predecessors, (13), 10 states have return successors, (17), 13 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-12 17:50:50,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2024-11-12 17:50:50,324 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 46 [2024-11-12 17:50:50,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:50,324 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2024-11-12 17:50:50,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.736842105263158) internal successors, (52), 22 states have internal predecessors, (52), 8 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (9), 5 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-12 17:50:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2024-11-12 17:50:50,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-12 17:50:50,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:50,329 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:50,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 17:50:50,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-12 17:50:50,534 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_26_to_27_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:50,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:50,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1421662528, now seen corresponding path program 2 times [2024-11-12 17:50:50,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:50,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478606933] [2024-11-12 17:50:50,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:50,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:50:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-12 17:50:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-12 17:50:50,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:50,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478606933] [2024-11-12 17:50:50,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478606933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:50,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214835588] [2024-11-12 17:50:50,918 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:50:50,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:50,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:50,920 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) [2024-11-12 17:50:50,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 17:50:51,061 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:50:51,061 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:50:51,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-12 17:50:51,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:51,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:50:51,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-12 17:50:51,279 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-12 17:50:51,279 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:50:51,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214835588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:51,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:50:51,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-12 17:50:51,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78364465] [2024-11-12 17:50:51,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:51,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:50:51,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:50:51,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:50:51,282 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-12 17:50:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:51,417 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2024-11-12 17:50:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:50:51,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 74 [2024-11-12 17:50:51,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:51,419 INFO L225 Difference]: With dead ends: 85 [2024-11-12 17:50:51,419 INFO L226 Difference]: Without dead ends: 84 [2024-11-12 17:50:51,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-12 17:50:51,420 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 58 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:51,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 227 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:51,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-12 17:50:51,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2024-11-12 17:50:51,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 58 states have internal predecessors, (62), 13 states have call successors, (13), 9 states have call predecessors, (13), 10 states have return successors, (17), 13 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-12 17:50:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2024-11-12 17:50:51,438 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 74 [2024-11-12 17:50:51,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:51,439 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2024-11-12 17:50:51,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-12 17:50:51,439 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2024-11-12 17:50:51,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-12 17:50:51,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:51,444 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:51,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 17:50:51,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:51,645 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_26_to_27_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:51,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:51,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1121865326, now seen corresponding path program 1 times [2024-11-12 17:50:51,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:51,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460810481] [2024-11-12 17:50:51,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:51,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:50:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-12 17:50:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-12 17:50:52,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:52,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460810481] [2024-11-12 17:50:52,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460810481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:52,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875320507] [2024-11-12 17:50:52,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:52,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:52,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:52,090 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) [2024-11-12 17:50:52,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 17:50:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:50:52,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:52,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-12 17:50:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-12 17:50:52,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:50:52,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875320507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:52,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:50:52,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-12 17:50:52,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170756098] [2024-11-12 17:50:52,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:52,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:50:52,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:52,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:50:52,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-12 17:50:52,407 INFO L87 Difference]: Start difference. First operand 81 states and 92 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-12 17:50:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:52,474 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2024-11-12 17:50:52,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:50:52,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 75 [2024-11-12 17:50:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:52,476 INFO L225 Difference]: With dead ends: 81 [2024-11-12 17:50:52,476 INFO L226 Difference]: Without dead ends: 80 [2024-11-12 17:50:52,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-12 17:50:52,477 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 4 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 226 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 [2024-11-12 17:50:52,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 226 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-12 17:50:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2024-11-12 17:50:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.183673469387755) internal successors, (58), 54 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 10 states have return successors, (16), 12 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-12 17:50:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2024-11-12 17:50:52,491 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 75 [2024-11-12 17:50:52,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:52,491 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2024-11-12 17:50:52,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-12 17:50:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2024-11-12 17:50:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-12 17:50:52,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:52,493 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:52,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 17:50:52,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:52,694 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_25_to_26_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:52,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash 31260946, now seen corresponding path program 1 times [2024-11-12 17:50:52,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:52,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541792375] [2024-11-12 17:50:52,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:52,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:52,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 17:50:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-12 17:50:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 17:50:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-12 17:50:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 5 proven. 99 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-12 17:50:53,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:53,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541792375] [2024-11-12 17:50:53,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541792375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:53,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106241072] [2024-11-12 17:50:53,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:53,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:53,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:53,630 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) [2024-11-12 17:50:53,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 17:50:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:53,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-12 17:50:53,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:53,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:50:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-12 17:50:54,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 5 proven. 133 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-12 17:50:55,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106241072] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:55,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:55,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 21] total 36 [2024-11-12 17:50:55,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514320748] [2024-11-12 17:50:55,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:55,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-12 17:50:55,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:55,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-12 17:50:55,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1016, Unknown=0, NotChecked=0, Total=1260 [2024-11-12 17:50:55,882 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 36 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 30 states have internal predecessors, (78), 10 states have call successors, (27), 8 states have call predecessors, (27), 10 states have return successors, (23), 8 states have call predecessors, (23), 10 states have call successors, (23) [2024-11-12 17:50:56,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:56,245 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2024-11-12 17:50:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:50:56,246 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 30 states have internal predecessors, (78), 10 states have call successors, (27), 8 states have call predecessors, (27), 10 states have return successors, (23), 8 states have call predecessors, (23), 10 states have call successors, (23) Word has length 97 [2024-11-12 17:50:56,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:56,247 INFO L225 Difference]: With dead ends: 151 [2024-11-12 17:50:56,247 INFO L226 Difference]: Without dead ends: 78 [2024-11-12 17:50:56,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 193 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=354, Invalid=1368, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 17:50:56,249 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 38 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:56,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 616 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:50:56,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-12 17:50:56,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-12 17:50:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.18) internal successors, (59), 55 states have internal predecessors, (59), 12 states have call successors, (12), 9 states have call predecessors, (12), 11 states have return successors, (17), 13 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-12 17:50:56,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2024-11-12 17:50:56,259 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 97 [2024-11-12 17:50:56,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:56,259 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2024-11-12 17:50:56,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 30 states have internal predecessors, (78), 10 states have call successors, (27), 8 states have call predecessors, (27), 10 states have return successors, (23), 8 states have call predecessors, (23), 10 states have call successors, (23) [2024-11-12 17:50:56,260 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2024-11-12 17:50:56,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-12 17:50:56,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:56,261 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:56,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 17:50:56,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-12 17:50:56,462 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_25_to_26_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:56,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:56,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1222114734, now seen corresponding path program 2 times [2024-11-12 17:50:56,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:56,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359788309] [2024-11-12 17:50:56,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:56,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:56,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 17:50:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:56,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 17:50:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-12 17:50:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 17:50:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:57,662 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 17 proven. 156 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-12 17:50:57,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:57,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359788309] [2024-11-12 17:50:57,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359788309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:57,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054789131] [2024-11-12 17:50:57,663 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:50:57,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:57,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:57,665 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) [2024-11-12 17:50:57,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 17:50:57,854 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:50:57,854 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:50:57,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 17:50:57,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:57,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:50:58,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-12 17:50:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-12 17:50:58,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:50:58,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054789131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:58,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:50:58,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 23 [2024-11-12 17:50:58,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078705522] [2024-11-12 17:50:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:58,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:50:58,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:58,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:50:58,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2024-11-12 17:50:58,068 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-12 17:50:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:58,168 INFO L93 Difference]: Finished difference Result 82 states and 97 transitions. [2024-11-12 17:50:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:50:58,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 111 [2024-11-12 17:50:58,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:58,170 INFO L225 Difference]: With dead ends: 82 [2024-11-12 17:50:58,170 INFO L226 Difference]: Without dead ends: 81 [2024-11-12 17:50:58,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=564, Unknown=0, NotChecked=0, Total=650 [2024-11-12 17:50:58,171 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 45 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:58,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 170 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:58,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-12 17:50:58,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 74. [2024-11-12 17:50:58,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 52 states have internal predecessors, (56), 11 states have call successors, (11), 9 states have call predecessors, (11), 11 states have return successors, (16), 12 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-12 17:50:58,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2024-11-12 17:50:58,183 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 111 [2024-11-12 17:50:58,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:58,184 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2024-11-12 17:50:58,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-12 17:50:58,184 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2024-11-12 17:50:58,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-12 17:50:58,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:58,185 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:58,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 17:50:58,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:58,386 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:58,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:58,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1328513609, now seen corresponding path program 1 times [2024-11-12 17:50:58,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:58,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136671786] [2024-11-12 17:50:58,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:58,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:50:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 17:50:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 17:50:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 17:50:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-12 17:50:58,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:58,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136671786] [2024-11-12 17:50:58,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136671786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:58,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:58,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 17:50:58,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844717720] [2024-11-12 17:50:58,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:58,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 17:50:58,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:58,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 17:50:58,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:50:58,643 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand has 10 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-12 17:50:58,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:58,821 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2024-11-12 17:50:58,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:50:58,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-11-12 17:50:58,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:58,822 INFO L225 Difference]: With dead ends: 82 [2024-11-12 17:50:58,822 INFO L226 Difference]: Without dead ends: 80 [2024-11-12 17:50:58,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:50:58,823 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 44 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:58,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 182 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-12 17:50:58,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-12 17:50:58,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.150943396226415) internal successors, (61), 56 states have internal predecessors, (61), 12 states have call successors, (12), 10 states have call predecessors, (12), 11 states have return successors, (17), 13 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-12 17:50:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2024-11-12 17:50:58,833 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 79 [2024-11-12 17:50:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:58,833 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2024-11-12 17:50:58,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-12 17:50:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2024-11-12 17:50:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-12 17:50:58,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:58,835 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:58,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 17:50:58,835 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:50:58,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1787656499, now seen corresponding path program 1 times [2024-11-12 17:50:58,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:58,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337889989] [2024-11-12 17:50:58,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:58,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:59,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:50:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:59,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:59,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:59,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:50:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 17:51:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 17:51:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 17:51:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 17:51:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 17:51:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 7 proven. 164 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-12 17:51:00,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:51:00,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337889989] [2024-11-12 17:51:00,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337889989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:51:00,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259343979] [2024-11-12 17:51:00,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:00,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:00,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:51:00,321 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) [2024-11-12 17:51:00,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 17:51:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:00,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-12 17:51:00,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:51:00,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:51:00,918 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 165 proven. 24 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-12 17:51:00,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:51:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 7 proven. 223 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-12 17:51:03,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259343979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:51:03,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:51:03,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 26] total 42 [2024-11-12 17:51:03,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041347143] [2024-11-12 17:51:03,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:51:03,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-12 17:51:03,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:51:03,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-12 17:51:03,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=1389, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 17:51:03,644 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand has 42 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 10 states have call successors, (35), 10 states have call predecessors, (35), 12 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-12 17:51:03,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:51:03,997 INFO L93 Difference]: Finished difference Result 156 states and 184 transitions. [2024-11-12 17:51:03,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 17:51:03,999 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 10 states have call successors, (35), 10 states have call predecessors, (35), 12 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 134 [2024-11-12 17:51:03,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:51:03,999 INFO L225 Difference]: With dead ends: 156 [2024-11-12 17:51:04,004 INFO L226 Difference]: Without dead ends: 82 [2024-11-12 17:51:04,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 275 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=458, Invalid=1704, Unknown=0, NotChecked=0, Total=2162 [2024-11-12 17:51:04,005 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:51:04,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 500 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:51:04,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-12 17:51:04,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-12 17:51:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 57 states have internal predecessors, (62), 12 states have call successors, (12), 10 states have call predecessors, (12), 12 states have return successors, (18), 14 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-12 17:51:04,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2024-11-12 17:51:04,017 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 134 [2024-11-12 17:51:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:51:04,018 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2024-11-12 17:51:04,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 10 states have call successors, (35), 10 states have call predecessors, (35), 12 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-12 17:51:04,018 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2024-11-12 17:51:04,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-12 17:51:04,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:51:04,020 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:51:04,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-12 17:51:04,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:04,224 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:51:04,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:51:04,224 INFO L85 PathProgramCache]: Analyzing trace with hash -226005423, now seen corresponding path program 2 times [2024-11-12 17:51:04,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:51:04,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698079463] [2024-11-12 17:51:04,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:04,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:51:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:04,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:51:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:04,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:05,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:05,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:05,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:05,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:05,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-12 17:51:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 17:51:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-12 17:51:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-12 17:51:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 17:51:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:06,125 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 23 proven. 235 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-12 17:51:06,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:51:06,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698079463] [2024-11-12 17:51:06,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698079463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:51:06,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513913033] [2024-11-12 17:51:06,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:51:06,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:06,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:51:06,128 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) [2024-11-12 17:51:06,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 17:51:06,380 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:51:06,381 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:51:06,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-12 17:51:06,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:51:06,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:51:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 236 proven. 35 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-12 17:51:06,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:51:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 7 proven. 326 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-12 17:51:10,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513913033] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:51:10,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:51:10,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 31] total 52 [2024-11-12 17:51:10,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586869911] [2024-11-12 17:51:10,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:51:10,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-12 17:51:10,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:51:10,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-12 17:51:10,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=466, Invalid=2186, Unknown=0, NotChecked=0, Total=2652 [2024-11-12 17:51:10,783 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand has 52 states, 42 states have (on average 2.5476190476190474) internal successors, (107), 43 states have internal predecessors, (107), 12 states have call successors, (38), 11 states have call predecessors, (38), 15 states have return successors, (34), 13 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-12 17:51:11,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:51:11,344 INFO L93 Difference]: Finished difference Result 160 states and 188 transitions. [2024-11-12 17:51:11,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 17:51:11,345 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 42 states have (on average 2.5476190476190474) internal successors, (107), 43 states have internal predecessors, (107), 12 states have call successors, (38), 11 states have call predecessors, (38), 15 states have return successors, (34), 13 states have call predecessors, (34), 12 states have call successors, (34) Word has length 148 [2024-11-12 17:51:11,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:51:11,346 INFO L225 Difference]: With dead ends: 160 [2024-11-12 17:51:11,346 INFO L226 Difference]: Without dead ends: 84 [2024-11-12 17:51:11,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 299 SyntacticMatches, 6 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1503 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=710, Invalid=2950, Unknown=0, NotChecked=0, Total=3660 [2024-11-12 17:51:11,348 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 32 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:51:11,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 753 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:51:11,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-12 17:51:11,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-12 17:51:11,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 58 states have internal predecessors, (63), 12 states have call successors, (12), 10 states have call predecessors, (12), 13 states have return successors, (19), 15 states have call predecessors, (19), 10 states have call successors, (19) [2024-11-12 17:51:11,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2024-11-12 17:51:11,357 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 148 [2024-11-12 17:51:11,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:51:11,357 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2024-11-12 17:51:11,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 42 states have (on average 2.5476190476190474) internal successors, (107), 43 states have internal predecessors, (107), 12 states have call successors, (38), 11 states have call predecessors, (38), 15 states have return successors, (34), 13 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-12 17:51:11,358 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2024-11-12 17:51:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-12 17:51:11,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:51:11,359 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:51:11,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-12 17:51:11,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-12 17:51:11,560 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:51:11,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:51:11,561 INFO L85 PathProgramCache]: Analyzing trace with hash 334815821, now seen corresponding path program 3 times [2024-11-12 17:51:11,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:51:11,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127179490] [2024-11-12 17:51:11,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:11,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:51:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:11,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:51:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 17:51:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 17:51:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 17:51:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:12,351 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-11-12 17:51:12,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:51:12,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127179490] [2024-11-12 17:51:12,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127179490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:51:12,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031315072] [2024-11-12 17:51:12,352 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:51:12,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:12,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:51:12,354 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) [2024-11-12 17:51:12,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 17:51:12,606 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-12 17:51:12,607 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:51:12,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-12 17:51:12,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:51:12,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:51:12,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-12 17:51:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-12 17:51:12,837 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:51:12,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031315072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:51:12,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:51:12,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 18 [2024-11-12 17:51:12,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026932258] [2024-11-12 17:51:12,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:51:12,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:51:12,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:51:12,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:51:12,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-12 17:51:12,840 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 17:51:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:51:12,971 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2024-11-12 17:51:12,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:51:12,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 162 [2024-11-12 17:51:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:51:12,973 INFO L225 Difference]: With dead ends: 87 [2024-11-12 17:51:12,973 INFO L226 Difference]: Without dead ends: 86 [2024-11-12 17:51:12,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-12 17:51:12,974 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 33 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:51:12,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 163 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:51:12,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-12 17:51:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2024-11-12 17:51:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 57 states have internal predecessors, (62), 12 states have call successors, (12), 10 states have call predecessors, (12), 13 states have return successors, (19), 15 states have call predecessors, (19), 10 states have call successors, (19) [2024-11-12 17:51:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2024-11-12 17:51:12,997 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 162 [2024-11-12 17:51:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:51:12,998 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2024-11-12 17:51:12,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 17:51:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2024-11-12 17:51:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-12 17:51:12,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:51:13,000 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:51:13,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-12 17:51:13,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-12 17:51:13,202 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:51:13,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:51:13,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1789355898, now seen corresponding path program 1 times [2024-11-12 17:51:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:51:13,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020945521] [2024-11-12 17:51:13,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:51:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:51:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 17:51:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 17:51:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:13,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 17:51:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2024-11-12 17:51:14,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:51:14,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020945521] [2024-11-12 17:51:14,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020945521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:51:14,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764534245] [2024-11-12 17:51:14,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:14,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:14,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:51:14,038 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) [2024-11-12 17:51:14,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 17:51:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:14,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:51:14,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:51:14,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-12 17:51:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-12 17:51:14,521 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:51:14,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764534245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:51:14,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:51:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-12 17:51:14,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489690055] [2024-11-12 17:51:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:51:14,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:51:14,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:51:14,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:51:14,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-12 17:51:14,523 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 17:51:18,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 17:51:18,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:51:18,590 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2024-11-12 17:51:18,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:51:18,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 163 [2024-11-12 17:51:18,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:51:18,591 INFO L225 Difference]: With dead ends: 83 [2024-11-12 17:51:18,591 INFO L226 Difference]: Without dead ends: 82 [2024-11-12 17:51:18,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-12 17:51:18,592 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 6 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:51:18,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 160 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-12 17:51:18,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-12 17:51:18,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2024-11-12 17:51:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 11 states have call successors, (11), 10 states have call predecessors, (11), 13 states have return successors, (18), 14 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-12 17:51:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2024-11-12 17:51:18,603 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 163 [2024-11-12 17:51:18,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:51:18,604 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2024-11-12 17:51:18,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-12 17:51:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2024-11-12 17:51:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-12 17:51:18,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:51:18,606 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:51:18,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-12 17:51:18,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:18,807 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:51:18,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:51:18,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1667661021, now seen corresponding path program 1 times [2024-11-12 17:51:18,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:51:18,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257154540] [2024-11-12 17:51:18,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:18,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:51:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:51:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 17:51:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-12 17:51:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-12 17:51:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 17:51:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-12 17:51:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 7 proven. 37 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2024-11-12 17:51:19,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:51:19,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257154540] [2024-11-12 17:51:19,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257154540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:51:19,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191730090] [2024-11-12 17:51:19,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:19,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:19,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:51:19,797 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:51:19,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-12 17:51:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:20,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-12 17:51:20,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:51:20,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:51:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 342 proven. 3 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-12 17:51:20,349 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:51:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2024-11-12 17:51:21,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191730090] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:51:21,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:51:21,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 11] total 30 [2024-11-12 17:51:21,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122763422] [2024-11-12 17:51:21,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:51:21,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-12 17:51:21,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:51:21,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-12 17:51:21,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2024-11-12 17:51:21,150 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand has 30 states, 24 states have (on average 4.041666666666667) internal successors, (97), 23 states have internal predecessors, (97), 11 states have call successors, (41), 9 states have call predecessors, (41), 7 states have return successors, (29), 8 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-12 17:51:21,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:51:21,531 INFO L93 Difference]: Finished difference Result 154 states and 178 transitions. [2024-11-12 17:51:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 17:51:21,531 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 24 states have (on average 4.041666666666667) internal successors, (97), 23 states have internal predecessors, (97), 11 states have call successors, (41), 9 states have call predecessors, (41), 7 states have return successors, (29), 8 states have call predecessors, (29), 11 states have call successors, (29) Word has length 185 [2024-11-12 17:51:21,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:51:21,532 INFO L225 Difference]: With dead ends: 154 [2024-11-12 17:51:21,532 INFO L226 Difference]: Without dead ends: 82 [2024-11-12 17:51:21,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 401 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=210, Invalid=980, Unknown=0, NotChecked=0, Total=1190 [2024-11-12 17:51:21,534 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 61 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:51:21,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 270 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:51:21,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-12 17:51:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-12 17:51:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 55 states have internal predecessors, (60), 11 states have call successors, (11), 10 states have call predecessors, (11), 15 states have return successors, (20), 16 states have call predecessors, (20), 9 states have call successors, (20) [2024-11-12 17:51:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2024-11-12 17:51:21,549 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 185 [2024-11-12 17:51:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:51:21,550 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2024-11-12 17:51:21,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 24 states have (on average 4.041666666666667) internal successors, (97), 23 states have internal predecessors, (97), 11 states have call successors, (41), 9 states have call predecessors, (41), 7 states have return successors, (29), 8 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-12 17:51:21,550 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2024-11-12 17:51:21,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-12 17:51:21,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:51:21,556 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 36, 36, 36, 36, 36, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:51:21,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-12 17:51:21,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:21,757 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:51:21,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:51:21,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1051008833, now seen corresponding path program 2 times [2024-11-12 17:51:21,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:51:21,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561442359] [2024-11-12 17:51:21,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:21,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:51:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:51:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:22,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:23,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-12 17:51:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-12 17:51:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-12 17:51:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-12 17:51:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-12 17:51:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5584 backedges. 19 proven. 125 refuted. 0 times theorem prover too weak. 5440 trivial. 0 not checked. [2024-11-12 17:51:24,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:51:24,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561442359] [2024-11-12 17:51:24,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561442359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:51:24,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664160013] [2024-11-12 17:51:24,718 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:51:24,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:24,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:51:24,720 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:51:24,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-12 17:51:25,169 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:51:25,169 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:51:25,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 17:51:25,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:51:25,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 17:51:25,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-12 17:51:25,624 INFO L134 CoverageAnalysis]: Checked inductivity of 5584 backedges. 2892 proven. 0 refuted. 0 times theorem prover too weak. 2692 trivial. 0 not checked. [2024-11-12 17:51:25,624 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:51:25,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664160013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:51:25,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:51:25,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20] total 25 [2024-11-12 17:51:25,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162791105] [2024-11-12 17:51:25,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:51:25,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:51:25,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:51:25,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:51:25,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2024-11-12 17:51:25,626 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 17:51:25,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:51:25,721 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2024-11-12 17:51:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:51:25,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 405 [2024-11-12 17:51:25,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:51:25,723 INFO L225 Difference]: With dead ends: 83 [2024-11-12 17:51:25,723 INFO L226 Difference]: Without dead ends: 82 [2024-11-12 17:51:25,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 516 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2024-11-12 17:51:25,725 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 17 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:51:25,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 161 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:51:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-12 17:51:25,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2024-11-12 17:51:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 54 states have (on average 1.0925925925925926) internal successors, (59), 54 states have internal predecessors, (59), 11 states have call successors, (11), 10 states have call predecessors, (11), 15 states have return successors, (20), 16 states have call predecessors, (20), 9 states have call successors, (20) [2024-11-12 17:51:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2024-11-12 17:51:25,737 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 405 [2024-11-12 17:51:25,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:51:25,737 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2024-11-12 17:51:25,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 17:51:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2024-11-12 17:51:25,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-11-12 17:51:25,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:51:25,742 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 36, 36, 36, 36, 36, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 17:51:25,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-12 17:51:25,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-12 17:51:25,942 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_23_to_24_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 17:51:25,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:51:25,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1778464448, now seen corresponding path program 1 times [2024-11-12 17:51:25,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:51:25,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523765294] [2024-11-12 17:51:25,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:25,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:51:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:26,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:51:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:26,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:27,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-12 17:51:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-12 17:51:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-12 17:51:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:51:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 17:51:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 17:51:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-12 17:51:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-12 17:51:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 5585 backedges. 19 proven. 125 refuted. 0 times theorem prover too weak. 5441 trivial. 0 not checked. [2024-11-12 17:51:28,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:51:28,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523765294] [2024-11-12 17:51:28,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523765294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:51:28,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328357961] [2024-11-12 17:51:28,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:51:28,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:51:28,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:51:28,633 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:51:28,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-12 17:51:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:51:29,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:51:29,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:51:29,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-12 17:51:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5585 backedges. 2892 proven. 0 refuted. 0 times theorem prover too weak. 2693 trivial. 0 not checked. [2024-11-12 17:51:29,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:51:29,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328357961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:51:29,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:51:29,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 25 [2024-11-12 17:51:29,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862486877] [2024-11-12 17:51:29,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:51:29,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:51:29,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:51:29,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:51:29,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2024-11-12 17:51:29,481 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 17:51:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:51:29,575 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2024-11-12 17:51:29,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:51:29,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 406 [2024-11-12 17:51:29,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:51:29,579 INFO L225 Difference]: With dead ends: 81 [2024-11-12 17:51:29,579 INFO L226 Difference]: Without dead ends: 0 [2024-11-12 17:51:29,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 516 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:51:29,580 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 4 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:51:29,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 152 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:51:29,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-12 17:51:29,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-12 17:51:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:51:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 17:51:29,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 406 [2024-11-12 17:51:29,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:51:29,583 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 17:51:29,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 17:51:29,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-12 17:51:29,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-12 17:51:29,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-12 17:51:29,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-12 17:51:29,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_25_to_26_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-12 17:51:29,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_25_to_26_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-12 17:51:29,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_27_to_27_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-12 17:51:29,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_27_to_27_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-12 17:51:29,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_26_to_27_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-12 17:51:29,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_26_to_27_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-12 17:51:29,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-12 17:51:29,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_23_to_24_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-12 17:51:29,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-12 17:51:29,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-12 17:51:29,792 INFO L421 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:51:29,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.