./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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_nla-digbench/recursified_mannadiv.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 305ef194ca8c72f4da0a6deb18ed40b72305718d65c18a21aa3fcb3830c499e5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:42:25,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:42:25,634 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:42:25,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:42:25,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:42:25,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:42:25,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:42:25,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:42:25,670 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:42:25,671 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:42:25,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:42:25,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:42:25,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:42:25,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:42:25,675 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:42:25,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:42:25,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:42:25,676 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:42:25,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:42:25,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:42:25,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:42:25,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:42:25,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:42:25,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:42:25,681 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:42:25,682 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:42:25,682 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:42:25,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:42:25,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:42:25,682 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:42:25,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:42:25,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:42:25,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:42:25,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:42:25,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:25,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:42:25,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:42:25,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:42:25,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:42:25,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:42:25,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:42:25,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:42:25,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:42:25,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:42:25,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 305ef194ca8c72f4da0a6deb18ed40b72305718d65c18a21aa3fcb3830c499e5 [2024-11-10 19:42:25,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:42:25,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:42:25,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:42:25,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:42:25,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:42:25,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c [2024-11-10 19:42:27,459 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:42:27,652 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:42:27,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c [2024-11-10 19:42:27,661 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eda68cae/2b40c54d49ae4d4cb09173cd3606543a/FLAGb5a127732 [2024-11-10 19:42:27,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eda68cae/2b40c54d49ae4d4cb09173cd3606543a [2024-11-10 19:42:27,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:42:27,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:42:27,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:27,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:42:27,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:42:27,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:27,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35726593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27, skipping insertion in model container [2024-11-10 19:42:27,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:27,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:42:27,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:27,920 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:42:27,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:27,973 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:42:27,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27 WrapperNode [2024-11-10 19:42:27,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:27,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:27,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:42:27,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:42:27,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:27,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,020 INFO L138 Inliner]: procedures = 16, calls = 58, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-10 19:42:28,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:28,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:42:28,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:42:28,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:42:28,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,036 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,059 INFO L175 MemorySlicer]: Split 31 memory accesses to 6 slices as follows [2, 5, 5, 7, 5, 7]. 23 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 10 writes are split as follows [0, 2, 1, 3, 1, 3]. [2024-11-10 19:42:28,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:42:28,072 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:42:28,072 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:42:28,072 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:42:28,073 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (1/1) ... [2024-11-10 19:42:28,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:28,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:28,105 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) [2024-11-10 19:42:28,107 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 [2024-11-10 19:42:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:42:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 19:42:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 19:42:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:42:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 19:42:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 19:42:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 19:42:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 19:42:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 19:42:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 19:42:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 19:42:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 19:42:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 19:42:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 19:42:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 19:42:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 19:42:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_42_0 [2024-11-10 19:42:28,148 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_42_0 [2024-11-10 19:42:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:42:28,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:42:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 19:42:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 19:42:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 19:42:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 19:42:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 19:42:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 19:42:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:42:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:42:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 19:42:28,241 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:42:28,243 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:42:28,496 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L86: call ULTIMATE.dealloc(main_~#x1~0#1.base, main_~#x1~0#1.offset);havoc main_~#x1~0#1.base, main_~#x1~0#1.offset;call ULTIMATE.dealloc(main_~#x2~0#1.base, main_~#x2~0#1.offset);havoc main_~#x2~0#1.base, main_~#x2~0#1.offset;call ULTIMATE.dealloc(main_~#y1~0#1.base, main_~#y1~0#1.offset);havoc main_~#y1~0#1.base, main_~#y1~0#1.offset;call ULTIMATE.dealloc(main_~#y2~0#1.base, main_~#y2~0#1.offset);havoc main_~#y2~0#1.base, main_~#y2~0#1.offset;call ULTIMATE.dealloc(main_~#y3~0#1.base, main_~#y3~0#1.offset);havoc main_~#y3~0#1.base, main_~#y3~0#1.offset; [2024-11-10 19:42:28,531 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-10 19:42:28,532 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:42:28,549 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:42:28,549 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:42:28,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:28 BoogieIcfgContainer [2024-11-10 19:42:28,550 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:42:28,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:42:28,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:42:28,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:42:28,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:42:27" (1/3) ... [2024-11-10 19:42:28,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717e0573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:28, skipping insertion in model container [2024-11-10 19:42:28,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:27" (2/3) ... [2024-11-10 19:42:28,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717e0573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:28, skipping insertion in model container [2024-11-10 19:42:28,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:28" (3/3) ... [2024-11-10 19:42:28,563 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_mannadiv.c [2024-11-10 19:42:28,577 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:42:28,577 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-10 19:42:28,633 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:42:28,639 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;@7e7a81b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:42:28,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-10 19:42:28,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 73 states have internal predecessors, (77), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:42:28,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-10 19:42:28,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:28,650 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:28,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_31_to_42_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_31_to_42_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_31_to_42_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 19:42:28,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:28,655 INFO L85 PathProgramCache]: Analyzing trace with hash 609444861, now seen corresponding path program 1 times [2024-11-10 19:42:28,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:28,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123134823] [2024-11-10 19:42:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:28,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:28,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:42:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:28,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:42:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:28,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:42:28,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:28,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123134823] [2024-11-10 19:42:28,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123134823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:28,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:28,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:42:28,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139524112] [2024-11-10 19:42:28,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:28,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:42:28,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:42:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:42:28,904 INFO L87 Difference]: Start difference. First operand has 82 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 73 states have internal predecessors, (77), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:42:28,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:28,926 INFO L93 Difference]: Finished difference Result 160 states and 179 transitions. [2024-11-10 19:42:28,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:42:28,927 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-11-10 19:42:28,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:28,933 INFO L225 Difference]: With dead ends: 160 [2024-11-10 19:42:28,933 INFO L226 Difference]: Without dead ends: 74 [2024-11-10 19:42:28,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:42:28,940 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:28,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:42:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-10 19:42:28,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-10 19:42:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 66 states have internal predecessors, (67), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 19:42:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2024-11-10 19:42:28,979 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 18 [2024-11-10 19:42:28,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:28,980 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2024-11-10 19:42:28,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:42:28,981 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2024-11-10 19:42:28,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-10 19:42:28,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:28,982 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:28,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:42:28,982 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_31_to_42_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_31_to_42_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_31_to_42_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 19:42:28,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:28,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1846696571, now seen corresponding path program 1 times [2024-11-10 19:42:28,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:28,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466757919] [2024-11-10 19:42:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:28,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:29,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576294948] [2024-11-10 19:42:29,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:29,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:29,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:29,060 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) [2024-11-10 19:42:29,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 19:42:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:29,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 19:42:29,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:29,308 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 11 treesize of output 7 [2024-11-10 19:42:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:42:29,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:29,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:29,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466757919] [2024-11-10 19:42:29,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:42:29,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576294948] [2024-11-10 19:42:29,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576294948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:29,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:29,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 19:42:29,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506089850] [2024-11-10 19:42:29,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:29,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:42:29,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:29,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:42:29,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:42:29,375 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:42:29,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:29,554 INFO L93 Difference]: Finished difference Result 121 states and 130 transitions. [2024-11-10 19:42:29,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:42:29,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-10 19:42:29,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:29,560 INFO L225 Difference]: With dead ends: 121 [2024-11-10 19:42:29,560 INFO L226 Difference]: Without dead ends: 119 [2024-11-10 19:42:29,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:42:29,564 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 89 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:29,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 308 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:42:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-10 19:42:29,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 103. [2024-11-10 19:42:29,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 92 states have internal predecessors, (104), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-10 19:42:29,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2024-11-10 19:42:29,593 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 18 [2024-11-10 19:42:29,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:29,594 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2024-11-10 19:42:29,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:42:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2024-11-10 19:42:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-10 19:42:29,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:29,595 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:29,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:29,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:29,796 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_31_to_42_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_31_to_42_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_31_to_42_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 19:42:29,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:29,797 INFO L85 PathProgramCache]: Analyzing trace with hash 701467058, now seen corresponding path program 1 times [2024-11-10 19:42:29,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:29,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374189393] [2024-11-10 19:42:29,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:29,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:30,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:42:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:30,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:42:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:42:30,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:30,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374189393] [2024-11-10 19:42:30,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374189393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:30,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:30,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:30,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892729857] [2024-11-10 19:42:30,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:30,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:30,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:30,177 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:42:30,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:30,457 INFO L93 Difference]: Finished difference Result 179 states and 218 transitions. [2024-11-10 19:42:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:42:30,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-10 19:42:30,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:30,460 INFO L225 Difference]: With dead ends: 179 [2024-11-10 19:42:30,462 INFO L226 Difference]: Without dead ends: 178 [2024-11-10 19:42:30,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:30,465 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 93 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:30,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 350 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:42:30,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-10 19:42:30,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 136. [2024-11-10 19:42:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 99 states have (on average 1.4343434343434343) internal successors, (142), 121 states have internal predecessors, (142), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (15), 9 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-10 19:42:30,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 167 transitions. [2024-11-10 19:42:30,493 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 167 transitions. Word has length 21 [2024-11-10 19:42:30,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:30,493 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 167 transitions. [2024-11-10 19:42:30,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:42:30,493 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 167 transitions. [2024-11-10 19:42:30,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-10 19:42:30,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:30,494 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:30,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 19:42:30,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_31_to_42_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_31_to_42_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_31_to_42_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 19:42:30,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:30,495 INFO L85 PathProgramCache]: Analyzing trace with hash 270642328, now seen corresponding path program 1 times [2024-11-10 19:42:30,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:30,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479291774] [2024-11-10 19:42:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:30,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:30,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:42:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:30,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:42:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:42:30,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:30,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479291774] [2024-11-10 19:42:30,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479291774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:30,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:30,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 19:42:30,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803635981] [2024-11-10 19:42:30,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:30,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:42:30,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:30,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:42:30,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:42:30,825 INFO L87 Difference]: Start difference. First operand 136 states and 167 transitions. Second operand has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:42:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:31,308 INFO L93 Difference]: Finished difference Result 178 states and 216 transitions. [2024-11-10 19:42:31,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:42:31,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-10 19:42:31,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:31,311 INFO L225 Difference]: With dead ends: 178 [2024-11-10 19:42:31,311 INFO L226 Difference]: Without dead ends: 177 [2024-11-10 19:42:31,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:42:31,312 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 90 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:31,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 351 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:42:31,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-10 19:42:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 136. [2024-11-10 19:42:31,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 99 states have (on average 1.4141414141414141) internal successors, (140), 121 states have internal predecessors, (140), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (15), 9 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-10 19:42:31,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2024-11-10 19:42:31,336 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 22 [2024-11-10 19:42:31,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:31,336 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2024-11-10 19:42:31,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:42:31,341 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2024-11-10 19:42:31,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-10 19:42:31,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:31,341 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:31,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 19:42:31,342 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_31_to_42_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_31_to_42_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_31_to_42_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 19:42:31,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1905727562, now seen corresponding path program 1 times [2024-11-10 19:42:31,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:31,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422964696] [2024-11-10 19:42:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:31,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat