./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_loop-simple/recursified_nested_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_4.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 45898d4df949634911027a72c0e1c79e1edaab63547cca5c16238cef1218e556 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 23:07:14,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 23:07:14,630 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 23:07:14,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 23:07:14,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 23:07:14,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 23:07:14,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 23:07:14,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 23:07:14,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 23:07:14,649 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 23:07:14,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 23:07:14,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 23:07:14,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 23:07:14,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 23:07:14,650 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 23:07:14,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 23:07:14,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 23:07:14,651 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 23:07:14,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 23:07:14,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 23:07:14,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 23:07:14,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 23:07:14,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 23:07:14,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 23:07:14,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 23:07:14,656 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 23:07:14,657 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 23:07:14,657 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 23:07:14,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 23:07:14,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 23:07:14,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 23:07:14,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 23:07:14,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 23:07:14,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 23:07:14,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:07:14,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 23:07:14,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 23:07:14,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 23:07:14,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 23:07:14,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 23:07:14,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 23:07:14,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 23:07:14,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 23:07:14,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 23:07:14,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45898d4df949634911027a72c0e1c79e1edaab63547cca5c16238cef1218e556 [2024-11-22 23:07:14,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 23:07:14,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 23:07:14,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 23:07:14,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 23:07:14,863 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 23:07:14,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-simple/recursified_nested_4.c [2024-11-22 23:07:16,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 23:07:16,358 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 23:07:16,359 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_4.c [2024-11-22 23:07:16,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff36c9cce/3bbbbd9fd59a4ef6b4060afdb56aa9fa/FLAGf14cc9128 [2024-11-22 23:07:16,381 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff36c9cce/3bbbbd9fd59a4ef6b4060afdb56aa9fa [2024-11-22 23:07:16,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 23:07:16,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 23:07:16,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 23:07:16,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 23:07:16,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 23:07:16,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a1148f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16, skipping insertion in model container [2024-11-22 23:07:16,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 23:07:16,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:07:16,573 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 23:07:16,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:07:16,606 INFO L204 MainTranslator]: Completed translation [2024-11-22 23:07:16,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16 WrapperNode [2024-11-22 23:07:16,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 23:07:16,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 23:07:16,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 23:07:16,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 23:07:16,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,637 INFO L138 Inliner]: procedures = 15, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-22 23:07:16,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 23:07:16,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 23:07:16,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 23:07:16,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 23:07:16,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,670 INFO L175 MemorySlicer]: Split 26 memory accesses to 5 slices as follows [2, 6, 6, 6, 6]. 23 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 1, 1, 1, 1]. The 8 writes are split as follows [0, 2, 2, 2, 2]. [2024-11-22 23:07:16,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 23:07:16,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 23:07:16,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 23:07:16,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 23:07:16,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (1/1) ... [2024-11-22 23:07:16,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:07:16,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:07:16,717 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) [2024-11-22 23:07:16,719 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 [2024-11-22 23:07:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 23:07:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 23:07:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 23:07:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 23:07:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 23:07:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 23:07:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 23:07:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 23:07:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 23:07:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 23:07:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 23:07:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 23:07:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_24_to_25_0 [2024-11-22 23:07:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_24_to_25_0 [2024-11-22 23:07:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_23_to_24_0 [2024-11-22 23:07:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_23_to_24_0 [2024-11-22 23:07:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_22_to_23_0 [2024-11-22 23:07:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_22_to_23_0 [2024-11-22 23:07:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_25_to_25_0 [2024-11-22 23:07:16,754 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_25_to_25_0 [2024-11-22 23:07:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 23:07:16,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 23:07:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 23:07:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 23:07:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 23:07:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 23:07:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 23:07:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 23:07:16,820 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 23:07:16,822 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 23:07:16,971 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-22 23:07:16,972 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 23:07:16,981 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 23:07:16,982 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 23:07:16,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:16 BoogieIcfgContainer [2024-11-22 23:07:16,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 23:07:16,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 23:07:16,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 23:07:16,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 23:07:16,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:07:16" (1/3) ... [2024-11-22 23:07:16,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c028dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:07:16, skipping insertion in model container [2024-11-22 23:07:16,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:16" (2/3) ... [2024-11-22 23:07:16,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c028dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:07:16, skipping insertion in model container [2024-11-22 23:07:16,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:16" (3/3) ... [2024-11-22 23:07:16,988 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_nested_4.c [2024-11-22 23:07:17,000 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 23:07:17,000 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-22 23:07:17,044 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 23:07:17,052 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;@6592184d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 23:07:17,052 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-22 23:07:17,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 48 states have internal predecessors, (52), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 23:07:17,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-22 23:07:17,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:17,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:17,063 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-22 23:07:17,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1116531470, now seen corresponding path program 1 times [2024-11-22 23:07:17,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:17,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44547783] [2024-11-22 23:07:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:07:17,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:17,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44547783] [2024-11-22 23:07:17,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44547783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:17,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:17,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 23:07:17,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799346044] [2024-11-22 23:07:17,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:17,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:07:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:17,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:07:17,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:07:17,634 INFO L87 Difference]: Start difference. First operand has 57 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 48 states have internal predecessors, (52), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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) [2024-11-22 23:07:17,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:17,804 INFO L93 Difference]: Finished difference Result 114 states and 139 transitions. [2024-11-22 23:07:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:07:17,806 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 [2024-11-22 23:07:17,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:17,812 INFO L225 Difference]: With dead ends: 114 [2024-11-22 23:07:17,814 INFO L226 Difference]: Without dead ends: 45 [2024-11-22 23:07:17,816 INFO L431 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 [2024-11-22 23:07:17,818 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 31 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:17,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 143 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:07:17,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-22 23:07:17,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-22 23:07:17,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 25 states have (on average 1.44) internal successors, (36), 36 states have internal predecessors, (36), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-22 23:07:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-11-22 23:07:17,846 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 12 [2024-11-22 23:07:17,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:17,847 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-11-22 23:07:17,847 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) [2024-11-22 23:07:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-11-22 23:07:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 23:07:17,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:17,848 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:17,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 23:07:17,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_25_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 6 more)] === [2024-11-22 23:07:17,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:17,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1877172776, now seen corresponding path program 1 times [2024-11-22 23:07:17,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:17,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596737224] [2024-11-22 23:07:17,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:17,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:18,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:07:18,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:18,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596737224] [2024-11-22 23:07:18,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596737224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:18,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:18,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:07:18,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750530074] [2024-11-22 23:07:18,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:18,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:07:18,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:18,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:07:18,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:07:18,049 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:07:18,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:18,124 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2024-11-22 23:07:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:07:18,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-22 23:07:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:18,126 INFO L225 Difference]: With dead ends: 92 [2024-11-22 23:07:18,129 INFO L226 Difference]: Without dead ends: 50 [2024-11-22 23:07:18,130 INFO L431 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 [2024-11-22 23:07:18,131 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 5 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 208 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 [2024-11-22 23:07:18,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 208 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-22 23:07:18,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2024-11-22 23:07:18,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 38 states have internal predecessors, (39), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-22 23:07:18,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2024-11-22 23:07:18,143 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 15 [2024-11-22 23:07:18,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:18,144 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2024-11-22 23:07:18,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:07:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2024-11-22 23:07:18,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 23:07:18,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:18,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:18,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 23:07:18,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_25_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 6 more)] === [2024-11-22 23:07:18,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:18,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1937186170, now seen corresponding path program 1 times [2024-11-22 23:07:18,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:18,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014364961] [2024-11-22 23:07:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:18,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:07:18,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:18,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014364961] [2024-11-22 23:07:18,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014364961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:18,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:18,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 23:07:18,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117048514] [2024-11-22 23:07:18,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:18,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 23:07:18,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:18,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 23:07:18,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 23:07:18,251 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:07:18,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:18,271 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2024-11-22 23:07:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 23:07:18,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-22 23:07:18,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:18,273 INFO L225 Difference]: With dead ends: 48 [2024-11-22 23:07:18,273 INFO L226 Difference]: Without dead ends: 47 [2024-11-22 23:07:18,274 INFO L431 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 [2024-11-22 23:07:18,278 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 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 [2024-11-22 23:07:18,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:18,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-22 23:07:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-22 23:07:18,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 37 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-22 23:07:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2024-11-22 23:07:18,286 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 16 [2024-11-22 23:07:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:18,286 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2024-11-22 23:07:18,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:07:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2024-11-22 23:07:18,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 23:07:18,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:18,287 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:18,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 23:07:18,291 INFO L396 AbstractCegarLoop]: === Iteration 4 === 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 6 more)] === [2024-11-22 23:07:18,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:18,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1871222199, now seen corresponding path program 1 times [2024-11-22 23:07:18,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:18,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963053000] [2024-11-22 23:07:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:18,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:07:18,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:18,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963053000] [2024-11-22 23:07:18,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963053000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:18,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:18,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:07:18,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598000891] [2024-11-22 23:07:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:18,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:07:18,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:18,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:07:18,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:07:18,432 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:07:18,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:18,481 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2024-11-22 23:07:18,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:07:18,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (3), 2 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 [2024-11-22 23:07:18,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:18,482 INFO L225 Difference]: With dead ends: 57 [2024-11-22 23:07:18,482 INFO L226 Difference]: Without dead ends: 53 [2024-11-22 23:07:18,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:07:18,483 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 11 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:18,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 204 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:18,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-22 23:07:18,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-22 23:07:18,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 33 states have (on average 1.303030303030303) internal successors, (43), 41 states have internal predecessors, (43), 9 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-22 23:07:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2024-11-22 23:07:18,488 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 15 [2024-11-22 23:07:18,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:18,488 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2024-11-22 23:07:18,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:07:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2024-11-22 23:07:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 23:07:18,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:18,489 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:18,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 23:07:18,490 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_25_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 6 more)] === [2024-11-22 23:07:18,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:18,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2140617374, now seen corresponding path program 1 times [2024-11-22 23:07:18,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:18,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351622046] [2024-11-22 23:07:18,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:18,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:18,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:07:18,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:18,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351622046] [2024-11-22 23:07:18,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351622046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:18,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:18,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 23:07:18,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711236367] [2024-11-22 23:07:18,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:18,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:07:18,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:18,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:07:18,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 23:07:18,645 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-22 23:07:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:18,712 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2024-11-22 23:07:18,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 23:07:18,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 20 [2024-11-22 23:07:18,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:18,714 INFO L225 Difference]: With dead ends: 59 [2024-11-22 23:07:18,714 INFO L226 Difference]: Without dead ends: 58 [2024-11-22 23:07:18,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:07:18,715 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 11 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:18,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 200 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:18,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-22 23:07:18,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2024-11-22 23:07:18,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 40 states have internal predecessors, (42), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-22 23:07:18,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2024-11-22 23:07:18,728 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 20 [2024-11-22 23:07:18,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:18,728 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2024-11-22 23:07:18,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-22 23:07:18,728 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2024-11-22 23:07:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 23:07:18,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:18,729 INFO L215 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] [2024-11-22 23:07:18,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 23:07:18,729 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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 6 more)] === [2024-11-22 23:07:18,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:18,730 INFO L85 PathProgramCache]: Analyzing trace with hash 863656053, now seen corresponding path program 1 times [2024-11-22 23:07:18,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:18,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899796666] [2024-11-22 23:07:18,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:18,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 23:07:18,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:18,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899796666] [2024-11-22 23:07:18,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899796666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:18,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:18,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:07:18,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994635908] [2024-11-22 23:07:18,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:18,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:07:18,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:18,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:07:18,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:07:18,854 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 6 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:07:18,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:18,913 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2024-11-22 23:07:18,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:07:18,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-11-22 23:07:18,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:18,914 INFO L225 Difference]: With dead ends: 72 [2024-11-22 23:07:18,914 INFO L226 Difference]: Without dead ends: 70 [2024-11-22 23:07:18,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:07:18,915 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 16 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:18,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 191 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:18,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-22 23:07:18,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 61. [2024-11-22 23:07:18,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 46 states have internal predecessors, (49), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-22 23:07:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2024-11-22 23:07:18,927 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 25 [2024-11-22 23:07:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:18,928 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2024-11-22 23:07:18,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:07:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2024-11-22 23:07:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 23:07:18,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:18,930 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:18,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 23:07:18,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === 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 6 more)] === [2024-11-22 23:07:18,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:18,930 INFO L85 PathProgramCache]: Analyzing trace with hash -520615220, now seen corresponding path program 1 times [2024-11-22 23:07:18,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:18,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282776332] [2024-11-22 23:07:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:18,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 23:07:19,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:19,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282776332] [2024-11-22 23:07:19,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282776332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:07:19,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132315656] [2024-11-22 23:07:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:19,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:19,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:07:19,074 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) [2024-11-22 23:07:19,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 23:07:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:19,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-22 23:07:19,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:07:19,192 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 [2024-11-22 23:07:19,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2024-11-22 23:07:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 23:07:19,268 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:07:19,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132315656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:19,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:07:19,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2024-11-22 23:07:19,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968567807] [2024-11-22 23:07:19,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:19,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:07:19,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:19,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:07:19,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 23:07:19,270 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 23:07:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:19,361 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2024-11-22 23:07:19,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:07:19,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2024-11-22 23:07:19,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:19,363 INFO L225 Difference]: With dead ends: 121 [2024-11-22 23:07:19,363 INFO L226 Difference]: Without dead ends: 61 [2024-11-22 23:07:19,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 23:07:19,364 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 17 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:19,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 135 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:07:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-22 23:07:19,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-22 23:07:19,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 45 states have internal predecessors, (48), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-22 23:07:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2024-11-22 23:07:19,376 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 26 [2024-11-22 23:07:19,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:19,376 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2024-11-22 23:07:19,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 23:07:19,376 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2024-11-22 23:07:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-22 23:07:19,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:19,380 INFO L215 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] [2024-11-22 23:07:19,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 23:07:19,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:19,581 INFO L396 AbstractCegarLoop]: === Iteration 8 === 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 6 more)] === [2024-11-22 23:07:19,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:19,582 INFO L85 PathProgramCache]: Analyzing trace with hash -782233795, now seen corresponding path program 1 times [2024-11-22 23:07:19,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:19,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622038986] [2024-11-22 23:07:19,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:19,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 23:07:19,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:19,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622038986] [2024-11-22 23:07:19,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622038986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:07:19,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203869858] [2024-11-22 23:07:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:19,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:19,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:07:19,868 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) [2024-11-22 23:07:19,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 23:07:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:19,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-22 23:07:19,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:07:19,975 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 [2024-11-22 23:07:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 23:07:20,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:07:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 23:07:20,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203869858] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:07:20,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:07:20,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-22 23:07:20,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724302720] [2024-11-22 23:07:20,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:07:20,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 23:07:20,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:20,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 23:07:20,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2024-11-22 23:07:20,559 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 22 states have internal predecessors, (51), 8 states have call successors, (14), 5 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-22 23:07:20,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:20,768 INFO L93 Difference]: Finished difference Result 123 states and 148 transitions. [2024-11-22 23:07:20,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 23:07:20,771 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 22 states have internal predecessors, (51), 8 states have call successors, (14), 5 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 8 states have call successors, (10) Word has length 43 [2024-11-22 23:07:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:20,772 INFO L225 Difference]: With dead ends: 123 [2024-11-22 23:07:20,772 INFO L226 Difference]: Without dead ends: 65 [2024-11-22 23:07:20,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=698, Unknown=0, NotChecked=0, Total=870 [2024-11-22 23:07:20,773 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 24 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:20,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 313 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:07:20,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-22 23:07:20,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-22 23:07:20,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 47 states have internal predecessors, (50), 10 states have call successors, (10), 7 states have call predecessors, (10), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-22 23:07:20,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2024-11-22 23:07:20,784 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 43 [2024-11-22 23:07:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:20,784 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2024-11-22 23:07:20,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 22 states have internal predecessors, (51), 8 states have call successors, (14), 5 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-22 23:07:20,784 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2024-11-22 23:07:20,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 23:07:20,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:20,787 INFO L215 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] [2024-11-22 23:07:20,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 23:07:20,991 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,SelfDestructingSolverStorable7 [2024-11-22 23:07:20,992 INFO L396 AbstractCegarLoop]: === Iteration 9 === 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 6 more)] === [2024-11-22 23:07:20,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:20,992 INFO L85 PathProgramCache]: Analyzing trace with hash 459659657, now seen corresponding path program 2 times [2024-11-22 23:07:20,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:20,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076083185] [2024-11-22 23:07:20,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:07:20,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:21,023 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:07:21,024 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:07:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-22 23:07:21,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:21,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076083185] [2024-11-22 23:07:21,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076083185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:07:21,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989524104] [2024-11-22 23:07:21,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:07:21,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:21,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:07:21,259 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) [2024-11-22 23:07:21,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 23:07:21,350 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:07:21,350 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:07:21,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-22 23:07:21,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:07:21,361 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 [2024-11-22 23:07:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 94 proven. 15 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 23:07:21,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:07:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 3 proven. 124 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-22 23:07:22,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989524104] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:07:22,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:07:22,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 21] total 38 [2024-11-22 23:07:22,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344137273] [2024-11-22 23:07:22,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:07:22,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-22 23:07:22,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:22,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-22 23:07:22,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1187, Unknown=0, NotChecked=0, Total=1406 [2024-11-22 23:07:22,977 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand has 38 states, 31 states have (on average 2.096774193548387) internal successors, (65), 31 states have internal predecessors, (65), 11 states have call successors, (18), 9 states have call predecessors, (18), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-22 23:07:23,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:23,480 INFO L93 Difference]: Finished difference Result 131 states and 161 transitions. [2024-11-22 23:07:23,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 23:07:23,481 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 31 states have (on average 2.096774193548387) internal successors, (65), 31 states have internal predecessors, (65), 11 states have call successors, (18), 9 states have call predecessors, (18), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 71 [2024-11-22 23:07:23,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:23,481 INFO L225 Difference]: With dead ends: 131 [2024-11-22 23:07:23,482 INFO L226 Difference]: Without dead ends: 69 [2024-11-22 23:07:23,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=373, Invalid=2279, Unknown=0, NotChecked=0, Total=2652 [2024-11-22 23:07:23,483 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 45 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:23,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 496 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:07:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-22 23:07:23,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2024-11-22 23:07:23,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 47 states have internal predecessors, (50), 10 states have call successors, (10), 7 states have call predecessors, (10), 9 states have return successors, (14), 11 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-22 23:07:23,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2024-11-22 23:07:23,506 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 71 [2024-11-22 23:07:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:23,507 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2024-11-22 23:07:23,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 31 states have (on average 2.096774193548387) internal successors, (65), 31 states have internal predecessors, (65), 11 states have call successors, (18), 9 states have call predecessors, (18), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-22 23:07:23,507 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2024-11-22 23:07:23,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 23:07:23,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:23,507 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:23,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 23:07:23,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:23,708 INFO L396 AbstractCegarLoop]: === Iteration 10 === 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 6 more)] === [2024-11-22 23:07:23,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:23,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1247556614, now seen corresponding path program 1 times [2024-11-22 23:07:23,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:23,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768176784] [2024-11-22 23:07:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:23,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:23,774 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-22 23:07:23,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:23,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768176784] [2024-11-22 23:07:23,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768176784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:23,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:23,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:07:23,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127078172] [2024-11-22 23:07:23,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:23,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:07:23,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:23,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:07:23,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:07:23,775 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 23:07:23,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:23,796 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2024-11-22 23:07:23,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:07:23,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 86 [2024-11-22 23:07:23,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:23,797 INFO L225 Difference]: With dead ends: 66 [2024-11-22 23:07:23,797 INFO L226 Difference]: Without dead ends: 65 [2024-11-22 23:07:23,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:07:23,798 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:23,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 150 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:23,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-22 23:07:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2024-11-22 23:07:23,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 43 states have internal predecessors, (46), 9 states have call successors, (9), 7 states have call predecessors, (9), 9 states have return successors, (13), 10 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-22 23:07:23,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2024-11-22 23:07:23,803 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 86 [2024-11-22 23:07:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:23,803 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2024-11-22 23:07:23,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 23:07:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2024-11-22 23:07:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 23:07:23,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:23,804 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 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] [2024-11-22 23:07:23,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 23:07:23,804 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-22 23:07:23,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:23,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1666159021, now seen corresponding path program 1 times [2024-11-22 23:07:23,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:23,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185341501] [2024-11-22 23:07:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:23,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-22 23:07:23,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:23,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185341501] [2024-11-22 23:07:23,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185341501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:23,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:23,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 23:07:23,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923217063] [2024-11-22 23:07:23,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:23,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:07:23,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:23,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:07:23,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:07:23,900 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 6 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 23:07:23,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:23,931 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2024-11-22 23:07:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:07:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2024-11-22 23:07:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:23,932 INFO L225 Difference]: With dead ends: 69 [2024-11-22 23:07:23,932 INFO L226 Difference]: Without dead ends: 67 [2024-11-22 23:07:23,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:07:23,933 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 7 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:23,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 194 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:23,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-22 23:07:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-22 23:07:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 47 states have internal predecessors, (51), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (14), 11 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-22 23:07:23,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2024-11-22 23:07:23,937 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 66 [2024-11-22 23:07:23,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:23,938 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2024-11-22 23:07:23,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 23:07:23,938 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2024-11-22 23:07:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 23:07:23,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:23,939 INFO L215 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] [2024-11-22 23:07:23,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 23:07:23,939 INFO L396 AbstractCegarLoop]: === Iteration 12 === 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 6 more)] === [2024-11-22 23:07:23,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:23,939 INFO L85 PathProgramCache]: Analyzing trace with hash -2011570724, now seen corresponding path program 1 times [2024-11-22 23:07:23,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:23,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354841882] [2024-11-22 23:07:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:23,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-11-22 23:07:24,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:24,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354841882] [2024-11-22 23:07:24,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354841882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:07:24,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496320177] [2024-11-22 23:07:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:24,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:24,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:07:24,425 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) [2024-11-22 23:07:24,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 23:07:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:24,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-22 23:07:24,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:07:24,570 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 [2024-11-22 23:07:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 172 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-22 23:07:24,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:07:25,237 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-22 23:07:25,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496320177] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:07:25,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:07:25,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 26 [2024-11-22 23:07:25,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615901208] [2024-11-22 23:07:25,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:07:25,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 23:07:25,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:25,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 23:07:25,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2024-11-22 23:07:25,240 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand has 26 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 11 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (16), 8 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-22 23:07:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:25,653 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2024-11-22 23:07:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 23:07:25,653 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 11 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (16), 8 states have call predecessors, (16), 10 states have call successors, (16) Word has length 108 [2024-11-22 23:07:25,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:25,654 INFO L225 Difference]: With dead ends: 132 [2024-11-22 23:07:25,654 INFO L226 Difference]: Without dead ends: 71 [2024-11-22 23:07:25,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=208, Invalid=1352, Unknown=0, NotChecked=0, Total=1560 [2024-11-22 23:07:25,655 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:25,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 239 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:07:25,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-22 23:07:25,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2024-11-22 23:07:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.1333333333333333) internal successors, (51), 47 states have internal predecessors, (51), 10 states have call successors, (10), 8 states have call predecessors, (10), 10 states have return successors, (15), 12 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-22 23:07:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2024-11-22 23:07:25,661 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 108 [2024-11-22 23:07:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:25,662 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2024-11-22 23:07:25,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 11 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (16), 8 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-22 23:07:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2024-11-22 23:07:25,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-22 23:07:25,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:25,663 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:25,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 23:07:25,864 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 [2024-11-22 23:07:25,864 INFO L396 AbstractCegarLoop]: === Iteration 13 === 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 6 more)] === [2024-11-22 23:07:25,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:25,864 INFO L85 PathProgramCache]: Analyzing trace with hash -728849238, now seen corresponding path program 1 times [2024-11-22 23:07:25,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:25,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236739937] [2024-11-22 23:07:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:25,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1211 trivial. 0 not checked. [2024-11-22 23:07:25,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:25,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236739937] [2024-11-22 23:07:25,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236739937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:25,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:07:25,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:07:25,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530536213] [2024-11-22 23:07:25,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:25,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:07:25,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:25,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:07:25,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:07:25,987 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 23:07:26,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:26,010 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2024-11-22 23:07:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:07:26,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 191 [2024-11-22 23:07:26,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:26,011 INFO L225 Difference]: With dead ends: 68 [2024-11-22 23:07:26,011 INFO L226 Difference]: Without dead ends: 67 [2024-11-22 23:07:26,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:07:26,012 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:26,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 142 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-22 23:07:26,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2024-11-22 23:07:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 9 states have call successors, (9), 8 states have call predecessors, (9), 10 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-22 23:07:26,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2024-11-22 23:07:26,017 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 191 [2024-11-22 23:07:26,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:26,018 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2024-11-22 23:07:26,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 23:07:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2024-11-22 23:07:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-22 23:07:26,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:26,020 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:26,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 23:07:26,020 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-22 23:07:26,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1579780455, now seen corresponding path program 1 times [2024-11-22 23:07:26,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:26,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129641968] [2024-11-22 23:07:26,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:26,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 1217 trivial. 0 not checked. [2024-11-22 23:07:26,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:26,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129641968] [2024-11-22 23:07:26,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129641968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:07:26,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282237882] [2024-11-22 23:07:26,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:26,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:26,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:07:26,476 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) [2024-11-22 23:07:26,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 23:07:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:26,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-22 23:07:26,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:07:26,666 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 [2024-11-22 23:07:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 467 proven. 24 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2024-11-22 23:07:26,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:07:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 9 proven. 531 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2024-11-22 23:07:29,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282237882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:07:29,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:07:29,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 26] total 45 [2024-11-22 23:07:29,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295071058] [2024-11-22 23:07:29,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:07:29,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-22 23:07:29,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:29,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-22 23:07:29,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1677, Unknown=0, NotChecked=0, Total=1980 [2024-11-22 23:07:29,741 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 45 states, 36 states have (on average 2.6666666666666665) internal successors, (96), 38 states have internal predecessors, (96), 12 states have call successors, (27), 9 states have call predecessors, (27), 14 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2024-11-22 23:07:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:30,317 INFO L93 Difference]: Finished difference Result 124 states and 146 transitions. [2024-11-22 23:07:30,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 23:07:30,317 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 36 states have (on average 2.6666666666666665) internal successors, (96), 38 states have internal predecessors, (96), 12 states have call successors, (27), 9 states have call predecessors, (27), 14 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) Word has length 213 [2024-11-22 23:07:30,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:30,319 INFO L225 Difference]: With dead ends: 124 [2024-11-22 23:07:30,319 INFO L226 Difference]: Without dead ends: 67 [2024-11-22 23:07:30,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=560, Invalid=3100, Unknown=0, NotChecked=0, Total=3660 [2024-11-22 23:07:30,320 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 46 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:30,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 200 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:07:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-22 23:07:30,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-22 23:07:30,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 9 states have call successors, (9), 8 states have call predecessors, (9), 12 states have return successors, (16), 13 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-22 23:07:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2024-11-22 23:07:30,330 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 213 [2024-11-22 23:07:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:30,331 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2024-11-22 23:07:30,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 36 states have (on average 2.6666666666666665) internal successors, (96), 38 states have internal predecessors, (96), 12 states have call successors, (27), 9 states have call predecessors, (27), 14 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2024-11-22 23:07:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2024-11-22 23:07:30,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-22 23:07:30,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:30,335 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 40, 40, 40, 40, 40, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:30,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 23:07:30,535 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,SelfDestructingSolverStorable13 [2024-11-22 23:07:30,536 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-22 23:07:30,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:30,536 INFO L85 PathProgramCache]: Analyzing trace with hash -994093881, now seen corresponding path program 2 times [2024-11-22 23:07:30,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:30,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316641076] [2024-11-22 23:07:30,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:07:30,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:30,614 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:07:30,614 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:07:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 7351 backedges. 10 proven. 197 refuted. 0 times theorem prover too weak. 7144 trivial. 0 not checked. [2024-11-22 23:07:32,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:32,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316641076] [2024-11-22 23:07:32,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316641076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:07:32,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433851757] [2024-11-22 23:07:32,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:07:32,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:32,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:07:32,062 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) [2024-11-22 23:07:32,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 23:07:32,386 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:07:32,386 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:07:32,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 23:07:32,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:07:32,428 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 [2024-11-22 23:07:32,915 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 [2024-11-22 23:07:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 7351 backedges. 3789 proven. 0 refuted. 0 times theorem prover too weak. 3562 trivial. 0 not checked. [2024-11-22 23:07:32,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:07:32,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433851757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:32,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:07:32,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 18 [2024-11-22 23:07:32,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255918298] [2024-11-22 23:07:32,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:32,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:07:32,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:32,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:07:32,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-22 23:07:32,932 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 23:07:33,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:33,012 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2024-11-22 23:07:33,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 23:07:33,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 459 [2024-11-22 23:07:33,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:33,014 INFO L225 Difference]: With dead ends: 68 [2024-11-22 23:07:33,014 INFO L226 Difference]: Without dead ends: 67 [2024-11-22 23:07:33,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 459 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2024-11-22 23:07:33,015 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 16 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 165 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 [2024-11-22 23:07:33,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 165 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:07:33,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-22 23:07:33,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2024-11-22 23:07:33,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 states have internal predecessors, (48), 9 states have call successors, (9), 8 states have call predecessors, (9), 12 states have return successors, (16), 13 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-22 23:07:33,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2024-11-22 23:07:33,021 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 459 [2024-11-22 23:07:33,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:33,021 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2024-11-22 23:07:33,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 23:07:33,022 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2024-11-22 23:07:33,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-22 23:07:33,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:07:33,028 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 40, 40, 40, 40, 40, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:33,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 23:07:33,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 23:07:33,228 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_22_to_23_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-22 23:07:33,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:07:33,229 INFO L85 PathProgramCache]: Analyzing trace with hash -752139170, now seen corresponding path program 1 times [2024-11-22 23:07:33,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:07:33,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096455515] [2024-11-22 23:07:33,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:33,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:07:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 7352 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7346 trivial. 0 not checked. [2024-11-22 23:07:34,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:07:34,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096455515] [2024-11-22 23:07:34,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096455515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:07:34,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279958968] [2024-11-22 23:07:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:07:34,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:07:34,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:07:34,120 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) [2024-11-22 23:07:34,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 23:07:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:07:34,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 23:07:34,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:07:34,785 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 [2024-11-22 23:07:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7352 backedges. 3789 proven. 0 refuted. 0 times theorem prover too weak. 3563 trivial. 0 not checked. [2024-11-22 23:07:34,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:07:34,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279958968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:07:34,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:07:34,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-22 23:07:34,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620741924] [2024-11-22 23:07:34,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:07:34,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:07:34,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:07:34,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:07:34,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-22 23:07:34,799 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 23:07:34,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:07:34,854 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2024-11-22 23:07:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:07:34,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 460 [2024-11-22 23:07:34,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:07:34,856 INFO L225 Difference]: With dead ends: 66 [2024-11-22 23:07:34,856 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 23:07:34,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 456 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-22 23:07:34,856 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 6 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:07:34,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:07:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 23:07:34,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 23:07:34,857 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) [2024-11-22 23:07:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 23:07:34,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 460 [2024-11-22 23:07:34,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:07:34,859 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 23:07:34,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 23:07:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 23:07:34,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 23:07:34,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-22 23:07:34,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-22 23:07:34,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-22 23:07:34,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_23_to_24_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-22 23:07:34,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-22 23:07:34,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_22_to_23_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-22 23:07:34,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_25_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-22 23:07:34,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_25_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-22 23:07:34,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 23:07:35,063 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 [2024-11-22 23:07:35,066 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:07:35,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 23:07:55,465 WARN L286 SmtUtils]: Spent 20.10s on a formula simplification. DAG size of input: 55 DAG size of output: 42 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-22 23:08:03,761 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 53 DAG size of output: 37 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-22 23:08:08,164 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 23:08:08,170 WARN L156 FloydHoareUtils]: Requires clause for func_to_recursive_line_24_to_25_0 contained old-variable. Original clause: (and (= |#memory_int#1| |old(#memory_int#1)|) (let ((.cse1 (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3 Int)) (<= (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3) 5))) (.cse0 (select (select |old(#memory_int#1)| |func_to_recursive_line_24_to_25_0_#in~c.base|) |func_to_recursive_line_24_to_25_0_#in~c.offset|)) (.cse2 (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2 Int)) (<= 0 (+ (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2) 2147483648))))) (or (and (<= 1 .cse0) .cse1 .cse2) (and .cse1 (= .cse0 0) .cse2))) (= |#memory_int#3| |old(#memory_int#3)|)) Eliminated clause: (let ((.cse0 (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3 Int)) (<= (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3) 5))) (.cse1 (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2 Int)) (<= 0 (+ (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2) 2147483648)))) (.cse2 (select (select |#memory_int#1| |func_to_recursive_line_24_to_25_0_#in~c.base|) |func_to_recursive_line_24_to_25_0_#in~c.offset|))) (or (and .cse0 .cse1 (<= 1 .cse2)) (and .cse0 .cse1 (= .cse2 0)))) [2024-11-22 23:08:08,175 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,176 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,177 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-22 23:08:08,177 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-22 23:08:08,177 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~c!base,]]] [2024-11-22 23:08:08,178 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,178 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,178 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-22 23:08:08,178 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-22 23:08:08,178 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~c!base,]]] [2024-11-22 23:08:08,178 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-22 23:08:08,178 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-11-22 23:08:08,179 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~c!base,]]] [2024-11-22 23:08:08,179 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,179 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,179 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,179 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-22 23:08:08,179 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-11-22 23:08:08,179 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~c!base,]]] [2024-11-22 23:08:08,179 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,182 WARN L156 FloydHoareUtils]: Requires clause for func_to_recursive_line_23_to_24_0 contained old-variable. Original clause: (and (= |#memory_int#4| |old(#memory_int#4)|) (= |#memory_int#1| |old(#memory_int#1)|) (let ((.cse0 (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3 Int)) (<= (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3) 5))) (.cse1 (select (select |old(#memory_int#4)| |func_to_recursive_line_23_to_24_0_#in~b.base|) |func_to_recursive_line_23_to_24_0_#in~b.offset|)) (.cse2 (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2 Int)) (<= 0 (+ (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2) 2147483648))))) (or (and .cse0 (<= 1 .cse1) .cse2) (and .cse0 (= .cse1 0) .cse2))) (= |#memory_int#3| |old(#memory_int#3)|)) Eliminated clause: (let ((.cse0 (select (select |#memory_int#4| |func_to_recursive_line_23_to_24_0_#in~b.base|) |func_to_recursive_line_23_to_24_0_#in~b.offset|)) (.cse1 (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3 Int)) (<= (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3) 5))) (.cse2 (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2 Int)) (<= 0 (+ (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2) 2147483648))))) (or (and (= .cse0 0) .cse1 .cse2) (and (<= 1 .cse0) .cse1 .cse2))) [2024-11-22 23:08:08,183 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~b!base,]]] [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~b!base,]]] [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,184 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]] [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~b!base,]]] [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]] [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~b!base,]]] [2024-11-22 23:08:08,185 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,186 WARN L156 FloydHoareUtils]: Requires clause for func_to_recursive_line_22_to_23_0 contained old-variable. Original clause: (let ((.cse0 (select (select |old(#memory_int#2)| |func_to_recursive_line_22_to_23_0_#in~a.base|) |func_to_recursive_line_22_to_23_0_#in~a.offset|)) (.cse1 (select (select |#memory_int#2| |func_to_recursive_line_22_to_23_0_#in~a.base|) |func_to_recursive_line_22_to_23_0_#in~a.offset|))) (and (= |#memory_int#4| |old(#memory_int#4)|) (<= 0 (+ .cse0 2147483648)) (= |#memory_int#1| |old(#memory_int#1)|) (<= 0 (+ .cse1 2147483648)) (= |#memory_int#3| |old(#memory_int#3)|) (or (not (= .cse0 0)) (= .cse1 0)))) Eliminated clause: (let ((.cse1 (select (select |#memory_int#2| |func_to_recursive_line_22_to_23_0_#in~a.base|) |func_to_recursive_line_22_to_23_0_#in~a.offset|))) (and (exists ((|old(#memory_int#2)| (Array Int (Array Int Int)))) (let ((.cse0 (select (select |old(#memory_int#2)| |func_to_recursive_line_22_to_23_0_#in~a.base|) |func_to_recursive_line_22_to_23_0_#in~a.offset|))) (and (<= 0 (+ .cse0 2147483648)) (or (not (= .cse0 0)) (= .cse1 0))))) (<= 0 (+ .cse1 2147483648)))) [2024-11-22 23:08:08,187 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,187 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-11-22 23:08:08,187 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-11-22 23:08:08,187 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[#in~a!base,]]] [2024-11-22 23:08:08,188 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-11-22 23:08:08,188 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]] [2024-11-22 23:08:08,188 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]],[IdentifierExpression[#in~a!base,]]] [2024-11-22 23:08:08,188 WARN L156 FloydHoareUtils]: Requires clause for func_to_recursive_line_25_to_25_0 contained old-variable. Original clause: (and (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3 Int)) (<= (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3) 5)) (<= 0 (+ (select (select |old(#memory_int#3)| |func_to_recursive_line_25_to_25_0_#in~d.base|) |func_to_recursive_line_25_to_25_0_#in~d.offset|) 2147483648)) (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2 Int)) (<= 0 (+ (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2) 2147483648))) (= |#memory_int#3| |old(#memory_int#3)|)) Eliminated clause: (and (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3 Int)) (<= (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_3) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_3) 5)) (<= 0 (+ (select (select |#memory_int#3| |func_to_recursive_line_25_to_25_0_#in~d.base|) |func_to_recursive_line_25_to_25_0_#in~d.offset|) 2147483648)) (exists ((v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2 Int) (v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2 Int)) (<= 0 (+ (select (select |#memory_int#2| v_func_to_recursive_line_22_to_23_0_~a.base_BEFORE_CALL_2) v_func_to_recursive_line_22_to_23_0_~a.offset_BEFORE_CALL_2) 2147483648)))) [2024-11-22 23:08:08,189 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,189 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#3 [2024-11-22 23:08:08,189 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL] [2024-11-22 23:08:08,189 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~d!base,]]] [2024-11-22 23:08:08,189 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,190 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,190 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#3 [2024-11-22 23:08:08,190 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]] [2024-11-22 23:08:08,190 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]],[IdentifierExpression[#in~d!base,]]] [2024-11-22 23:08:08,190 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 23:08:08,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 11:08:08 BoogieIcfgContainer [2024-11-22 23:08:08,190 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 23:08:08,191 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 23:08:08,191 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 23:08:08,191 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 23:08:08,191 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:16" (3/4) ... [2024-11-22 23:08:08,193 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 23:08:08,196 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_24_to_25_0 [2024-11-22 23:08:08,196 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_23_to_24_0 [2024-11-22 23:08:08,196 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_22_to_23_0 [2024-11-22 23:08:08,196 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_25_to_25_0 [2024-11-22 23:08:08,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-22 23:08:08,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 23:08:08,203 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-22 23:08:08,204 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 23:08:08,284 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 23:08:08,284 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 23:08:08,284 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 23:08:08,285 INFO L158 Benchmark]: Toolchain (without parser) took 51900.66ms. Allocated memory was 176.2MB in the beginning and 601.9MB in the end (delta: 425.7MB). Free memory was 106.8MB in the beginning and 550.3MB in the end (delta: -443.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 23:08:08,285 INFO L158 Benchmark]: CDTParser took 3.48ms. Allocated memory is still 125.8MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 23:08:08,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.26ms. Allocated memory is still 176.2MB. Free memory was 106.8MB in the beginning and 94.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 23:08:08,285 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.00ms. Allocated memory is still 176.2MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 23:08:08,285 INFO L158 Benchmark]: Boogie Preprocessor took 45.88ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 90.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 23:08:08,285 INFO L158 Benchmark]: RCFGBuilder took 298.29ms. Allocated memory is still 176.2MB. Free memory was 90.4MB in the beginning and 72.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 23:08:08,286 INFO L158 Benchmark]: TraceAbstraction took 51206.92ms. Allocated memory was 176.2MB in the beginning and 601.9MB in the end (delta: 425.7MB). Free memory was 72.0MB in the beginning and 556.6MB in the end (delta: -484.6MB). Peak memory consumption was 290.9MB. Max. memory is 16.1GB. [2024-11-22 23:08:08,286 INFO L158 Benchmark]: Witness Printer took 93.56ms. Allocated memory is still 601.9MB. Free memory was 555.5MB in the beginning and 550.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 23:08:08,287 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.48ms. Allocated memory is still 125.8MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.26ms. Allocated memory is still 176.2MB. Free memory was 106.8MB in the beginning and 94.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.00ms. Allocated memory is still 176.2MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.88ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 90.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.29ms. Allocated memory is still 176.2MB. Free memory was 90.4MB in the beginning and 72.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 51206.92ms. Allocated memory was 176.2MB in the beginning and 601.9MB in the end (delta: 425.7MB). Free memory was 72.0MB in the beginning and 556.6MB in the end (delta: -484.6MB). Peak memory consumption was 290.9MB. Max. memory is 16.1GB. * Witness Printer took 93.56ms. Allocated memory is still 601.9MB. Free memory was 555.5MB in the beginning and 550.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~c!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~c!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~c!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~c!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~b!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~b!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~b!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~b!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[#in~a!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]],[IdentifierExpression[#in~a!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~d!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]],[IdentifierExpression[#in~d!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 57 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 18.0s, OverallIterations: 16, TraceHistogramMax: 48, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 284 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 275 mSDsluCounter, 3220 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2626 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2584 IncrementalHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 594 mSDtfsCounter, 2584 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1993 GetRequests, 1729 SyntacticMatches, 2 SemanticMatches, 262 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2002 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=12, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 31 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 3206 NumberOfCodeBlocks, 3206 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3614 ConstructedInterpolants, 444 QuantifiedInterpolants, 10694 SizeOfPredicates, 53 NumberOfNonLiveVariables, 6213 ConjunctsInSsa, 242 ConjunctsInUnsatCore, 27 InterpolantComputations, 12 PerfectInterpolantSequences, 35180/36191 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 23:08:08,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE