./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.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 a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:42:30,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:42:30,765 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:42:30,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:42:30,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:42:30,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:42:30,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:42:30,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:42:30,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:42:30,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:42:30,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:42:30,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:42:30,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:42:30,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:42:30,794 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:42:30,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:42:30,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:42:30,795 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:42:30,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:42:30,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:42:30,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:42:30,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:42:30,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:42:30,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:42:30,799 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:42:30,799 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:42:30,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:42:30,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:42:30,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:42:30,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:42:30,800 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:42:30,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:42:30,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:42:30,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:42:30,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:30,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:42:30,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:42:30,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:42:30,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:42:30,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:42:30,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:42:30,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:42:30,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:42:30,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:42:30,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2024-11-10 19:42:30,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:42:31,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:42:31,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:42:31,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:42:31,017 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:42:31,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-10 19:42:32,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:42:32,378 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:42:32,378 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-10 19:42:32,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/badc7014c/70c9cedf44ea4c75a9a131e44d3b46fc/FLAG71c4668eb [2024-11-10 19:42:32,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/badc7014c/70c9cedf44ea4c75a9a131e44d3b46fc [2024-11-10 19:42:32,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:42:32,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:42:32,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:32,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:42:32,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:42:32,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38452542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32, skipping insertion in model container [2024-11-10 19:42:32,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:42:32,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:32,580 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:42:32,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:32,620 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:42:32,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32 WrapperNode [2024-11-10 19:42:32,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:32,622 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:32,622 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:42:32,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:42:32,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,646 INFO L138 Inliner]: procedures = 16, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-10 19:42:32,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:32,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:42:32,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:42:32,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:42:32,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,657 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,673 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 5, 5, 8, 5, 4]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 2, 2, 3, 1, 1]. [2024-11-10 19:42:32,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,679 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:42:32,686 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:42:32,686 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:42:32,686 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:42:32,686 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (1/1) ... [2024-11-10 19:42:32,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:32,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:32,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 19:42:32,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 19:42:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:42:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:42:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 19:42:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 19:42:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 19:42:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 19:42:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 19:42:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 19:42:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 19:42:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 19:42:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 19:42:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 19:42:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 19:42:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 19:42:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:42:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:42:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 19:42:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 19:42:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 19:42:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 19:42:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 19:42:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 19:42:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:42:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:42:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2024-11-10 19:42:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2024-11-10 19:42:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 19:42:32,861 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:42:32,864 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:42:33,075 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: call ULTIMATE.dealloc(main_~#a~0#1.base, main_~#a~0#1.offset);havoc main_~#a~0#1.base, main_~#a~0#1.offset;call ULTIMATE.dealloc(main_~#b~0#1.base, main_~#b~0#1.offset);havoc main_~#b~0#1.base, main_~#b~0#1.offset;call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset;call ULTIMATE.dealloc(main_~#y~0#1.base, main_~#y~0#1.offset);havoc main_~#y~0#1.base, main_~#y~0#1.offset;call ULTIMATE.dealloc(main_~#z~0#1.base, main_~#z~0#1.offset);havoc main_~#z~0#1.base, main_~#z~0#1.offset; [2024-11-10 19:42:33,180 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-10 19:42:33,180 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:42:33,195 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:42:33,195 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:42:33,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:33 BoogieIcfgContainer [2024-11-10 19:42:33,196 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:42:33,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:42:33,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:42:33,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:42:33,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:42:32" (1/3) ... [2024-11-10 19:42:33,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11075f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:33, skipping insertion in model container [2024-11-10 19:42:33,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:32" (2/3) ... [2024-11-10 19:42:33,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11075f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:33, skipping insertion in model container [2024-11-10 19:42:33,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:33" (3/3) ... [2024-11-10 19:42:33,204 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2024-11-10 19:42:33,216 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:42:33,216 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-10 19:42:33,266 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:42:33,270 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;@60761bbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:42:33,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-10 19:42:33,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 58 states have internal predecessors, (62), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:42:33,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 19:42:33,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:33,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:33,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:42:33,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:33,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1539032614, now seen corresponding path program 1 times [2024-11-10 19:42:33,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:33,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793744685] [2024-11-10 19:42:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:33,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:33,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:42:33,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793744685] [2024-11-10 19:42:33,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793744685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:33,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:33,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:42:33,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304612535] [2024-11-10 19:42:33,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:33,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:42:33,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:42:33,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:42:33,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:42:33,462 INFO L87 Difference]: Start difference. First operand has 64 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 58 states have internal predecessors, (62), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:42:33,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:33,478 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2024-11-10 19:42:33,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:42:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-10 19:42:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:33,483 INFO L225 Difference]: With dead ends: 124 [2024-11-10 19:42:33,483 INFO L226 Difference]: Without dead ends: 57 [2024-11-10 19:42:33,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:42:33,488 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:33,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:42:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-10 19:42:33,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-10 19:42:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 52 states have internal predecessors, (53), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:42:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2024-11-10 19:42:33,518 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 8 [2024-11-10 19:42:33,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:33,519 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2024-11-10 19:42:33,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:42:33,519 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2024-11-10 19:42:33,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 19:42:33,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:33,520 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:33,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:42:33,521 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:42:33,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1510403463, now seen corresponding path program 1 times [2024-11-10 19:42:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:42:33,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664857751] [2024-11-10 19:42:33,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:33,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:42:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:42:33,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416750563] [2024-11-10 19:42:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:33,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:33,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:33,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:42:33,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 19:42:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 19:42:33,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 19:42:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 19:42:33,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 19:42:33,683 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 19:42:33,685 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-10 19:42:33,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-10 19:42:33,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-10 19:42:33,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-10 19:42:33,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-10 19:42:33,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-10 19:42:33,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-10 19:42:33,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-10 19:42:33,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-10 19:42:33,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-10 19:42:33,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-10 19:42:33,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-10 19:42:33,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-10 19:42:33,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-10 19:42:33,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-10 19:42:33,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-10 19:42:33,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:33,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:42:33,896 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 19:42:33,920 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 19:42:33,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:42:33 BoogieIcfgContainer [2024-11-10 19:42:33,923 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 19:42:33,923 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 19:42:33,923 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 19:42:33,923 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 19:42:33,924 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:33" (3/4) ... [2024-11-10 19:42:33,925 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 19:42:33,928 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 19:42:33,928 INFO L158 Benchmark]: Toolchain (without parser) took 1531.89ms. Allocated memory is still 169.9MB. Free memory was 132.7MB in the beginning and 86.2MB in the end (delta: 46.5MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2024-11-10 19:42:33,929 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 100.7MB. Free memory was 70.7MB in the beginning and 70.6MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 19:42:33,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.93ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 118.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 19:42:33,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.00ms. Allocated memory is still 169.9MB. Free memory was 118.2MB in the beginning and 117.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 19:42:33,931 INFO L158 Benchmark]: Boogie Preprocessor took 36.52ms. Allocated memory is still 169.9MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 19:42:33,931 INFO L158 Benchmark]: IcfgBuilder took 510.18ms. Allocated memory is still 169.9MB. Free memory was 114.9MB in the beginning and 127.2MB in the end (delta: -12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 19:42:33,931 INFO L158 Benchmark]: TraceAbstraction took 724.84ms. Allocated memory is still 169.9MB. Free memory was 127.2MB in the beginning and 86.3MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-10 19:42:33,932 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 169.9MB. Free memory was 86.3MB in the beginning and 86.2MB in the end (delta: 133.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 19:42:33,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 100.7MB. Free memory was 70.7MB in the beginning and 70.6MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.93ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 118.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.00ms. Allocated memory is still 169.9MB. Free memory was 118.2MB in the beginning and 117.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.52ms. Allocated memory is still 169.9MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 510.18ms. Allocated memory is still 169.9MB. Free memory was 114.9MB in the beginning and 127.2MB in the end (delta: -12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 724.84ms. Allocated memory is still 169.9MB. Free memory was 127.2MB in the beginning and 86.3MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 169.9MB. Free memory was 86.3MB in the beginning and 86.2MB in the end (delta: 133.6kB). There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 87. Possible FailurePath: [L82] int a; [L83] int b; [L84] int x; [L85] int y; [L86] int z; [L87] a = __VERIFIER_nondet_double() [L88] b = __VERIFIER_nondet_double() [L89] EXPR \read(b) [L89] CALL assume_abort_if_not(b >= 1) [L24] COND FALSE !(!cond) [L89] RET assume_abort_if_not(b >= 1) [L90] EXPR \read(a) [L90] x = a [L91] EXPR \read(b) [L91] y = b [L92] z = 0 [L93] CALL func_to_recursive_line_30_to_40_0(&a, &b, &z, &x, &y) VAL [\old(a)={4:0}, \old(b)={6:0}, \old(x)={9:0}, \old(y)={7:0}, \old(z)={8:0}] [L51] COND TRUE 1 [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [\old(a)={4:0}, \old(b)={6:0}, \old(x)={9:0}, \old(y)={7:0}, \old(z)={8:0}, a={4:0}, b={6:0}, x={9:0}, y={7:0}, z={8:0}] [L54] (*x) * (*y) VAL [\old(a)={4:0}, \old(b)={6:0}, \old(x)={9:0}, \old(y)={7:0}, \old(z)={8:0}, a={4:0}, b={6:0}, x={9:0}, y={7:0}, z={8:0}] - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 64 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 66 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-10 19:42:33,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.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 a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:42:35,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:42:35,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-10 19:42:35,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:42:35,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:42:35,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:42:35,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:42:35,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:42:35,816 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:42:35,817 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:42:35,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:42:35,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:42:35,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:42:35,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:42:35,818 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:42:35,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:42:35,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:42:35,819 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:42:35,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:42:35,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:42:35,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:42:35,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:42:35,823 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:42:35,824 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 19:42:35,824 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 19:42:35,824 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:42:35,824 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:42:35,824 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 19:42:35,824 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:42:35,824 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:42:35,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:42:35,825 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:42:35,825 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:42:35,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:42:35,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:42:35,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:42:35,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:35,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:42:35,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:42:35,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:42:35,826 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 19:42:35,828 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 19:42:35,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:42:35,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:42:35,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:42:35,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:42:35,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2024-11-10 19:42:36,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:42:36,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:42:36,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:42:36,089 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:42:36,090 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:42:36,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-10 19:42:37,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:42:37,516 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:42:37,516 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-10 19:42:37,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72156a5c/b99b3e651e5a48e2ab8b46fd9e43434d/FLAGcd4ab0823 [2024-11-10 19:42:37,537 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72156a5c/b99b3e651e5a48e2ab8b46fd9e43434d [2024-11-10 19:42:37,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:42:37,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:42:37,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:37,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:42:37,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:42:37,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421e7bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37, skipping insertion in model container [2024-11-10 19:42:37,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,565 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:42:37,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:37,763 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:42:37,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:42:37,800 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:42:37,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37 WrapperNode [2024-11-10 19:42:37,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:42:37,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:37,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:42:37,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:42:37,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,838 INFO L138 Inliner]: procedures = 19, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-10 19:42:37,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:42:37,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:42:37,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:42:37,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:42:37,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,867 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 5, 4, 5, 8, 5]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 2, 1, 1, 3, 2]. [2024-11-10 19:42:37,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,874 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:42:37,880 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:42:37,880 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:42:37,880 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:42:37,881 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (1/1) ... [2024-11-10 19:42:37,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:42:37,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:42:37,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 19:42:37,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 19:42:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:42:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 19:42:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-10 19:42:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-10 19:42:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-10 19:42:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-10 19:42:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-10 19:42:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 19:42:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-10 19:42:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-10 19:42:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-10 19:42:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-10 19:42:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:42:37,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:42:37,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2024-11-10 19:42:37,952 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-10 19:42:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-10 19:42:38,038 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:42:38,040 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:42:38,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: call ULTIMATE.dealloc(main_~#a~0#1.base, main_~#a~0#1.offset);havoc main_~#a~0#1.base, main_~#a~0#1.offset;call ULTIMATE.dealloc(main_~#b~0#1.base, main_~#b~0#1.offset);havoc main_~#b~0#1.base, main_~#b~0#1.offset;call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset;call ULTIMATE.dealloc(main_~#y~0#1.base, main_~#y~0#1.offset);havoc main_~#y~0#1.base, main_~#y~0#1.offset;call ULTIMATE.dealloc(main_~#z~0#1.base, main_~#z~0#1.offset);havoc main_~#z~0#1.base, main_~#z~0#1.offset; [2024-11-10 19:42:38,971 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-11-10 19:42:38,971 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:42:38,990 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:42:38,990 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:42:38,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:38 BoogieIcfgContainer [2024-11-10 19:42:38,991 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:42:38,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:42:38,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:42:38,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:42:38,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:42:37" (1/3) ... [2024-11-10 19:42:38,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cbc1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:38, skipping insertion in model container [2024-11-10 19:42:38,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:37" (2/3) ... [2024-11-10 19:42:38,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cbc1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:38, skipping insertion in model container [2024-11-10 19:42:38,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:38" (3/3) ... [2024-11-10 19:42:38,999 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2024-11-10 19:42:39,013 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:42:39,013 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-10 19:42:39,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:42:39,065 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;@4abb00c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:42:39,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-10 19:42:39,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 58 states have internal predecessors, (62), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:42:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 19:42:39,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:39,075 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:39,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:42:39,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:39,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1539032614, now seen corresponding path program 1 times [2024-11-10 19:42:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 19:42:39,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825449330] [2024-11-10 19:42:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:39,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 19:42:39,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 19:42:39,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 19:42:39,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-10 19:42:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:42:39,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-10 19:42:39,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:42:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:42:39,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:42:39,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 19:42:39,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825449330] [2024-11-10 19:42:39,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825449330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:42:39,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:42:39,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:42:39,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073147335] [2024-11-10 19:42:39,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:42:39,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:42:39,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 19:42:39,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:42:39,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:42:39,248 INFO L87 Difference]: Start difference. First operand has 64 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 58 states have internal predecessors, (62), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:42:39,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:42:39,271 INFO L93 Difference]: Finished difference Result 121 states and 139 transitions. [2024-11-10 19:42:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:42:39,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-10 19:42:39,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:42:39,277 INFO L225 Difference]: With dead ends: 121 [2024-11-10 19:42:39,278 INFO L226 Difference]: Without dead ends: 54 [2024-11-10 19:42:39,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:42:39,285 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:42:39,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:42:39,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-10 19:42:39,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-10 19:42:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 49 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:42:39,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2024-11-10 19:42:39,318 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 8 [2024-11-10 19:42:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:42:39,318 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2024-11-10 19:42:39,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:42:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2024-11-10 19:42:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 19:42:39,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:42:39,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:42:39,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:39,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 19:42:39,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:42:39,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:42:39,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1510403463, now seen corresponding path program 1 times [2024-11-10 19:42:39,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 19:42:39,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688908497] [2024-11-10 19:42:39,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:42:39,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 19:42:39,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 19:42:39,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 19:42:39,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-10 19:42:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 19:42:39,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 19:42:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 19:42:39,801 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-10 19:42:39,802 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 19:42:39,804 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-10 19:42:39,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-10 19:42:39,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-10 19:42:39,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-10 19:42:39,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-10 19:42:39,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-10 19:42:39,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-10 19:42:39,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-10 19:42:39,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-10 19:42:39,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-10 19:42:39,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-10 19:42:39,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-10 19:42:39,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-10 19:42:39,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-10 19:42:39,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-10 19:42:39,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-10 19:42:39,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-10 19:42:40,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 19:42:40,019 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 19:42:40,039 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 19:42:40,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:42:40 BoogieIcfgContainer [2024-11-10 19:42:40,042 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 19:42:40,042 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 19:42:40,042 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 19:42:40,042 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 19:42:40,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:42:38" (3/4) ... [2024-11-10 19:42:40,043 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-10 19:42:40,068 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 19:42:40,068 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 19:42:40,069 INFO L158 Benchmark]: Toolchain (without parser) took 2529.31ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 28.9MB in the beginning and 56.4MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 19:42:40,069 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 19:42:40,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.00ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 28.7MB in the beginning and 55.8MB in the end (delta: -27.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-10 19:42:40,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.29ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 19:42:40,070 INFO L158 Benchmark]: Boogie Preprocessor took 40.67ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 51.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 19:42:40,070 INFO L158 Benchmark]: IcfgBuilder took 1111.01ms. Allocated memory is still 83.9MB. Free memory was 51.8MB in the beginning and 62.4MB in the end (delta: -10.7MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2024-11-10 19:42:40,070 INFO L158 Benchmark]: TraceAbstraction took 1047.60ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 58.5MB in the end (delta: 3.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2024-11-10 19:42:40,070 INFO L158 Benchmark]: Witness Printer took 26.35ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 56.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 19:42:40,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.00ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 28.7MB in the beginning and 55.8MB in the end (delta: -27.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.29ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.67ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 51.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 1111.01ms. Allocated memory is still 83.9MB. Free memory was 51.8MB in the beginning and 62.4MB in the end (delta: -10.7MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1047.60ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 58.5MB in the end (delta: 3.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Witness Printer took 26.35ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 56.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 - CounterExampleResult [Line: 54]: integer overflow possible integer overflow possible We found a FailurePath: [L82] int a; [L83] int b; [L84] int x; [L85] int y; [L86] int z; [L87] a = __VERIFIER_nondet_double() [L88] b = __VERIFIER_nondet_double() [L89] EXPR \read(b) [L89] CALL assume_abort_if_not(b >= 1) [L24] COND FALSE !(!cond) [L89] RET assume_abort_if_not(b >= 1) [L90] EXPR \read(a) [L90] x = a [L91] EXPR \read(b) [L91] y = b [L92] z = 0 [L93] CALL func_to_recursive_line_30_to_40_0(&a, &b, &z, &x, &y) VAL [\old(a)={14:0}, \old(b)={11:0}, \old(x)={-2147483642:0}, \old(y)={15:0}, \old(z)={7:0}] [L51] COND TRUE 1 [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [\old(a)={14:0}, \old(b)={11:0}, \old(x)={-2147483642:0}, \old(y)={15:0}, \old(z)={7:0}, a={14:0}, b={11:0}, x={-2147483642:0}, y={15:0}, z={7:0}] [L54] (*x) * (*y) VAL [\old(a)={14:0}, \old(b)={11:0}, \old(x)={-2147483642:0}, \old(y)={15:0}, \old(z)={7:0}, a={14:0}, b={11:0}, x={-2147483642:0}, y={15:0}, z={7:0}] - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 64 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 63 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-10 19:42:40,096 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)