./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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_hard.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 55885307ad7991ec619705bd65f9ccb0a7f28b4003909403684402b81add0d87 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 12:17:32,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 12:17:32,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 12:17:32,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 12:17:32,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 12:17:32,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 12:17:32,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 12:17:32,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 12:17:32,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 12:17:32,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 12:17:32,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 12:17:32,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 12:17:32,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 12:17:32,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 12:17:32,228 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 12:17:32,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 12:17:32,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 12:17:32,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 12:17:32,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 12:17:32,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 12:17:32,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 12:17:32,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 12:17:32,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 12:17:32,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 12:17:32,234 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 12:17:32,234 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 12:17:32,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 12:17:32,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 12:17:32,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 12:17:32,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 12:17:32,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 12:17:32,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 12:17:32,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 12:17:32,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 12:17:32,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 12:17:32,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 12:17:32,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 12:17:32,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 12:17:32,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 12:17:32,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 12:17:32,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 12:17:32,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 12:17:32,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 12:17:32,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 12:17:32,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55885307ad7991ec619705bd65f9ccb0a7f28b4003909403684402b81add0d87 [2024-11-09 12:17:32,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 12:17:32,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 12:17:32,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 12:17:32,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 12:17:32,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 12:17:32,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2024-11-09 12:17:34,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 12:17:34,441 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 12:17:34,442 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2024-11-09 12:17:34,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04e86edae/b6e0b4228e5747e183c21a1dbe69c27b/FLAG5f55f4374 [2024-11-09 12:17:34,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04e86edae/b6e0b4228e5747e183c21a1dbe69c27b [2024-11-09 12:17:34,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 12:17:34,779 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 12:17:34,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 12:17:34,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 12:17:34,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 12:17:34,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:17:34" (1/1) ... [2024-11-09 12:17:34,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3765e9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:34, skipping insertion in model container [2024-11-09 12:17:34,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:17:34" (1/1) ... [2024-11-09 12:17:34,818 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 12:17:35,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 12:17:35,105 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 12:17:35,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 12:17:35,170 INFO L204 MainTranslator]: Completed translation [2024-11-09 12:17:35,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35 WrapperNode [2024-11-09 12:17:35,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 12:17:35,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 12:17:35,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 12:17:35,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 12:17:35,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,214 INFO L138 Inliner]: procedures = 17, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-11-09 12:17:35,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 12:17:35,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 12:17:35,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 12:17:35,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 12:17:35,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,256 INFO L175 MemorySlicer]: Split 56 memory accesses to 8 slices as follows [2, 7, 12, 7, 8, 5, 6, 9]. 21 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7, 0, 0, 0, 0, 0, 0]. The 12 writes are split as follows [0, 0, 3, 1, 2, 1, 2, 3]. [2024-11-09 12:17:35,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 12:17:35,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 12:17:35,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 12:17:35,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 12:17:35,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (1/1) ... [2024-11-09 12:17:35,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 12:17:35,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:17:35,322 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) [2024-11-09 12:17:35,325 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 [2024-11-09 12:17:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 12:17:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 12:17:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 12:17:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 12:17:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 12:17:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 12:17:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 12:17:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 12:17:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 12:17:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_41_to_51_0 [2024-11-09 12:17:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_41_to_51_0 [2024-11-09 12:17:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 12:17:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_38_0 [2024-11-09 12:17:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_38_0 [2024-11-09 12:17:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 12:17:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 12:17:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 12:17:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 12:17:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 12:17:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 12:17:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 12:17:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 12:17:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 12:17:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 12:17:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 12:17:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 12:17:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 12:17:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 12:17:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 12:17:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 12:17:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 12:17:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 12:17:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 12:17:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 12:17:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 12:17:35,496 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 12:17:35,498 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 12:17:35,921 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-09 12:17:35,921 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 12:17:35,943 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 12:17:35,944 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 12:17:35,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:17:35 BoogieIcfgContainer [2024-11-09 12:17:35,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 12:17:35,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 12:17:35,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 12:17:35,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 12:17:35,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:17:34" (1/3) ... [2024-11-09 12:17:35,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f8dcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:17:35, skipping insertion in model container [2024-11-09 12:17:35,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:35" (2/3) ... [2024-11-09 12:17:35,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f8dcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:17:35, skipping insertion in model container [2024-11-09 12:17:35,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:17:35" (3/3) ... [2024-11-09 12:17:35,957 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_hard.c [2024-11-09 12:17:35,973 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 12:17:35,973 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 12:17:36,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 12:17:36,040 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;@4fe06f5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 12:17:36,040 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 12:17:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 78 states have internal predecessors, (83), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 12:17:36,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 12:17:36,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:17:36,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:17:36,058 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 12:17:36,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:17:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1724308564, now seen corresponding path program 1 times [2024-11-09 12:17:36,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:17:36,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112501736] [2024-11-09 12:17:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:36,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:17:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:36,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 12:17:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:17:36,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:17:36,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112501736] [2024-11-09 12:17:36,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112501736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:17:36,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:17:36,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 12:17:36,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660928712] [2024-11-09 12:17:36,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:17:36,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 12:17:36,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:17:36,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 12:17:36,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 12:17:36,421 INFO L87 Difference]: Start difference. First operand has 91 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 78 states have internal predecessors, (83), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 12:17:36,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:17:36,592 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2024-11-09 12:17:36,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 12:17:36,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-09 12:17:36,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:17:36,611 INFO L225 Difference]: With dead ends: 182 [2024-11-09 12:17:36,611 INFO L226 Difference]: Without dead ends: 86 [2024-11-09 12:17:36,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 12:17:36,619 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 41 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:17:36,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 113 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:17:36,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-09 12:17:36,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2024-11-09 12:17:36,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.565217391304348) internal successors, (72), 71 states have internal predecessors, (72), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 12:17:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2024-11-09 12:17:36,687 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 13 [2024-11-09 12:17:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:17:36,688 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2024-11-09 12:17:36,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 12:17:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2024-11-09 12:17:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 12:17:36,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:17:36,690 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:17:36,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 12:17:36,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_31_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 12:17:36,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:17:36,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1785624201, now seen corresponding path program 1 times [2024-11-09 12:17:36,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:17:36,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675810014] [2024-11-09 12:17:36,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:36,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:17:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:17:36,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974760413] [2024-11-09 12:17:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:36,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:17:36,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:17:36,840 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) [2024-11-09 12:17:36,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 12:17:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:36,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 12:17:36,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:17:37,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 12:17:37,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 12:17:37,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 12:17:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 12:17:37,462 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:17:37,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:17:37,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675810014] [2024-11-09 12:17:37,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:17:37,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974760413] [2024-11-09 12:17:37,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974760413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:17:37,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:17:37,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 12:17:37,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681632305] [2024-11-09 12:17:37,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:17:37,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 12:17:37,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:17:37,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 12:17:37,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 12:17:37,468 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 12:17:37,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:17:37,744 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2024-11-09 12:17:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 12:17:37,745 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-09 12:17:37,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:17:37,747 INFO L225 Difference]: With dead ends: 148 [2024-11-09 12:17:37,747 INFO L226 Difference]: Without dead ends: 147 [2024-11-09 12:17:37,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-09 12:17:37,748 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 90 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:17:37,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 436 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:17:37,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-09 12:17:37,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 115. [2024-11-09 12:17:37,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 70 states have (on average 1.5) internal successors, (105), 95 states have internal predecessors, (105), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-09 12:17:37,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 137 transitions. [2024-11-09 12:17:37,777 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 137 transitions. Word has length 20 [2024-11-09 12:17:37,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:17:37,777 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 137 transitions. [2024-11-09 12:17:37,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 12:17:37,778 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 137 transitions. [2024-11-09 12:17:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 12:17:37,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:17:37,779 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:17:37,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 12:17:37,983 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 [2024-11-09 12:17:37,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_31_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 12:17:37,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:17:37,986 INFO L85 PathProgramCache]: Analyzing trace with hash -480224525, now seen corresponding path program 1 times [2024-11-09 12:17:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:17:37,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846501098] [2024-11-09 12:17:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:37,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:17:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:17:38,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956824758] [2024-11-09 12:17:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:38,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:17:38,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:17:38,079 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:17:38,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 12:17:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:38,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 12:17:38,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:17:38,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 12:17:38,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 12:17:38,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 12:17:38,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 12:17:38,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:17:38,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:17:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846501098] [2024-11-09 12:17:38,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:17:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956824758] [2024-11-09 12:17:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956824758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:17:38,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:17:38,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 12:17:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049243828] [2024-11-09 12:17:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:17:38,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 12:17:38,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:17:38,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 12:17:38,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:17:38,528 INFO L87 Difference]: Start difference. First operand 115 states and 137 transitions. Second operand has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 12:17:38,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:17:38,765 INFO L93 Difference]: Finished difference Result 147 states and 161 transitions. [2024-11-09 12:17:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 12:17:38,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-09 12:17:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:17:38,768 INFO L225 Difference]: With dead ends: 147 [2024-11-09 12:17:38,768 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 12:17:38,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-09 12:17:38,770 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 87 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:17:38,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 381 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:17:38,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 12:17:38,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2024-11-09 12:17:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 95 states have internal predecessors, (104), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-09 12:17:38,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2024-11-09 12:17:38,799 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 21 [2024-11-09 12:17:38,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:17:38,799 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2024-11-09 12:17:38,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 12:17:38,800 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2024-11-09 12:17:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 12:17:38,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:17:38,800 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:17:38,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 12:17:39,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 12:17:39,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_31_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 12:17:39,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:17:39,008 INFO L85 PathProgramCache]: Analyzing trace with hash 10484700, now seen corresponding path program 1 times [2024-11-09 12:17:39,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:17:39,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785382037] [2024-11-09 12:17:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:39,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:17:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:39,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 12:17:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:39,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 12:17:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:39,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 12:17:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:17:39,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:17:39,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785382037] [2024-11-09 12:17:39,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785382037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:17:39,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:17:39,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 12:17:39,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680261672] [2024-11-09 12:17:39,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:17:39,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 12:17:39,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:17:39,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 12:17:39,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:17:39,653 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:17:39,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:17:39,813 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2024-11-09 12:17:39,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 12:17:39,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-09 12:17:39,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:17:39,817 INFO L225 Difference]: With dead ends: 119 [2024-11-09 12:17:39,817 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 12:17:39,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-09 12:17:39,820 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 40 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:17:39,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 446 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:17:39,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 12:17:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2024-11-09 12:17:39,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 95 states have internal predecessors, (104), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (18), 15 states have call predecessors, (18), 15 states have call successors, (18) [2024-11-09 12:17:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2024-11-09 12:17:39,844 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 29 [2024-11-09 12:17:39,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:17:39,844 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2024-11-09 12:17:39,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:17:39,845 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2024-11-09 12:17:39,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 12:17:39,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:17:39,847 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:17:39,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 12:17:39,848 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_31_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 12:17:39,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:17:39,848 INFO L85 PathProgramCache]: Analyzing trace with hash 325025802, now seen corresponding path program 1 times [2024-11-09 12:17:39,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:17:39,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791684717] [2024-11-09 12:17:39,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:39,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:17:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:17:39,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982315986] [2024-11-09 12:17:39,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:39,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:17:39,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:17:39,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:17:39,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 12:17:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 12:17:40,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 12:17:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 12:17:40,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 12:17:40,078 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 12:17:40,079 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_31_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-09 12:17:40,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-09 12:17:40,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-09 12:17:40,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-09 12:17:40,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-09 12:17:40,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-09 12:17:40,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-09 12:17:40,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-09 12:17:40,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-09 12:17:40,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-09 12:17:40,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-09 12:17:40,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-09 12:17:40,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-09 12:17:40,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-09 12:17:40,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-09 12:17:40,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-09 12:17:40,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-09 12:17:40,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-09 12:17:40,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-09 12:17:40,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-09 12:17:40,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-09 12:17:40,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-09 12:17:40,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-09 12:17:40,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-09 12:17:40,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 12:17:40,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:17:40,289 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 12:17:40,331 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 12:17:40,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:17:40 BoogieIcfgContainer [2024-11-09 12:17:40,334 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 12:17:40,335 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 12:17:40,335 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 12:17:40,335 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 12:17:40,336 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:17:35" (3/4) ... [2024-11-09 12:17:40,338 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 12:17:40,425 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 12:17:40,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 12:17:40,426 INFO L158 Benchmark]: Toolchain (without parser) took 5646.42ms. Allocated memory was 125.8MB in the beginning and 237.0MB in the end (delta: 111.1MB). Free memory was 54.5MB in the beginning and 147.1MB in the end (delta: -92.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-09 12:17:40,426 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory was 87.4MB in the beginning and 87.2MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 12:17:40,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.37ms. Allocated memory was 125.8MB in the beginning and 197.1MB in the end (delta: 71.3MB). Free memory was 54.2MB in the beginning and 160.1MB in the end (delta: -105.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-11-09 12:17:40,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.68ms. Allocated memory is still 197.1MB. Free memory was 159.3MB in the beginning and 158.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 12:17:40,427 INFO L158 Benchmark]: Boogie Preprocessor took 69.15ms. Allocated memory is still 197.1MB. Free memory was 158.0MB in the beginning and 155.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 12:17:40,427 INFO L158 Benchmark]: RCFGBuilder took 659.20ms. Allocated memory is still 197.1MB. Free memory was 155.1MB in the beginning and 130.8MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 12:17:40,427 INFO L158 Benchmark]: TraceAbstraction took 4386.74ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 129.9MB in the beginning and 151.3MB in the end (delta: -21.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-11-09 12:17:40,427 INFO L158 Benchmark]: Witness Printer took 90.13ms. Allocated memory is still 237.0MB. Free memory was 150.3MB in the beginning and 147.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 12:17:40,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory was 87.4MB in the beginning and 87.2MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.37ms. Allocated memory was 125.8MB in the beginning and 197.1MB in the end (delta: 71.3MB). Free memory was 54.2MB in the beginning and 160.1MB in the end (delta: -105.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.68ms. Allocated memory is still 197.1MB. Free memory was 159.3MB in the beginning and 158.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.15ms. Allocated memory is still 197.1MB. Free memory was 158.0MB in the beginning and 155.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 659.20ms. Allocated memory is still 197.1MB. Free memory was 155.1MB in the beginning and 130.8MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4386.74ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 129.9MB in the beginning and 151.3MB in the end (delta: -21.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 90.13ms. Allocated memory is still 237.0MB. Free memory was 150.3MB in the beginning and 147.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 98]: integer overflow possible integer overflow possible We found a FailurePath: [L110] int A; [L111] int B; [L112] int r; [L113] int d; [L114] int p; [L115] int q; [L116] A = __VERIFIER_nondet_int() [L117] B = __VERIFIER_nondet_int() [L118] EXPR \read(B) [L118] CALL assume_abort_if_not(B >= 1) [L26] COND FALSE !(!cond) [L118] RET assume_abort_if_not(B >= 1) [L119] EXPR \read(A) [L119] r = A [L120] EXPR \read(B) [L120] d = B [L121] p = 1 [L122] q = 0 [L123] CALL func_to_recursive_line_31_to_38_0(&q, &B, &d, &A, &r, &p) VAL [\old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}] [L88] EXPR \read(*q) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L88] CALL __VERIFIER_assert((*q) == 0) VAL [\old(cond)=1] [L37] COND FALSE !(!cond) VAL [\old(cond)=1] [L88] RET __VERIFIER_assert((*q) == 0) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L89] EXPR \read(*r) [L89] EXPR \read(*A) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L89] CALL __VERIFIER_assert((*r) == (*A)) VAL [\old(cond)=1] [L37] COND FALSE !(!cond) VAL [\old(cond)=1] [L89] RET __VERIFIER_assert((*r) == (*A)) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L90] EXPR \read(*d) [L90] EXPR \read(*B) [L90] EXPR \read(*p) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L90] EXPR (*B) * (*p) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L90] CALL __VERIFIER_assert((*d) == ((*B) * (*p))) VAL [\old(cond)=1] [L37] COND FALSE !(!cond) VAL [\old(cond)=1] [L90] RET __VERIFIER_assert((*d) == ((*B) * (*p))) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L91] EXPR \read(*r) [L91] EXPR \read(*d) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L91] COND FALSE !(!((*r) >= (*d))) [L98] EXPR \read(*d) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] [L98] 2 * (*d) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={9:0}, \old(p)={7:0}, \old(q)={5:0}, \old(r)={8:0}, d={9:0}, p={7:0}, q={5:0}, r={8:0}] - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: 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: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: 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: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 98]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 99]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 99]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: 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 4 procedures, 91 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 1376 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1071 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 394 IncrementalHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 305 mSDtfsCounter, 394 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 31 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 69 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 79 ConstructedInterpolants, 16 QuantifiedInterpolants, 677 SizeOfPredicates, 22 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 20/20 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! [2024-11-09 12:17:40,468 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)