./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd --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 0.3.0-dev-826ab2b [2024-11-13 16:17:57,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:17:58,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 16:17:58,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:17:58,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:17:58,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:17:58,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:17:58,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:17:58,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:17:58,142 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:17:58,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:17:58,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:17:58,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:17:58,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:17:58,144 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:17:58,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:17:58,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:17:58,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:17:58,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:17:58,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:17:58,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:17:58,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:17:58,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:17:58,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:17:58,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:17:58,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:17:58,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:17:58,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:17:58,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:17:58,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:17:58,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:17:58,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:17:58,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:17:58,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:17:58,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:17:58,151 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd 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 [2024-11-13 16:17:58,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:17:58,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:17:58,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:17:58,572 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:17:58,572 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:17:58,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c Unable to find full path for "g++" [2024-11-13 16:18:00,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:18:00,877 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:18:00,877 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2024-11-13 16:18:00,885 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/data/97e7beeae/19008f0d3f8441e398696e258f50ca4e/FLAG51dc3e0ac [2024-11-13 16:18:00,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/data/97e7beeae/19008f0d3f8441e398696e258f50ca4e [2024-11-13 16:18:00,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:18:00,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:18:00,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:18:00,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:18:00,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:18:00,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:18:00" (1/1) ... [2024-11-13 16:18:00,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d7cd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:00, skipping insertion in model container [2024-11-13 16:18:00,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:18:00" (1/1) ... [2024-11-13 16:18:00,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:18:01,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:18:01,107 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:18:01,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:18:01,153 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:18:01,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01 WrapperNode [2024-11-13 16:18:01,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:18:01,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:18:01,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:18:01,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:18:01,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,197 INFO L138 Inliner]: procedures = 17, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-11-13 16:18:01,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:18:01,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:18:01,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:18:01,198 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:18:01,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,228 INFO L175 MemorySlicer]: Split 56 memory accesses to 8 slices as follows [2, 6, 5, 7, 9, 12, 7, 8]. 21 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 0, 0, 7, 0, 0, 0, 0]. The 12 writes are split as follows [0, 2, 1, 0, 3, 3, 1, 2]. [2024-11-13 16:18:01,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:18:01,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:18:01,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:18:01,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:18:01,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (1/1) ... [2024-11-13 16:18:01,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:18:01,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:18:01,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:18:01,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:18:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:18:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:18:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:18:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:18:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_41_to_51_0 [2024-11-13 16:18:01,310 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_41_to_51_0 [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_38_0 [2024-11-13 16:18:01,310 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_38_0 [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:18:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:18:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:18:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:18:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:18:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 16:18:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 16:18:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 16:18:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 16:18:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-13 16:18:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:18:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:18:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:18:01,440 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:18:01,442 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:18:01,996 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-13 16:18:01,996 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:18:02,008 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:18:02,008 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 16:18:02,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:02 BoogieIcfgContainer [2024-11-13 16:18:02,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:18:02,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:18:02,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:18:02,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:18:02,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:18:00" (1/3) ... [2024-11-13 16:18:02,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526a012e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:18:02, skipping insertion in model container [2024-11-13 16:18:02,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:01" (2/3) ... [2024-11-13 16:18:02,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526a012e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:18:02, skipping insertion in model container [2024-11-13 16:18:02,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:02" (3/3) ... [2024-11-13 16:18:02,017 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_hard.c [2024-11-13 16:18:02,034 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:18:02,035 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_hard.c that has 4 procedures, 91 locations, 1 initial locations, 0 loop locations, and 24 error locations. [2024-11-13 16:18:02,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:18:02,145 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;@7eb76721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:18:02,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-13 16:18:02,151 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) [2024-11-13 16:18:02,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 16:18:02,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:18:02,160 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:18:02,160 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)] === [2024-11-13 16:18:02,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:18:02,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1724308564, now seen corresponding path program 1 times [2024-11-13 16:18:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:18:02,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061848028] [2024-11-13 16:18:02,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:02,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:18:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:18:02,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:18:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:18:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:18:02,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:18:02,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061848028] [2024-11-13 16:18:02,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061848028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:18:02,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:18:02,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:18:02,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075109736] [2024-11-13 16:18:02,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:18:02,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:18:02,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:18:02,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:18:02,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:18:02,570 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) [2024-11-13 16:18:02,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:18:02,815 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2024-11-13 16:18:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:18:02,818 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 [2024-11-13 16:18:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:18:02,826 INFO L225 Difference]: With dead ends: 182 [2024-11-13 16:18:02,827 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 16:18:02,831 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 [2024-11-13 16:18:02,835 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:18:02,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 113 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:18:02,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 16:18:02,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2024-11-13 16:18:02,894 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) [2024-11-13 16:18:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2024-11-13 16:18:02,906 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 13 [2024-11-13 16:18:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:18:02,906 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2024-11-13 16:18:02,907 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) [2024-11-13 16:18:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2024-11-13 16:18:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 16:18:02,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:18:02,909 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:18:02,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:18:02,910 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)] === [2024-11-13 16:18:02,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:18:02,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1785624201, now seen corresponding path program 1 times [2024-11-13 16:18:02,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:18:02,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770565594] [2024-11-13 16:18:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:02,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:18:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:18:03,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011402165] [2024-11-13 16:18:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:03,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:18:03,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:18:03,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:18:03,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:18:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:18:03,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 16:18:03,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:18:03,385 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 [2024-11-13 16:18:03,454 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 [2024-11-13 16:18:03,837 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 [2024-11-13 16:18:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:18:03,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:18:03,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:18:03,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770565594] [2024-11-13 16:18:03,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:18:03,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011402165] [2024-11-13 16:18:03,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011402165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:18:03,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:18:03,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:18:03,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866765890] [2024-11-13 16:18:03,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:18:03,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:18:03,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:18:03,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:18:03,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:18:03,876 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) [2024-11-13 16:18:04,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:18:04,317 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2024-11-13 16:18:04,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:18:04,318 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 [2024-11-13 16:18:04,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:18:04,320 INFO L225 Difference]: With dead ends: 148 [2024-11-13 16:18:04,320 INFO L226 Difference]: Without dead ends: 147 [2024-11-13 16:18:04,321 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 [2024-11-13 16:18:04,322 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 90 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:18:04,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 436 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:18:04,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-13 16:18:04,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 115. [2024-11-13 16:18:04,347 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) [2024-11-13 16:18:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 137 transitions. [2024-11-13 16:18:04,349 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 137 transitions. Word has length 20 [2024-11-13 16:18:04,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:18:04,350 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 137 transitions. [2024-11-13 16:18:04,350 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) [2024-11-13 16:18:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 137 transitions. [2024-11-13 16:18:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 16:18:04,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:18:04,351 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:18:04,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:18:04,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-13 16:18:04,552 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)] === [2024-11-13 16:18:04,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:18:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash -480224525, now seen corresponding path program 1 times [2024-11-13 16:18:04,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:18:04,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179672157] [2024-11-13 16:18:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:04,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:18:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:18:04,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792599009] [2024-11-13 16:18:04,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:04,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:18:04,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:18:04,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:18:04,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:18:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:18:04,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 16:18:04,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:18:04,897 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 [2024-11-13 16:18:04,969 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 [2024-11-13 16:18:05,379 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 22 treesize of output 10 [2024-11-13 16:18:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:18:05,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:18:05,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:18:05,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179672157] [2024-11-13 16:18:05,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:18:05,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792599009] [2024-11-13 16:18:05,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792599009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:18:05,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:18:05,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:18:05,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012725162] [2024-11-13 16:18:05,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:18:05,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:18:05,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:18:05,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:18:05,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:18:05,414 INFO L87 Difference]: Start difference. First operand 115 states and 137 transitions. Second operand has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 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) [2024-11-13 16:18:05,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:18:05,835 INFO L93 Difference]: Finished difference Result 147 states and 161 transitions. [2024-11-13 16:18:05,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:18:05,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 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 [2024-11-13 16:18:05,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:18:05,838 INFO L225 Difference]: With dead ends: 147 [2024-11-13 16:18:05,838 INFO L226 Difference]: Without dead ends: 146 [2024-11-13 16:18:05,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:18:05,839 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 87 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:18:05,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 491 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:18:05,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-13 16:18:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2024-11-13 16:18:05,865 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) [2024-11-13 16:18:05,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2024-11-13 16:18:05,868 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 21 [2024-11-13 16:18:05,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:18:05,869 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2024-11-13 16:18:05,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 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) [2024-11-13 16:18:05,869 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2024-11-13 16:18:05,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 16:18:05,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:18:05,870 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] [2024-11-13 16:18:05,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:18:06,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:18:06,071 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)] === [2024-11-13 16:18:06,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:18:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash 10484700, now seen corresponding path program 1 times [2024-11-13 16:18:06,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:18:06,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106317904] [2024-11-13 16:18:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:06,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:18:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:18:06,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:18:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:18:06,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 16:18:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:18:06,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:18:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:18:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 16:18:06,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:18:06,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106317904] [2024-11-13 16:18:06,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106317904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:18:06,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:18:06,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:18:06,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165914608] [2024-11-13 16:18:06,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:18:06,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:18:06,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:18:06,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:18:06,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:18:06,866 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) [2024-11-13 16:18:07,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:18:07,060 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2024-11-13 16:18:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:18:07,062 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 [2024-11-13 16:18:07,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:18:07,063 INFO L225 Difference]: With dead ends: 119 [2024-11-13 16:18:07,063 INFO L226 Difference]: Without dead ends: 118 [2024-11-13 16:18:07,064 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 [2024-11-13 16:18:07,065 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 [2024-11-13 16:18:07,065 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] [2024-11-13 16:18:07,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-13 16:18:07,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2024-11-13 16:18:07,089 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) [2024-11-13 16:18:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2024-11-13 16:18:07,093 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 29 [2024-11-13 16:18:07,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:18:07,093 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2024-11-13 16:18:07,093 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) [2024-11-13 16:18:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2024-11-13 16:18:07,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 16:18:07,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:18:07,094 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] [2024-11-13 16:18:07,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:18:07,095 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)] === [2024-11-13 16:18:07,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:18:07,095 INFO L85 PathProgramCache]: Analyzing trace with hash 325025802, now seen corresponding path program 1 times [2024-11-13 16:18:07,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:18:07,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757132952] [2024-11-13 16:18:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:18:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:18:07,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017355453] [2024-11-13 16:18:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:07,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:18:07,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:18:07,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:18:07,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:18:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:18:07,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:18:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:18:07,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:18:07,366 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:18:07,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_31_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-13 16:18:07,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-13 16:18:07,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-13 16:18:07,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-13 16:18:07,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-13 16:18:07,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-13 16:18:07,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-13 16:18:07,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-13 16:18:07,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 16:18:07,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:18:07,578 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 16:18:07,624 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:18:07,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:18:07 BoogieIcfgContainer [2024-11-13 16:18:07,628 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:18:07,629 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:18:07,629 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:18:07,629 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:18:07,630 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:02" (3/4) ... [2024-11-13 16:18:07,630 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 16:18:07,674 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:18:07,674 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:18:07,675 INFO L158 Benchmark]: Toolchain (without parser) took 6770.92ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 68.1MB in the end (delta: 50.9MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2024-11-13 16:18:07,675 INFO L158 Benchmark]: CDTParser took 1.46ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:07,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.29ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 107.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:18:07,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.24ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 105.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:07,676 INFO L158 Benchmark]: Boogie Preprocessor took 45.85ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:18:07,676 INFO L158 Benchmark]: RCFGBuilder took 763.71ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 81.1MB in the end (delta: 22.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:18:07,676 INFO L158 Benchmark]: TraceAbstraction took 5617.51ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 72.0MB in the end (delta: 8.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-11-13 16:18:07,676 INFO L158 Benchmark]: Witness Printer took 45.17ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 68.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:07,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.46ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.29ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 107.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.24ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 105.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.85ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 763.71ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 81.1MB in the end (delta: 22.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5617.51ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 72.0MB in the end (delta: 8.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Witness Printer took 45.17ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 68.1MB in the end (delta: 2.6MB). 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 - 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)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}] [L88] EXPR \read(*q) VAL [A={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, 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={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, r={8:0}] [L89] EXPR \read(*r) [L89] EXPR \read(*A) VAL [A={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, 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={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, r={8:0}] [L90] EXPR \read(*d) [L90] EXPR \read(*B) [L90] EXPR \read(*p) VAL [A={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, r={8:0}] [L90] EXPR (*B) * (*p) VAL [A={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, 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={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, r={8:0}] [L91] EXPR \read(*r) [L91] EXPR \read(*d) VAL [A={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, r={8:0}] [L91] COND FALSE !(!((*r) >= (*d))) [L98] EXPR \read(*d) VAL [A={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, r={8:0}] [L98] 2 * (*d) VAL [A={6:0}, B={7:0}, \old(A)={6:0}, \old(B)={7:0}, \old(d)={4:0}, \old(p)={5:0}, \old(q)={9:0}, \old(r)={8:0}, d={4:0}, p={5:0}, q={9:0}, 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: 5.5s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 1486 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1182 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 454 IncrementalHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 304 mSDtfsCounter, 454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, InterpolantAutomatonStates: 32, 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, 2.1s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 79 ConstructedInterpolants, 16 QuantifiedInterpolants, 820 SizeOfPredicates, 22 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 64 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! [2024-11-13 16:18:07,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627b8920-a833-47d0-a005-e7fbc4646906/bin/uautomizer-verify-qhAvR1uOyd/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)