./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:56:36,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:56:36,497 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:56:36,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:56:36,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:56:36,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:56:36,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:56:36,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:56:36,539 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:56:36,539 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:56:36,540 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:56:36,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:56:36,541 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:56:36,541 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:56:36,542 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:56:36,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:56:36,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:56:36,543 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:56:36,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:56:36,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:56:36,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:56:36,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:56:36,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:56:36,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:56:36,544 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:56:36,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:56:36,544 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:56:36,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:56:36,544 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:56:36,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:56:36,545 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:56:36,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:36,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:36,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:36,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:36,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:56:36,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:36,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:36,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:36,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:36,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:56:36,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:56:36,546 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:56:36,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:56:36,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:56:36,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:56:36,547 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:56:36,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:56:36,547 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:56:36,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:56:36,547 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_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2024-11-28 02:56:36,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:56:36,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:56:36,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:56:36,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:56:36,884 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:56:36,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-28 02:56:39,795 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data/985090f07/56d6980d58384b6c92ff7c924ae71d22/FLAGbbee64e04 [2024-11-28 02:56:40,040 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:56:40,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-28 02:56:40,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data/985090f07/56d6980d58384b6c92ff7c924ae71d22/FLAGbbee64e04 [2024-11-28 02:56:40,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data/985090f07/56d6980d58384b6c92ff7c924ae71d22 [2024-11-28 02:56:40,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:56:40,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:56:40,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:40,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:56:40,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:56:40,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6435f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40, skipping insertion in model container [2024-11-28 02:56:40,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:56:40,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:40,615 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:56:40,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:40,667 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:56:40,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40 WrapperNode [2024-11-28 02:56:40,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:40,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:40,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:56:40,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:56:40,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,713 INFO L138 Inliner]: procedures = 16, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-28 02:56:40,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:40,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:56:40,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:56:40,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:56:40,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,745 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 5, 8, 5, 4, 5]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 2, 3, 2, 1, 1]. [2024-11-28 02:56:40,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,753 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:56:40,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:56:40,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:56:40,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:56:40,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (1/1) ... [2024-11-28 02:56:40,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:40,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:40,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:40,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:56:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:56:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:56:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:56:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:56:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:56:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:56:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:56:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:56:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:56:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:56:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:56:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:56:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:56:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:56:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:56:40,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:56:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:56:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:56:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:56:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:56:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:56:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:56:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:56:40,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:56:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2024-11-28 02:56:40,841 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2024-11-28 02:56:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:56:40,959 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:56:40,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:56:41,325 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-28 02:56:41,325 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:56:41,340 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:56:41,342 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:56:41,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:41 BoogieIcfgContainer [2024-11-28 02:56:41,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:56:41,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:56:41,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:56:41,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:56:41,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:40" (1/3) ... [2024-11-28 02:56:41,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be87df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:41, skipping insertion in model container [2024-11-28 02:56:41,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:40" (2/3) ... [2024-11-28 02:56:41,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be87df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:41, skipping insertion in model container [2024-11-28 02:56:41,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:41" (3/3) ... [2024-11-28 02:56:41,357 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2024-11-28 02:56:41,375 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:56:41,377 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_prodbin.c that has 3 procedures, 59 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2024-11-28 02:56:41,452 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:56:41,471 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;@59f73ac2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:56:41,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-28 02:56:41,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 02:56:41,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:56:41,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:41,485 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:41,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-28 02:56:41,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:41,493 INFO L85 PathProgramCache]: Analyzing trace with hash 121515862, now seen corresponding path program 1 times [2024-11-28 02:56:41,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:41,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704682752] [2024-11-28 02:56:41,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:41,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:41,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:41,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704682752] [2024-11-28 02:56:41,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704682752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:41,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:41,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:56:41,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920044710] [2024-11-28 02:56:41,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:41,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:56:41,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:41,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:56:41,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:56:41,734 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:41,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:41,764 INFO L93 Difference]: Finished difference Result 114 states and 129 transitions. [2024-11-28 02:56:41,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:56:41,767 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 02:56:41,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:41,776 INFO L225 Difference]: With dead ends: 114 [2024-11-28 02:56:41,776 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 02:56:41,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:56:41,786 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:41,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:56:41,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 02:56:41,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-28 02:56:41,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 47 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:56:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2024-11-28 02:56:41,840 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 8 [2024-11-28 02:56:41,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:41,840 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2024-11-28 02:56:41,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:41,840 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2024-11-28 02:56:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:56:41,841 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:41,841 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:41,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:56:41,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-28 02:56:41,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:41,842 INFO L85 PathProgramCache]: Analyzing trace with hash 178774164, now seen corresponding path program 1 times [2024-11-28 02:56:41,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:41,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016780447] [2024-11-28 02:56:41,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:41,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:56:41,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530435785] [2024-11-28 02:56:41,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:41,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:41,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:41,986 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:41,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:56:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:42,127 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:56:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:42,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:56:42,191 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:56:42,192 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-28 02:56:42,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-28 02:56:42,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-28 02:56:42,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-28 02:56:42,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-28 02:56:42,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-28 02:56:42,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-28 02:56:42,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-28 02:56:42,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-28 02:56:42,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-28 02:56:42,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-28 02:56:42,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-28 02:56:42,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-28 02:56:42,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-28 02:56:42,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-28 02:56:42,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-28 02:56:42,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:42,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:42,407 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 02:56:42,447 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:56:42,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:42 BoogieIcfgContainer [2024-11-28 02:56:42,450 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:56:42,451 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:56:42,453 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:56:42,453 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:56:42,454 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:41" (3/4) ... [2024-11-28 02:56:42,458 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:56:42,459 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:56:42,460 INFO L158 Benchmark]: Toolchain (without parser) took 2076.33ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 77.2MB in the end (delta: 14.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,463 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:42,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.65ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 80.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.41ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:42,464 INFO L158 Benchmark]: Boogie Preprocessor took 46.94ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,465 INFO L158 Benchmark]: RCFGBuilder took 581.60ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 60.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,465 INFO L158 Benchmark]: TraceAbstraction took 1104.80ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 77.2MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:42,466 INFO L158 Benchmark]: Witness Printer took 8.28ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 77.2MB in the end (delta: 14.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:42,469 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.65ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 80.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.41ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.94ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 581.60ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 60.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1104.80ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 77.2MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.28ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 77.2MB in the end (delta: 14.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 87. Possible FailurePath: [L82] int a; [L83] int b; [L84] int x; [L85] int y; [L86] int z; [L87] a = __VERIFIER_nondet_double() [L88] b = __VERIFIER_nondet_double() [L89] EXPR \read(b) [L89] CALL assume_abort_if_not(b >= 1) [L24] COND FALSE !(!cond) [L89] RET assume_abort_if_not(b >= 1) [L90] EXPR \read(a) [L90] x = a [L91] EXPR \read(b) [L91] y = b [L92] z = 0 [L93] CALL func_to_recursive_line_30_to_40_0(&a, &b, &z, &x, &y) VAL [\old(a)={4:0}, \old(b)={5:0}, \old(x)={9:0}, \old(y)={10:0}, \old(z)={8:0}] [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [\old(a)={4:0}, \old(b)={5:0}, \old(x)={9:0}, \old(y)={10:0}, \old(z)={8:0}, a={4:0}, b={5:0}, x={9:0}, y={10:0}, z={8:0}] [L54] (*x) * (*y) VAL [\old(a)={4:0}, \old(b)={5:0}, \old(x)={9:0}, \old(y)={10:0}, \old(z)={8:0}, a={4:0}, b={5:0}, x={9:0}, y={10:0}, z={8:0}] - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 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: 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: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 61 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 02:56:42,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:56:45,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:56:45,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-28 02:56:45,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:56:45,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:56:45,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:56:45,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:56:45,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:56:45,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:56:45,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:56:45,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:56:45,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:56:45,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:56:45,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:56:45,710 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:56:45,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:56:45,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:56:45,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:56:45,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:56:45,711 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:56:45,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:56:45,712 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:56:45,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:56:45,712 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:56:45,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:45,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:45,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:45,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:45,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:56:45,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:45,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:45,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:45,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:45,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:56:45,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:56:45,714 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:56:45,714 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:56:45,714 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:56:45,714 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:56:45,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:56:45,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:56:45,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:56:45,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:56:45,715 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_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2024-11-28 02:56:46,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:56:46,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:56:46,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:56:46,117 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:56:46,117 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:56:46,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-28 02:56:49,300 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data/110a2a8ca/7e7a2de9c99d4077ae72d31d91cf798e/FLAG273ef5221 [2024-11-28 02:56:49,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:56:49,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2024-11-28 02:56:49,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data/110a2a8ca/7e7a2de9c99d4077ae72d31d91cf798e/FLAG273ef5221 [2024-11-28 02:56:49,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/data/110a2a8ca/7e7a2de9c99d4077ae72d31d91cf798e [2024-11-28 02:56:49,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:56:49,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:56:49,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:49,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:56:49,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:56:49,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c39a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49, skipping insertion in model container [2024-11-28 02:56:49,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:56:49,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:49,905 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:56:49,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:49,963 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:56:49,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49 WrapperNode [2024-11-28 02:56:49,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:49,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:49,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:56:49,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:56:49,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:49,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,012 INFO L138 Inliner]: procedures = 19, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-28 02:56:50,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:50,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:56:50,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:56:50,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:56:50,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,032 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,058 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 4, 5, 8, 5, 5]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 1, 3, 2, 2]. [2024-11-28 02:56:50,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,069 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,070 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:56:50,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:56:50,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:56:50,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:56:50,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (1/1) ... [2024-11-28 02:56:50,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:50,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:50,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:50,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:56:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:56:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:56:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:56:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:56:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 02:56:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 02:56:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-28 02:56:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:56:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:56:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:56:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:56:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 02:56:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 02:56:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-28 02:56:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:56:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:56:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2024-11-28 02:56:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-28 02:56:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-28 02:56:50,321 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:56:50,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:56:51,873 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-11-28 02:56:51,874 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:56:51,889 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:56:51,889 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:56:51,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:51 BoogieIcfgContainer [2024-11-28 02:56:51,890 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:56:51,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:56:51,893 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:56:51,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:56:51,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:49" (1/3) ... [2024-11-28 02:56:51,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f266bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:51, skipping insertion in model container [2024-11-28 02:56:51,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:49" (2/3) ... [2024-11-28 02:56:51,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f266bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:51, skipping insertion in model container [2024-11-28 02:56:51,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:51" (3/3) ... [2024-11-28 02:56:51,905 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2024-11-28 02:56:51,923 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:56:51,924 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_prodbin.c that has 3 procedures, 59 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2024-11-28 02:56:51,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:56:52,032 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;@1297e8dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:56:52,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-28 02:56:52,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 02:56:52,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:56:52,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:52,045 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:52,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-28 02:56:52,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:52,053 INFO L85 PathProgramCache]: Analyzing trace with hash 121515862, now seen corresponding path program 1 times [2024-11-28 02:56:52,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:56:52,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077747852] [2024-11-28 02:56:52,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:52,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:56:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:56:52,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:56:52,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 02:56:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:52,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:56:52,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:52,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:56:52,323 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:56:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077747852] [2024-11-28 02:56:52,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077747852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:52,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:52,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:56:52,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902783162] [2024-11-28 02:56:52,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:52,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:56:52,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:56:52,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:56:52,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:56:52,363 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:52,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:52,398 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2024-11-28 02:56:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:56:52,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 02:56:52,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:52,411 INFO L225 Difference]: With dead ends: 111 [2024-11-28 02:56:52,412 INFO L226 Difference]: Without dead ends: 49 [2024-11-28 02:56:52,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:56:52,422 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:52,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:56:52,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-28 02:56:52,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-28 02:56:52,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 44 states have internal predecessors, (45), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:56:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2024-11-28 02:56:52,481 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 8 [2024-11-28 02:56:52,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:52,483 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2024-11-28 02:56:52,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:52,483 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2024-11-28 02:56:52,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:56:52,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:52,484 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:52,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:52,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:56:52,689 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-28 02:56:52,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:52,690 INFO L85 PathProgramCache]: Analyzing trace with hash 178774164, now seen corresponding path program 1 times [2024-11-28 02:56:52,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:56:52,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720120938] [2024-11-28 02:56:52,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:52,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:56:52,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:56:52,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:56:52,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 02:56:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:52,986 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:56:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:53,197 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 02:56:53,197 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:56:53,199 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-28 02:56:53,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-28 02:56:53,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-28 02:56:53,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-28 02:56:53,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-28 02:56:53,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-28 02:56:53,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-28 02:56:53,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-28 02:56:53,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-28 02:56:53,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-28 02:56:53,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-28 02:56:53,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-28 02:56:53,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-28 02:56:53,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-28 02:56:53,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-28 02:56:53,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-28 02:56:53,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 02:56:53,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:56:53,408 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 02:56:53,430 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:56:53,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:53 BoogieIcfgContainer [2024-11-28 02:56:53,433 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:56:53,434 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:56:53,434 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:56:53,434 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:56:53,435 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:51" (3/4) ... [2024-11-28 02:56:53,436 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 02:56:53,490 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-11-28 02:56:53,547 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:56:53,550 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:56:53,551 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:56:53,551 INFO L158 Benchmark]: Toolchain (without parser) took 3926.24ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 29.6MB in the end (delta: 30.8MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2024-11-28 02:56:53,553 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:53,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.01ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 48.5MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:56:53,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.27ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:53,554 INFO L158 Benchmark]: Boogie Preprocessor took 63.63ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 44.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:56:53,556 INFO L158 Benchmark]: RCFGBuilder took 1810.48ms. Allocated memory is still 83.9MB. Free memory was 44.9MB in the beginning and 27.3MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:56:53,556 INFO L158 Benchmark]: TraceAbstraction took 1540.48ms. Allocated memory is still 83.9MB. Free memory was 26.7MB in the beginning and 34.5MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:53,556 INFO L158 Benchmark]: Witness Printer took 116.88ms. Allocated memory is still 83.9MB. Free memory was 34.0MB in the beginning and 29.6MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:53,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.01ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 48.5MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.27ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.63ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 44.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1810.48ms. Allocated memory is still 83.9MB. Free memory was 44.9MB in the beginning and 27.3MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1540.48ms. Allocated memory is still 83.9MB. Free memory was 26.7MB in the beginning and 34.5MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 116.88ms. Allocated memory is still 83.9MB. Free memory was 34.0MB in the beginning and 29.6MB in the end (delta: 4.3MB). 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: 54]: integer overflow possible integer overflow possible We found a FailurePath: [L82] int a; [L83] int b; [L84] int x; [L85] int y; [L86] int z; [L87] a = __VERIFIER_nondet_double() [L88] b = __VERIFIER_nondet_double() [L89] EXPR \read(b) [L89] CALL assume_abort_if_not(b >= 1) [L24] COND FALSE !(!cond) [L89] RET assume_abort_if_not(b >= 1) [L90] EXPR \read(a) [L90] x = a [L91] EXPR \read(b) [L91] y = b [L92] z = 0 [L93] CALL func_to_recursive_line_30_to_40_0(&a, &b, &z, &x, &y) VAL [\old(a)={15:0}, \old(b)={5:0}, \old(x)={4:0}, \old(y)={7:0}, \old(z)={6:0}] [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [\old(a)={15:0}, \old(b)={5:0}, \old(x)={4:0}, \old(y)={7:0}, \old(z)={6:0}, a={15:0}, b={5:0}, x={4:0}, y={7:0}, z={6:0}] [L54] (*x) * (*y) VAL [\old(a)={15:0}, \old(b)={5:0}, \old(x)={4:0}, \old(y)={7:0}, \old(z)={6:0}, a={15:0}, b={5:0}, x={4:0}, y={7:0}, z={6:0}] - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 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: 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: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 58 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:56:53,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27542504-388f-4755-a98a-2ed94b8ac3a5/bin/uautomizer-verify-aQ6SnzHsRB/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)