./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:11:56,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:11:56,665 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:11:56,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:11:56,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:11:56,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:11:56,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:11:56,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:11:56,693 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:11:56,693 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:11:56,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:11:56,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:11:56,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:11:56,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:11:56,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:11:56,695 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:11:56,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:56,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:56,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:11:56,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:11:56,697 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:11:56,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:11:56,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:11:56,697 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_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1 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 ! call(reach_error())) ) 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 -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-12-02 08:11:56,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:11:56,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:11:56,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:11:56,943 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:11:56,943 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:11:56,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c [2024-12-02 08:11:59,566 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/data/42abe781d/2a3f0f56b66c44c993fb8f4b483a3d2b/FLAG8ebad1b2a [2024-12-02 08:11:59,781 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:11:59,782 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c [2024-12-02 08:11:59,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/data/42abe781d/2a3f0f56b66c44c993fb8f4b483a3d2b/FLAG8ebad1b2a [2024-12-02 08:11:59,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/data/42abe781d/2a3f0f56b66c44c993fb8f4b483a3d2b [2024-12-02 08:11:59,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:11:59,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:11:59,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:11:59,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:11:59,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:11:59,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:11:59" (1/1) ... [2024-12-02 08:11:59,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cdcbce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:59, skipping insertion in model container [2024-12-02 08:11:59,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:11:59" (1/1) ... [2024-12-02 08:11:59,827 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:11:59,968 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c[573,586] [2024-12-02 08:11:59,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:11:59,995 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:12:00,007 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c[573,586] [2024-12-02 08:12:00,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:12:00,028 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:12:00,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00 WrapperNode [2024-12-02 08:12:00,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:12:00,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:12:00,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:12:00,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:12:00,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,061 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-12-02 08:12:00,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:12:00,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:12:00,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:12:00,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:12:00,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,082 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:12:00,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,085 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:12:00,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:12:00,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:12:00,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:12:00,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (1/1) ... [2024-12-02 08:12:00,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:12:00,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:12:00,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:12:00,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:12:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:12:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:12:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:12:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:12:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:12:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:12:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 08:12:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 08:12:00,197 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:12:00,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:12:00,304 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-02 08:12:00,304 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:12:00,313 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:12:00,313 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:12:00,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:12:00 BoogieIcfgContainer [2024-12-02 08:12:00,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:12:00,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:12:00,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:12:00,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:12:00,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:11:59" (1/3) ... [2024-12-02 08:12:00,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd026a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:12:00, skipping insertion in model container [2024-12-02 08:12:00,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:00" (2/3) ... [2024-12-02 08:12:00,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd026a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:12:00, skipping insertion in model container [2024-12-02 08:12:00,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:12:00" (3/3) ... [2024-12-02 08:12:00,323 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound50.c [2024-12-02 08:12:00,336 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:12:00,337 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_valuebound50.c that has 3 procedures, 23 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:12:00,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:12:00,392 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;@136785f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:12:00,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:12:00,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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) [2024-12-02 08:12:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 08:12:00,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:00,401 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:00,401 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:00,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:00,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1198649393, now seen corresponding path program 1 times [2024-12-02 08:12:00,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:00,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468324663] [2024-12-02 08:12:00,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:00,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:12:00,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:00,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468324663] [2024-12-02 08:12:00,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468324663] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:12:00,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011780599] [2024-12-02 08:12:00,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:00,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:00,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:12:00,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:12:00,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:12:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:00,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:12:00,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:12:00,593 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:00,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011780599] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:00,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:12:00,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:12:00,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884070079] [2024-12-02 08:12:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:00,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:12:00,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:00,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:12:00,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:12:00,618 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:12:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:00,633 INFO L93 Difference]: Finished difference Result 43 states and 60 transitions. [2024-12-02 08:12:00,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:12:00,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-12-02 08:12:00,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:00,642 INFO L225 Difference]: With dead ends: 43 [2024-12-02 08:12:00,642 INFO L226 Difference]: Without dead ends: 19 [2024-12-02 08:12:00,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:12:00,648 INFO L435 NwaCegarLoop]: 26 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, 26 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 [2024-12-02 08:12:00,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-12-02 08:12:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-12-02 08:12:00,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 08:12:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2024-12-02 08:12:00,677 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 17 [2024-12-02 08:12:00,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:00,677 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2024-12-02 08:12:00,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:12:00,678 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-02 08:12:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 08:12:00,679 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:00,679 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:00,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:12:00,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:12:00,880 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:00,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:00,880 INFO L85 PathProgramCache]: Analyzing trace with hash -197503247, now seen corresponding path program 1 times [2024-12-02 08:12:00,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:00,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729821024] [2024-12-02 08:12:00,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:00,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:12:00,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477208748] [2024-12-02 08:12:00,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:00,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:00,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:12:00,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:12:00,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:12:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:00,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 08:12:00,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:12:01,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:01,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:01,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729821024] [2024-12-02 08:12:01,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:12:01,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477208748] [2024-12-02 08:12:01,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477208748] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:01,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:01,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:12:01,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681499477] [2024-12-02 08:12:01,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:01,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:12:01,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:01,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:12:01,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:01,013 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:12:01,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:01,059 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2024-12-02 08:12:01,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:12:01,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-12-02 08:12:01,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:01,061 INFO L225 Difference]: With dead ends: 28 [2024-12-02 08:12:01,062 INFO L226 Difference]: Without dead ends: 26 [2024-12-02 08:12:01,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:12:01,063 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:01,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 57 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:01,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-12-02 08:12:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-12-02 08:12:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:12:01,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-12-02 08:12:01,069 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2024-12-02 08:12:01,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:01,070 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-12-02 08:12:01,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:12:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-12-02 08:12:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 08:12:01,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:01,071 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:01,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:12:01,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:01,272 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:01,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:01,272 INFO L85 PathProgramCache]: Analyzing trace with hash -112672871, now seen corresponding path program 1 times [2024-12-02 08:12:01,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:01,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468246984] [2024-12-02 08:12:01,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:01,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:12:01,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468246984] [2024-12-02 08:12:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468246984] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:12:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933907109] [2024-12-02 08:12:01,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:01,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:01,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:12:01,572 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:12:01,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:12:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:01,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 08:12:01,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:12:01,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:01,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933907109] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:01,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:12:01,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:12:01,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858429925] [2024-12-02 08:12:01,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:01,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:12:01,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:01,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:12:01,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:12:01,703 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:12:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:01,755 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2024-12-02 08:12:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:12:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-12-02 08:12:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:01,757 INFO L225 Difference]: With dead ends: 33 [2024-12-02 08:12:01,757 INFO L226 Difference]: Without dead ends: 26 [2024-12-02 08:12:01,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:12:01,758 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:01,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-12-02 08:12:01,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-12-02 08:12:01,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:12:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-12-02 08:12:01,763 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 23 [2024-12-02 08:12:01,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:01,764 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-12-02 08:12:01,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:12:01,764 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-12-02 08:12:01,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 08:12:01,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:01,765 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:01,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:12:01,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:01,965 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:01,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:01,966 INFO L85 PathProgramCache]: Analyzing trace with hash 825640287, now seen corresponding path program 1 times [2024-12-02 08:12:01,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:01,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74879875] [2024-12-02 08:12:01,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:01,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:12:01,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161010240] [2024-12-02 08:12:01,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:01,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:01,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:12:01,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:12:01,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:12:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:02,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:12:02,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:12:02,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:12:02,202 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:12:02,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:02,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74879875] [2024-12-02 08:12:02,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:12:02,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161010240] [2024-12-02 08:12:02,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161010240] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:12:02,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:12:02,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-12-02 08:12:02,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535893272] [2024-12-02 08:12:02,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:12:02,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:12:02,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:02,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:12:02,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:12:02,204 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 08:12:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:02,301 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2024-12-02 08:12:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:12:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2024-12-02 08:12:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:02,303 INFO L225 Difference]: With dead ends: 46 [2024-12-02 08:12:02,303 INFO L226 Difference]: Without dead ends: 34 [2024-12-02 08:12:02,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:12:02,304 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:02,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 87 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:12:02,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-12-02 08:12:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2024-12-02 08:12:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 08:12:02,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2024-12-02 08:12:02,310 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 24 [2024-12-02 08:12:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:02,310 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2024-12-02 08:12:02,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 08:12:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2024-12-02 08:12:02,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 08:12:02,311 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:02,312 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:02,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:12:02,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:02,512 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:02,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash 336044935, now seen corresponding path program 1 times [2024-12-02 08:12:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446350559] [2024-12-02 08:12:02,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:02,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 08:12:02,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:02,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446350559] [2024-12-02 08:12:02,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446350559] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:12:02,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831316683] [2024-12-02 08:12:02,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:02,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:02,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:12:02,665 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:12:02,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:12:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:02,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:12:02,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:12:02,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:12:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 08:12:02,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831316683] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:12:02,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:12:02,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 7] total 15 [2024-12-02 08:12:02,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581878877] [2024-12-02 08:12:02,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:12:02,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:12:02,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:02,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:12:02,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:12:02,935 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 15 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 08:12:03,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:03,038 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2024-12-02 08:12:03,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:12:03,038 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 30 [2024-12-02 08:12:03,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:03,039 INFO L225 Difference]: With dead ends: 32 [2024-12-02 08:12:03,039 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:12:03,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:12:03,040 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:03,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 109 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:12:03,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:12:03,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:12:03,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:12:03,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:12:03,041 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2024-12-02 08:12:03,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:03,041 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:12:03,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 08:12:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:12:03,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:12:03,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:12:03,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:12:03,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:12:03,248 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 08:12:03,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 08:12:03,314 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:12:03,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:12:03 BoogieIcfgContainer [2024-12-02 08:12:03,328 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:12:03,329 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:12:03,329 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:12:03,329 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:12:03,330 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:12:00" (3/4) ... [2024-12-02 08:12:03,332 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 08:12:03,337 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 08:12:03,337 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-02 08:12:03,340 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 08:12:03,340 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 08:12:03,341 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 08:12:03,341 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 08:12:03,411 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:12:03,411 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:12:03,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:12:03,411 INFO L158 Benchmark]: Toolchain (without parser) took 3603.53ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 66.4MB in the end (delta: 51.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-12-02 08:12:03,412 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:12:03,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.61ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 106.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:12:03,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.79ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:12:03,412 INFO L158 Benchmark]: Boogie Preprocessor took 28.66ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:12:03,413 INFO L158 Benchmark]: RCFGBuilder took 222.16ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 94.2MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:12:03,413 INFO L158 Benchmark]: TraceAbstraction took 3012.00ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 70.5MB in the end (delta: 23.1MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-12-02 08:12:03,413 INFO L158 Benchmark]: Witness Printer took 82.04ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 66.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:12:03,414 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 142.6MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.61ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 106.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.79ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.66ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 222.16ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 94.2MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3012.00ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 70.5MB in the end (delta: 23.1MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Witness Printer took 82.04ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 66.4MB in the end (delta: 4.2MB). 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 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 350 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 209 IncrementalHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 86 mSDtfsCounter, 209 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 145 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=4, InterpolantAutomatonStates: 30, 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 539 SizeOfPredicates, 5 NumberOfNonLiveVariables, 348 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 70/80 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (x1 == ((((long long) x2 * y1) + y2) + y3)) RESULT: Ultimate proved your program to be correct! [2024-12-02 08:12:03,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03297fe8-89ff-4272-adb5-a13c5c5bb710/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE