./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-42.i --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_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/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_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/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_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/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 533002163507f0c639f96dad498aa5a77ce9293ee59501fe5d4faddfa0e552cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:55:44,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:55:44,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:55:44,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:55:44,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:55:44,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:55:44,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:55:44,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:55:44,980 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:55:44,981 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:55:44,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:55:44,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:55:44,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:55:44,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:55:44,981 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:55:44,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:55:44,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:55:44,983 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:55:44,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:55:44,983 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:55:44,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:55:44,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:55:44,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:55:44,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:55:44,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:55:44,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:55:44,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:55:44,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:55:44,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:55:44,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:55:44,985 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_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/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 -> 533002163507f0c639f96dad498aa5a77ce9293ee59501fe5d4faddfa0e552cb [2024-12-02 08:55:45,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:55:45,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:55:45,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:55:45,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:55:45,206 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:55:45,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-42.i [2024-12-02 08:55:47,805 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/data/160726869/329dfdd0997f40499922f1fde2622ef6/FLAGe44af2c61 [2024-12-02 08:55:48,057 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:55:48,058 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-42.i [2024-12-02 08:55:48,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/data/160726869/329dfdd0997f40499922f1fde2622ef6/FLAGe44af2c61 [2024-12-02 08:55:48,085 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/data/160726869/329dfdd0997f40499922f1fde2622ef6 [2024-12-02 08:55:48,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:55:48,089 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:55:48,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:55:48,091 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:55:48,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:55:48,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10dbfce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48, skipping insertion in model container [2024-12-02 08:55:48,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:55:48,270 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_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-42.i[915,928] [2024-12-02 08:55:48,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:55:48,324 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:55:48,335 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_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-42.i[915,928] [2024-12-02 08:55:48,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:55:48,372 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:55:48,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48 WrapperNode [2024-12-02 08:55:48,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:55:48,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:55:48,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:55:48,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:55:48,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,414 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-12-02 08:55:48,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:55:48,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:55:48,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:55:48,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:55:48,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,441 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 08:55:48,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,447 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:55:48,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:55:48,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:55:48,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:55:48,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (1/1) ... [2024-12-02 08:55:48,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:55:48,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:55:48,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:55:48,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:55:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:55:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:55:48,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:55:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:55:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:55:48,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:55:48,574 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:55:48,575 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:55:48,773 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-02 08:55:48,773 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:55:48,782 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:55:48,782 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:55:48,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:48 BoogieIcfgContainer [2024-12-02 08:55:48,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:55:48,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:55:48,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:55:48,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:55:48,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:55:48" (1/3) ... [2024-12-02 08:55:48,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3c4d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:55:48, skipping insertion in model container [2024-12-02 08:55:48,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:48" (2/3) ... [2024-12-02 08:55:48,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3c4d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:55:48, skipping insertion in model container [2024-12-02 08:55:48,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:48" (3/3) ... [2024-12-02 08:55:48,790 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-42.i [2024-12-02 08:55:48,801 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:55:48,802 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-42.i that has 2 procedures, 47 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:55:48,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:55:48,857 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;@5ecf2e23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:55:48,857 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:55:48,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 08:55:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 08:55:48,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:48,867 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:55:48,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:48,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:48,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1995165226, now seen corresponding path program 1 times [2024-12-02 08:55:48,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:48,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645171636] [2024-12-02 08:55:48,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:48,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:49,057 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 08:55:49,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:49,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645171636] [2024-12-02 08:55:49,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645171636] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:55:49,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206082639] [2024-12-02 08:55:49,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:49,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:55:49,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:55:49,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:55:49,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:55:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:49,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:55:49,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:55:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 08:55:49,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:55:49,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206082639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:49,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:55:49,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:55:49,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991796873] [2024-12-02 08:55:49,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:49,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:55:49,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:49,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:55:49,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:55:49,240 INFO L87 Difference]: Start difference. First operand has 47 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:55:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:49,256 INFO L93 Difference]: Finished difference Result 87 states and 145 transitions. [2024-12-02 08:55:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:55:49,257 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 96 [2024-12-02 08:55:49,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:49,262 INFO L225 Difference]: With dead ends: 87 [2024-12-02 08:55:49,262 INFO L226 Difference]: Without dead ends: 43 [2024-12-02 08:55:49,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 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 08:55:49,266 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 [2024-12-02 08:55:49,267 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] [2024-12-02 08:55:49,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-12-02 08:55:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-12-02 08:55:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 08:55:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 61 transitions. [2024-12-02 08:55:49,295 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 61 transitions. Word has length 96 [2024-12-02 08:55:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:49,295 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 61 transitions. [2024-12-02 08:55:49,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:55:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2024-12-02 08:55:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 08:55:49,298 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:49,298 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:55:49,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:55:49,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:55:49,499 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:49,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:49,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1979740120, now seen corresponding path program 1 times [2024-12-02 08:55:49,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:49,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055432526] [2024-12-02 08:55:49,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:49,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:55:49,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:49,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055432526] [2024-12-02 08:55:49,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055432526] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:49,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:49,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:55:49,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167195170] [2024-12-02 08:55:49,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:49,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:55:49,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:49,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:55:49,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:55:49,689 INFO L87 Difference]: Start difference. First operand 43 states and 61 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:55:49,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:49,730 INFO L93 Difference]: Finished difference Result 114 states and 165 transitions. [2024-12-02 08:55:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:55:49,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2024-12-02 08:55:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:49,732 INFO L225 Difference]: With dead ends: 114 [2024-12-02 08:55:49,732 INFO L226 Difference]: Without dead ends: 74 [2024-12-02 08:55:49,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:55:49,734 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 54 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:49,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 147 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:55:49,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-12-02 08:55:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 43. [2024-12-02 08:55:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 08:55:49,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2024-12-02 08:55:49,742 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 96 [2024-12-02 08:55:49,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:49,743 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2024-12-02 08:55:49,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:55:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2024-12-02 08:55:49,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 08:55:49,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:49,744 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:55:49,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:55:49,744 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:49,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:49,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1977893078, now seen corresponding path program 1 times [2024-12-02 08:55:49,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:49,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591588271] [2024-12-02 08:55:49,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:49,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 08:55:52,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:52,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591588271] [2024-12-02 08:55:52,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591588271] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:55:52,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720883384] [2024-12-02 08:55:52,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:52,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:55:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:55:52,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:55:52,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:55:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:52,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-12-02 08:55:52,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:59:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 294 proven. 87 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 08:59:05,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:00:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 123 proven. 57 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-12-02 09:00:54,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720883384] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:00:54,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:00:54,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 29, 23] total 56 [2024-12-02 09:00:54,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634578204] [2024-12-02 09:00:54,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:00:54,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-12-02 09:00:54,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:54,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-12-02 09:00:54,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=747, Invalid=2333, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 09:00:54,349 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand has 56 states, 54 states have (on average 1.8518518518518519) internal successors, (100), 53 states have internal predecessors, (100), 13 states have call successors, (43), 7 states have call predecessors, (43), 17 states have return successors, (44), 15 states have call predecessors, (44), 13 states have call successors, (44) [2024-12-02 09:00:56,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:56,111 INFO L93 Difference]: Finished difference Result 117 states and 136 transitions. [2024-12-02 09:00:56,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 09:00:56,112 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 54 states have (on average 1.8518518518518519) internal successors, (100), 53 states have internal predecessors, (100), 13 states have call successors, (43), 7 states have call predecessors, (43), 17 states have return successors, (44), 15 states have call predecessors, (44), 13 states have call successors, (44) Word has length 96 [2024-12-02 09:00:56,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:56,113 INFO L225 Difference]: With dead ends: 117 [2024-12-02 09:00:56,113 INFO L226 Difference]: Without dead ends: 115 [2024-12-02 09:00:56,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1776 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1375, Invalid=4027, Unknown=0, NotChecked=0, Total=5402 [2024-12-02 09:00:56,116 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 218 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:56,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 479 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 09:00:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-12-02 09:00:56,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 94. [2024-12-02 09:00:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.096774193548387) internal successors, (68), 63 states have internal predecessors, (68), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 09:00:56,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2024-12-02 09:00:56,133 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 96 [2024-12-02 09:00:56,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:56,133 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2024-12-02 09:00:56,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 54 states have (on average 1.8518518518518519) internal successors, (100), 53 states have internal predecessors, (100), 13 states have call successors, (43), 7 states have call predecessors, (43), 17 states have return successors, (44), 15 states have call predecessors, (44), 13 states have call successors, (44) [2024-12-02 09:00:56,134 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2024-12-02 09:00:56,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 09:00:56,135 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:56,135 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:56,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 09:00:56,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-12-02 09:00:56,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:56,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:56,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1507727592, now seen corresponding path program 1 times [2024-12-02 09:00:56,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:56,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923723796] [2024-12-02 09:00:56,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:56,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 09:00:56,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:56,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923723796] [2024-12-02 09:00:56,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923723796] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:56,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:56,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:00:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133269271] [2024-12-02 09:00:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:56,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:00:56,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:56,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:00:56,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:00:56,426 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 09:00:56,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:56,512 INFO L93 Difference]: Finished difference Result 156 states and 185 transitions. [2024-12-02 09:00:56,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:00:56,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2024-12-02 09:00:56,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:56,514 INFO L225 Difference]: With dead ends: 156 [2024-12-02 09:00:56,514 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 09:00:56,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:00:56,516 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:56,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 54 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:00:56,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 09:00:56,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 09:00:56,517 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 09:00:56,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 09:00:56,517 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2024-12-02 09:00:56,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:56,517 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 09:00:56,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 09:00:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 09:00:56,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 09:00:56,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 09:00:56,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 09:00:56,524 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 09:00:56,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 09:00:57,209 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 09:00:57,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:00:57 BoogieIcfgContainer [2024-12-02 09:00:57,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 09:00:57,224 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 09:00:57,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 09:00:57,224 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 09:00:57,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:48" (3/4) ... [2024-12-02 09:00:57,227 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 09:00:57,234 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 09:00:57,238 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-02 09:00:57,239 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 09:00:57,239 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 09:00:57,239 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 09:00:57,267 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((127 <= var_1_7) && (var_1_7 <= 254)) && (0 <= ((long long) last_1_var_1_1 + 1))) && (0 <= ((long long) var_1_1 + 1))) && ((\old(cond) != 0) || (var_1_12 < 2))) [2024-12-02 09:00:57,284 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((127 <= var_1_7) && (var_1_7 <= 254)) && (0 <= ((long long) last_1_var_1_1 + 1))) && (0 <= ((long long) var_1_1 + 1))) && ((\old(cond) != 0) || (var_1_12 < 2))) [2024-12-02 09:00:57,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 09:00:57,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 09:00:57,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 09:00:57,325 INFO L158 Benchmark]: Toolchain (without parser) took 309235.68ms. Allocated memory was 142.6MB in the beginning and 788.5MB in the end (delta: 645.9MB). Free memory was 117.4MB in the beginning and 584.0MB in the end (delta: -466.5MB). Peak memory consumption was 178.1MB. Max. memory is 16.1GB. [2024-12-02 09:00:57,325 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:00:57,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.81ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 104.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 09:00:57,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.70ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 102.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 09:00:57,326 INFO L158 Benchmark]: Boogie Preprocessor took 42.81ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 99.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:00:57,326 INFO L158 Benchmark]: RCFGBuilder took 323.97ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 84.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 09:00:57,326 INFO L158 Benchmark]: TraceAbstraction took 308439.38ms. Allocated memory was 142.6MB in the beginning and 788.5MB in the end (delta: 645.9MB). Free memory was 83.7MB in the beginning and 592.1MB in the end (delta: -508.4MB). Peak memory consumption was 136.1MB. Max. memory is 16.1GB. [2024-12-02 09:00:57,327 INFO L158 Benchmark]: Witness Printer took 99.75ms. Allocated memory is still 788.5MB. Free memory was 592.1MB in the beginning and 584.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 09:00:57,328 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.81ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 104.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.70ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 102.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.81ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 99.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.97ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 84.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 308439.38ms. Allocated memory was 142.6MB in the beginning and 788.5MB in the end (delta: 645.9MB). Free memory was 83.7MB in the beginning and 592.1MB in the end (delta: -508.4MB). Peak memory consumption was 136.1MB. Max. memory is 16.1GB. * Witness Printer took 99.75ms. Allocated memory is still 788.5MB. Free memory was 592.1MB in the beginning and 584.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. 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: 19]: 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 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 307.7s, OverallIterations: 4, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 317 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 741 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 469 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1063 IncrementalHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 272 mSDtfsCounter, 1063 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1776 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=3, InterpolantAutomatonStates: 55, 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, 4 MinimizatonAttempts, 52 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 304.7s InterpolantComputationTime, 576 NumberOfCodeBlocks, 576 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 665 ConstructedInterpolants, 0 QuantifiedInterpolants, 4028 SizeOfPredicates, 20 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 2696/2940 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: 96]: Loop Invariant Derived loop invariant: (((((127 <= var_1_7) && (var_1_7 <= 254)) && (0 <= ((long long) last_1_var_1_1 + 1))) && (0 <= ((long long) var_1_1 + 1))) && ((\old(cond) != 0) || (var_1_12 < 2))) RESULT: Ultimate proved your program to be correct! [2024-12-02 09:00:57,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b05b1fce-fdd6-4ce4-9ac2-6a91703cfd0a/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