./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-42.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC --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 fe48ed16d68df0fc4fa3c4280535a457e51f3caf84063e0c55d9c1da17a02641 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:23:30,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:23:30,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:23:31,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:23:31,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:23:31,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:23:31,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:23:31,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:23:31,052 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:23:31,053 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:23:31,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:23:31,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:23:31,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:23:31,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:23:31,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:23:31,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:23:31,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:23:31,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:23:31,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:23:31,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:23:31,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:23:31,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:23:31,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:23:31,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:23:31,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:23:31,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:23:31,058 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:23:31,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:23:31,058 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:23:31,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:23:31,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:23:31,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:23:31,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:23:31,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:23:31,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:23:31,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:23:31,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:23:31,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:23:31,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:23:31,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:23:31,060 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:23:31,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:23:31,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:23:31,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:23:31,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:23:31,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:23:31,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:23:31,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:23:31,062 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_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC 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 -> fe48ed16d68df0fc4fa3c4280535a457e51f3caf84063e0c55d9c1da17a02641 [2024-11-24 01:23:31,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:23:31,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:23:31,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:23:31,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:23:31,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:23:31,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-42.i [2024-11-24 01:23:35,120 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/data/0e4f63a29/455818e52c9e45c18846fb07145fd946/FLAGe1b6d890c [2024-11-24 01:23:35,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:23:35,490 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-42.i [2024-11-24 01:23:35,505 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/data/0e4f63a29/455818e52c9e45c18846fb07145fd946/FLAGe1b6d890c [2024-11-24 01:23:35,522 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/data/0e4f63a29/455818e52c9e45c18846fb07145fd946 [2024-11-24 01:23:35,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:23:35,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:23:35,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:23:35,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:23:35,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:23:35,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:35,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed01837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35, skipping insertion in model container [2024-11-24 01:23:35,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:35,556 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:23:35,746 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_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-42.i[915,928] [2024-11-24 01:23:35,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:23:35,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:23:35,855 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_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-42.i[915,928] [2024-11-24 01:23:35,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:23:35,935 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:23:35,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35 WrapperNode [2024-11-24 01:23:35,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:23:35,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:23:35,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:23:35,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:23:35,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:35,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:35,995 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-11-24 01:23:35,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:23:35,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:23:35,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:23:35,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:23:36,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,013 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,028 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]. [2024-11-24 01:23:36,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,035 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:23:36,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:23:36,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:23:36,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:23:36,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (1/1) ... [2024-11-24 01:23:36,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:23:36,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:36,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:23:36,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:23:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:23:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:23:36,142 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:23:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:23:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:23:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:23:36,255 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:23:36,260 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:23:36,603 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-24 01:23:36,603 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:23:36,617 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:23:36,617 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:23:36,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:23:36 BoogieIcfgContainer [2024-11-24 01:23:36,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:23:36,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:23:36,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:23:36,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:23:36,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:23:35" (1/3) ... [2024-11-24 01:23:36,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242c91f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:23:36, skipping insertion in model container [2024-11-24 01:23:36,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:23:35" (2/3) ... [2024-11-24 01:23:36,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242c91f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:23:36, skipping insertion in model container [2024-11-24 01:23:36,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:23:36" (3/3) ... [2024-11-24 01:23:36,627 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-42.i [2024-11-24 01:23:36,643 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:23:36,645 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-42.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:23:36,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:23:36,744 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;@56b6da2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:23:36,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:23:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 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) [2024-11-24 01:23:36,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 01:23:36,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:36,761 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, 1] [2024-11-24 01:23:36,762 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:36,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:36,770 INFO L85 PathProgramCache]: Analyzing trace with hash 350031807, now seen corresponding path program 1 times [2024-11-24 01:23:36,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:36,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761921647] [2024-11-24 01:23:36,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-24 01:23:37,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:37,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761921647] [2024-11-24 01:23:37,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761921647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:37,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284405797] [2024-11-24 01:23:37,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:37,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:37,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:37,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:37,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:23:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:37,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:23:37,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-24 01:23:37,418 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:37,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284405797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:37,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:37,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:23:37,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627961211] [2024-11-24 01:23:37,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:37,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:23:37,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:37,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:23:37,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:23:37,456 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2024-11-24 01:23:37,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:37,504 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2024-11-24 01:23:37,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:23:37,506 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 97 [2024-11-24 01:23:37,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:37,515 INFO L225 Difference]: With dead ends: 89 [2024-11-24 01:23:37,515 INFO L226 Difference]: Without dead ends: 44 [2024-11-24 01:23:37,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:23:37,522 INFO L435 NwaCegarLoop]: 62 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, 62 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:37,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-24 01:23:37,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-24 01:23:37,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 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) [2024-11-24 01:23:37,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2024-11-24 01:23:37,571 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 97 [2024-11-24 01:23:37,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:37,574 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2024-11-24 01:23:37,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2024-11-24 01:23:37,574 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2024-11-24 01:23:37,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 01:23:37,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:37,580 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, 1] [2024-11-24 01:23:37,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:23:37,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:23:37,786 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:37,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:37,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1682017665, now seen corresponding path program 1 times [2024-11-24 01:23:37,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:37,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142951871] [2024-11-24 01:23:37,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:37,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 01:23:38,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:38,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142951871] [2024-11-24 01:23:38,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142951871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:38,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:38,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:38,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496267443] [2024-11-24 01:23:38,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:38,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:38,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:38,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:38,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:38,140 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-24 01:23:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:38,190 INFO L93 Difference]: Finished difference Result 116 states and 167 transitions. [2024-11-24 01:23:38,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:38,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 97 [2024-11-24 01:23:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:38,193 INFO L225 Difference]: With dead ends: 116 [2024-11-24 01:23:38,193 INFO L226 Difference]: Without dead ends: 75 [2024-11-24 01:23:38,194 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 [2024-11-24 01:23:38,195 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 56 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 148 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 [2024-11-24 01:23:38,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 148 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:38,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-24 01:23:38,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 44. [2024-11-24 01:23:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 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) [2024-11-24 01:23:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 61 transitions. [2024-11-24 01:23:38,208 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 61 transitions. Word has length 97 [2024-11-24 01:23:38,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:38,210 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 61 transitions. [2024-11-24 01:23:38,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-24 01:23:38,211 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 61 transitions. [2024-11-24 01:23:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 01:23:38,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:38,213 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, 1] [2024-11-24 01:23:38,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:23:38,213 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:38,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:38,214 INFO L85 PathProgramCache]: Analyzing trace with hash -837942269, now seen corresponding path program 1 times [2024-11-24 01:23:38,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:38,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502997727] [2024-11-24 01:23:38,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:38,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 01:23:43,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:43,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502997727] [2024-11-24 01:23:43,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502997727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:43,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814037721] [2024-11-24 01:23:43,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:43,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:43,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:43,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:43,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:23:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:43,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-24 01:23:43,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:27:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 294 proven. 87 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-24 01:27:17,433 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 123 proven. 57 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-24 01:29:08,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814037721] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:08,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:08,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 29, 23] total 56 [2024-11-24 01:29:08,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719382730] [2024-11-24 01:29:08,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:08,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-24 01:29:08,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:08,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-24 01:29:08,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=766, Invalid=2314, Unknown=0, NotChecked=0, Total=3080 [2024-11-24 01:29:08,170 INFO L87 Difference]: Start difference. First operand 44 states and 61 transitions. Second operand has 56 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 53 states have internal predecessors, (103), 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) [2024-11-24 01:29:10,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:10,414 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2024-11-24 01:29:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-24 01:29:10,416 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 53 states have internal predecessors, (103), 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 97 [2024-11-24 01:29:10,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:10,417 INFO L225 Difference]: With dead ends: 118 [2024-11-24 01:29:10,418 INFO L226 Difference]: Without dead ends: 116 [2024-11-24 01:29:10,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1682 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1356, Invalid=3900, Unknown=0, NotChecked=0, Total=5256 [2024-11-24 01:29:10,424 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 233 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:10,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 470 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:29:10,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-24 01:29:10,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 96. [2024-11-24 01:29:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.09375) internal successors, (70), 65 states have internal predecessors, (70), 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) [2024-11-24 01:29:10,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 114 transitions. [2024-11-24 01:29:10,444 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 114 transitions. Word has length 97 [2024-11-24 01:29:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:10,444 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 114 transitions. [2024-11-24 01:29:10,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 53 states have internal predecessors, (103), 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) [2024-11-24 01:29:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 114 transitions. [2024-11-24 01:29:10,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 01:29:10,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:10,451 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, 1] [2024-11-24 01:29:10,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:29:10,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:10,652 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:29:10,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:10,653 INFO L85 PathProgramCache]: Analyzing trace with hash -157883899, now seen corresponding path program 1 times [2024-11-24 01:29:10,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:10,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603859464] [2024-11-24 01:29:10,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:10,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 01:29:10,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603859464] [2024-11-24 01:29:10,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603859464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:10,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:10,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:29:10,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370746709] [2024-11-24 01:29:10,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:10,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:29:10,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:10,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:29:10,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:29:10,784 INFO L87 Difference]: Start difference. First operand 96 states and 114 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-24 01:29:10,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:10,900 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2024-11-24 01:29:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:10,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 97 [2024-11-24 01:29:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:10,902 INFO L225 Difference]: With dead ends: 159 [2024-11-24 01:29:10,902 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:29:10,903 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 [2024-11-24 01:29:10,904 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 55 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 [2024-11-24 01:29:10,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 55 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:10,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:29:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:29:10,905 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) [2024-11-24 01:29:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:29:10,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2024-11-24 01:29:10,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:10,906 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:29:10,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-24 01:29:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:29:10,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:29:10,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:29:10,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:29:10,914 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 01:29:10,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:29:11,824 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:29:11,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:29:11 BoogieIcfgContainer [2024-11-24 01:29:11,840 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:29:11,841 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:29:11,841 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:29:11,841 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:29:11,842 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:23:36" (3/4) ... [2024-11-24 01:29:11,845 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:29:11,851 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 01:29:11,855 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-24 01:29:11,856 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-24 01:29:11,856 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 01:29:11,856 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:29:11,886 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))) [2024-11-24 01:29:11,919 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))) [2024-11-24 01:29:11,967 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:29:11,967 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:29:11,967 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:29:11,970 INFO L158 Benchmark]: Toolchain (without parser) took 336441.20ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 964.7MB). Free memory was 106.8MB in the beginning and 731.0MB in the end (delta: -624.2MB). Peak memory consumption was 335.3MB. Max. memory is 16.1GB. [2024-11-24 01:29:11,970 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:29:11,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.53ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 94.2MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:29:11,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.07ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 91.9MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:29:11,973 INFO L158 Benchmark]: Boogie Preprocessor took 61.38ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 89.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:29:11,973 INFO L158 Benchmark]: RCFGBuilder took 559.50ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 73.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:29:11,973 INFO L158 Benchmark]: TraceAbstraction took 335220.79ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 964.7MB). Free memory was 72.9MB in the beginning and 735.0MB in the end (delta: -662.1MB). Peak memory consumption was 301.7MB. Max. memory is 16.1GB. [2024-11-24 01:29:11,973 INFO L158 Benchmark]: Witness Printer took 126.21ms. Allocated memory is still 1.1GB. Free memory was 735.0MB in the beginning and 731.0MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:29:11,975 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.53ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 94.2MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.07ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 91.9MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.38ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 89.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 559.50ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 73.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 335220.79ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 964.7MB). Free memory was 72.9MB in the beginning and 735.0MB in the end (delta: -662.1MB). Peak memory consumption was 301.7MB. Max. memory is 16.1GB. * Witness Printer took 126.21ms. Allocated memory is still 1.1GB. Free memory was 735.0MB in the beginning and 731.0MB in the end (delta: 4.0MB). 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: 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 334.2s, OverallIterations: 4, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 330 mSDsluCounter, 735 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 460 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 966 IncrementalHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 275 mSDtfsCounter, 966 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1682 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=3, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 51 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 330.1s InterpolantComputationTime, 582 NumberOfCodeBlocks, 582 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 672 ConstructedInterpolants, 0 QuantifiedInterpolants, 4198 SizeOfPredicates, 19 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 61 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! [2024-11-24 01:29:12,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796af6e-4ddf-42be-b1c6-23d2a0d668b8/bin/uautomizer-verify-LYvppIcaGC/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