./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.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_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/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_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/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_3a4fec72-8084-4561-94f0-845fd4705598/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 eab8bb5264af256faa5495eae630c9d7fc0f9ba0bd7283414fe1b06e45a31044 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:10:35,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:10:35,971 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:10:35,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:10:35,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:10:36,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:10:36,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:10:36,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:10:36,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:10:36,031 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:10:36,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:10:36,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:10:36,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:10:36,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:10:36,033 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:10:36,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:10:36,034 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:10:36,035 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:36,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:10:36,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:36,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:10:36,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:10:36,036 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_3a4fec72-8084-4561-94f0-845fd4705598/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 -> eab8bb5264af256faa5495eae630c9d7fc0f9ba0bd7283414fe1b06e45a31044 [2024-11-24 00:10:36,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:10:36,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:10:36,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:10:36,436 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:10:36,436 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:10:36,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i [2024-11-24 00:10:39,480 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data/ba61c531d/f5bddfbfd4fd497c810db9be58d3426c/FLAG41aab0c82 [2024-11-24 00:10:39,855 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:10:39,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i [2024-11-24 00:10:39,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data/ba61c531d/f5bddfbfd4fd497c810db9be58d3426c/FLAG41aab0c82 [2024-11-24 00:10:40,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data/ba61c531d/f5bddfbfd4fd497c810db9be58d3426c [2024-11-24 00:10:40,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:10:40,061 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:10:40,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:10:40,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:10:40,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:10:40,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7627c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40, skipping insertion in model container [2024-11-24 00:10:40,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:10:40,305 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_3a4fec72-8084-4561-94f0-845fd4705598/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i[915,928] [2024-11-24 00:10:40,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:10:40,370 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:10:40,383 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_3a4fec72-8084-4561-94f0-845fd4705598/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i[915,928] [2024-11-24 00:10:40,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:10:40,427 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:10:40,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40 WrapperNode [2024-11-24 00:10:40,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:10:40,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:10:40,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:10:40,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:10:40,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,475 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2024-11-24 00:10:40,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:10:40,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:10:40,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:10:40,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:10:40,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,488 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,500 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 00:10:40,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,506 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:10:40,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:10:40,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:10:40,525 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:10:40,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (1/1) ... [2024-11-24 00:10:40,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:40,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:40,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:10:40,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:10:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:10:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:10:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:10:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:10:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:10:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:10:40,665 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:10:40,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:10:41,074 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-24 00:10:41,074 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:10:41,084 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:10:41,085 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:10:41,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:41 BoogieIcfgContainer [2024-11-24 00:10:41,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:10:41,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:10:41,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:10:41,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:10:41,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:10:40" (1/3) ... [2024-11-24 00:10:41,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351316ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:41, skipping insertion in model container [2024-11-24 00:10:41,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:40" (2/3) ... [2024-11-24 00:10:41,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351316ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:41, skipping insertion in model container [2024-11-24 00:10:41,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:41" (3/3) ... [2024-11-24 00:10:41,099 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-67.i [2024-11-24 00:10:41,116 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:10:41,117 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-67.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:10:41,189 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:10:41,201 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;@40803935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:10:41,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:10:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 00:10:41,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:10:41,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:41,215 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:41,215 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:41,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:41,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1694926257, now seen corresponding path program 1 times [2024-11-24 00:10:41,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:41,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090183453] [2024-11-24 00:10:41,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:41,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-24 00:10:41,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:41,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090183453] [2024-11-24 00:10:41,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090183453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:41,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123850898] [2024-11-24 00:10:41,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:41,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:41,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:41,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:41,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:10:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:41,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:10:41,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-24 00:10:41,810 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:41,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123850898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:41,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:10:41,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:10:41,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293664466] [2024-11-24 00:10:41,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:41,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:10:41,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:41,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:10:41,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:10:41,838 INFO L87 Difference]: Start difference. First operand has 54 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 00:10:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:41,866 INFO L93 Difference]: Finished difference Result 105 states and 176 transitions. [2024-11-24 00:10:41,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:10:41,868 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 118 [2024-11-24 00:10:41,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:41,874 INFO L225 Difference]: With dead ends: 105 [2024-11-24 00:10:41,875 INFO L226 Difference]: Without dead ends: 50 [2024-11-24 00:10:41,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 119 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 00:10:41,881 INFO L435 NwaCegarLoop]: 77 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, 77 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 00:10:41,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:41,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-24 00:10:41,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-24 00:10:41,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 00:10:41,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions. [2024-11-24 00:10:41,922 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 118 [2024-11-24 00:10:41,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:41,923 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 73 transitions. [2024-11-24 00:10:41,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 00:10:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions. [2024-11-24 00:10:41,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:10:41,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:41,928 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:41,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:10:42,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:42,129 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:42,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:42,130 INFO L85 PathProgramCache]: Analyzing trace with hash -410915665, now seen corresponding path program 1 times [2024-11-24 00:10:42,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:42,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000560296] [2024-11-24 00:10:42,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:42,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 00:10:42,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000560296] [2024-11-24 00:10:42,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000560296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:42,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:42,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:10:42,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263806196] [2024-11-24 00:10:42,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:42,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:42,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:42,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:42,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:42,868 INFO L87 Difference]: Start difference. First operand 50 states and 73 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 00:10:43,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:43,374 INFO L93 Difference]: Finished difference Result 201 states and 294 transitions. [2024-11-24 00:10:43,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:43,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 118 [2024-11-24 00:10:43,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:43,380 INFO L225 Difference]: With dead ends: 201 [2024-11-24 00:10:43,381 INFO L226 Difference]: Without dead ends: 154 [2024-11-24 00:10:43,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:10:43,384 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 89 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:43,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 285 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:10:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-24 00:10:43,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 96. [2024-11-24 00:10:43,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 55 states have internal predecessors, (67), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:10:43,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2024-11-24 00:10:43,430 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 118 [2024-11-24 00:10:43,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:43,431 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2024-11-24 00:10:43,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 00:10:43,432 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2024-11-24 00:10:43,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:10:43,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:43,434 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:43,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:10:43,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:43,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:43,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1364091697, now seen corresponding path program 1 times [2024-11-24 00:10:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:43,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96305539] [2024-11-24 00:10:43,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:43,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:10:43,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906006186] [2024-11-24 00:10:43,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:43,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:43,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:43,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:43,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:10:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:10:43,868 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:10:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:10:44,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:10:44,008 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:10:44,009 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:10:44,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:10:44,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:44,214 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-24 00:10:44,300 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:10:44,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:10:44 BoogieIcfgContainer [2024-11-24 00:10:44,308 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:10:44,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:10:44,309 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:10:44,309 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:10:44,313 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:41" (3/4) ... [2024-11-24 00:10:44,316 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:10:44,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:10:44,319 INFO L158 Benchmark]: Toolchain (without parser) took 4257.00ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.7MB in the beginning and 246.8MB in the end (delta: -153.1MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-11-24 00:10:44,319 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:10:44,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.85ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 81.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:10:44,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.76ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.6MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:10:44,323 INFO L158 Benchmark]: Boogie Preprocessor took 47.92ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 75.6MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:10:44,323 INFO L158 Benchmark]: RCFGBuilder took 560.87ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 58.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:10:44,323 INFO L158 Benchmark]: TraceAbstraction took 3218.60ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 57.8MB in the beginning and 246.8MB in the end (delta: -189.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-24 00:10:44,324 INFO L158 Benchmark]: Witness Printer took 8.81ms. Allocated memory is still 352.3MB. Free memory was 246.8MB in the beginning and 246.8MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:10:44,328 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 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.85ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 81.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.76ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.6MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.92ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 75.6MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 560.87ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 58.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3218.60ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 57.8MB in the beginning and 246.8MB in the end (delta: -189.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 8.81ms. Allocated memory is still 352.3MB. Free memory was 246.8MB in the beginning and 246.8MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryFLOATComparisonOperation at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 2; [L23] signed short int var_1_4 = -64; [L24] signed short int var_1_5 = 256; [L25] unsigned short int var_1_6 = 128; [L26] signed short int var_1_7 = -128; [L27] unsigned short int var_1_8 = 16; [L28] unsigned short int var_1_9 = 256; [L29] signed long int var_1_10 = 128; [L30] unsigned short int var_1_11 = 47512; [L31] unsigned char var_1_12 = 16; [L32] unsigned char var_1_13 = 1; [L33] float var_1_14 = 5.5; [L34] float var_1_15 = 24.5; [L35] signed short int last_1_var_1_1 = 2; [L36] unsigned short int last_1_var_1_6 = 128; VAL [isInitial=0, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-64, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L102] isInitial = 1 [L103] FCALL initially() [L104] int k_loop; [L105] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-64, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L105] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-64, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L106] CALL updateLastVariables() [L94] last_1_var_1_1 = var_1_1 [L95] last_1_var_1_6 = var_1_6 VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-64, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L106] RET updateLastVariables() [L107] CALL updateVariables() [L64] var_1_4 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_4 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L65] RET assume_abort_if_not(var_1_4 >= -16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L66] CALL assume_abort_if_not(var_1_4 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L66] RET assume_abort_if_not(var_1_4 <= 16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L67] var_1_5 = __VERIFIER_nondet_short() [L68] CALL assume_abort_if_not(var_1_5 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L68] RET assume_abort_if_not(var_1_5 >= -16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L69] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L69] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L70] var_1_7 = __VERIFIER_nondet_short() [L71] CALL assume_abort_if_not(var_1_7 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L71] RET assume_abort_if_not(var_1_7 >= -32768) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L72] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L72] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L73] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L73] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L74] var_1_8 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_9=256] [L75] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_9=256] [L76] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=256] [L76] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=256] [L77] var_1_9 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0] [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0] [L79] CALL assume_abort_if_not(var_1_9 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L79] RET assume_abort_if_not(var_1_9 <= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L80] var_1_11 = __VERIFIER_nondet_ushort() [L81] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L81] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L82] CALL assume_abort_if_not(var_1_11 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L82] RET assume_abort_if_not(var_1_11 <= 65535) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L83] var_1_12 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L84] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L85] CALL assume_abort_if_not(var_1_12 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L85] RET assume_abort_if_not(var_1_12 <= 255) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L86] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L86] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L87] var_1_13 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L88] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L89] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L89] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L90] var_1_15 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L91] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L107] RET updateVariables() [L108] CALL step() [L40] signed long int stepLocal_1 = last_1_var_1_6; [L41] signed long int stepLocal_0 = last_1_var_1_6; VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, stepLocal_0=128, stepLocal_1=128, var_1_10=128, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L42] COND FALSE !(stepLocal_0 >= (var_1_11 - var_1_8)) [L53] var_1_10 = last_1_var_1_1 VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, stepLocal_1=128, var_1_10=2, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L55] COND FALSE !(! (var_1_10 <= last_1_var_1_1)) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, stepLocal_1=128, var_1_10=2, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=128, var_1_7=3, var_1_8=0, var_1_9=65536] [L58] COND TRUE var_1_4 > (var_1_10 / var_1_7) [L59] var_1_6 = (var_1_8 + var_1_9) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, stepLocal_1=128, var_1_10=2, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=11/2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=0, var_1_7=3, var_1_8=0, var_1_9=65536] [L61] var_1_14 = var_1_15 VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, stepLocal_1=128, var_1_10=2, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=2, var_1_15=2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=0, var_1_7=3, var_1_8=0, var_1_9=65536] [L108] RET step() [L109] CALL, EXPR property() [L98-L99] return ((((! (var_1_10 <= last_1_var_1_1)) ? (var_1_1 == ((signed short int) (var_1_4 + var_1_5))) : 1) && ((var_1_4 > (var_1_10 / var_1_7)) ? (var_1_6 == ((unsigned short int) (var_1_8 + var_1_9))) : 1)) && ((last_1_var_1_6 >= (var_1_11 - var_1_8)) ? (((var_1_7 / var_1_12) <= last_1_var_1_6) ? (var_1_10 == ((signed long int) ((last_1_var_1_6 - var_1_8) + -32))) : (var_1_13 ? (var_1_10 == ((signed long int) ((((var_1_11) < (var_1_7)) ? (var_1_11) : (var_1_7))))) : (var_1_10 == ((signed long int) var_1_5)))) : (var_1_10 == ((signed long int) last_1_var_1_1)))) && (var_1_14 == ((float) var_1_15)) ; VAL [\result=0, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=2, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=2, var_1_15=2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=0, var_1_7=3, var_1_8=0, var_1_9=65536] [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=2, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=2, var_1_15=2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=0, var_1_7=3, var_1_8=0, var_1_9=65536] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=2, var_1_11=32767, var_1_12=2, var_1_13=-255, var_1_14=2, var_1_15=2, var_1_1=2, var_1_4=1, var_1_5=-16383, var_1_6=0, var_1_7=3, var_1_8=0, var_1_9=65536] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 362 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 200 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 590 NumberOfCodeBlocks, 590 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 351 ConstructedInterpolants, 0 QuantifiedInterpolants, 425 SizeOfPredicates, 0 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2016/2052 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:10:44,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/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_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/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 eab8bb5264af256faa5495eae630c9d7fc0f9ba0bd7283414fe1b06e45a31044 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:10:47,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:10:47,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:10:47,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:10:47,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:10:47,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:10:47,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:10:47,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:10:47,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:10:47,401 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:10:47,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:10:47,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:10:47,402 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:10:47,402 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:10:47,403 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:10:47,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:10:47,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:10:47,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:10:47,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:10:47,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:10:47,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:10:47,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:10:47,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:10:47,405 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:10:47,405 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:10:47,405 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:10:47,405 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:10:47,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:10:47,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:10:47,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:10:47,405 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:10:47,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:10:47,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:10:47,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:10:47,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:47,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:10:47,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:10:47,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:10:47,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:10:47,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:47,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:10:47,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:10:47,408 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:10:47,408 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:10:47,409 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:10:47,409 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:10:47,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:10:47,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:10:47,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:10:47,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:10:47,409 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_3a4fec72-8084-4561-94f0-845fd4705598/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 -> eab8bb5264af256faa5495eae630c9d7fc0f9ba0bd7283414fe1b06e45a31044 [2024-11-24 00:10:47,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:10:47,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:10:47,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:10:47,796 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:10:47,796 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:10:47,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i [2024-11-24 00:10:51,041 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data/0be8cf002/32179e814edf46e5b2deb3affb08931e/FLAGbc799f9c9 [2024-11-24 00:10:51,273 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:10:51,274 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i [2024-11-24 00:10:51,282 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data/0be8cf002/32179e814edf46e5b2deb3affb08931e/FLAGbc799f9c9 [2024-11-24 00:10:51,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/data/0be8cf002/32179e814edf46e5b2deb3affb08931e [2024-11-24 00:10:51,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:10:51,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:10:51,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:10:51,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:10:51,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:10:51,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ad76de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51, skipping insertion in model container [2024-11-24 00:10:51,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:10:51,555 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_3a4fec72-8084-4561-94f0-845fd4705598/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i[915,928] [2024-11-24 00:10:51,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:10:51,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:10:51,686 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_3a4fec72-8084-4561-94f0-845fd4705598/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-67.i[915,928] [2024-11-24 00:10:51,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:10:51,753 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:10:51,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51 WrapperNode [2024-11-24 00:10:51,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:10:51,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:10:51,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:10:51,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:10:51,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,825 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2024-11-24 00:10:51,826 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:10:51,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:10:51,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:10:51,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:10:51,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,858 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 00:10:51,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,868 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:10:51,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:10:51,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:10:51,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:10:51,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (1/1) ... [2024-11-24 00:10:51,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:51,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:51,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:10:51,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:10:51,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:10:51,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:10:51,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:10:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:10:51,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:10:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:10:52,055 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:10:52,057 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:10:52,486 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-24 00:10:52,486 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:10:52,503 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:10:52,503 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:10:52,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:52 BoogieIcfgContainer [2024-11-24 00:10:52,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:10:52,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:10:52,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:10:52,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:10:52,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:10:51" (1/3) ... [2024-11-24 00:10:52,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:52, skipping insertion in model container [2024-11-24 00:10:52,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:51" (2/3) ... [2024-11-24 00:10:52,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:52, skipping insertion in model container [2024-11-24 00:10:52,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:52" (3/3) ... [2024-11-24 00:10:52,517 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-67.i [2024-11-24 00:10:52,536 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:10:52,537 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-67.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:10:52,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:10:52,667 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;@396b6398, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:10:52,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:10:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 00:10:52,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:10:52,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:52,686 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:52,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:52,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1694926257, now seen corresponding path program 1 times [2024-11-24 00:10:52,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:52,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029258541] [2024-11-24 00:10:52,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:52,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:52,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:52,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:10:52,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:10:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:52,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:10:52,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:53,002 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-24 00:10:53,002 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:53,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:10:53,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029258541] [2024-11-24 00:10:53,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029258541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:53,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:53,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:10:53,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419917582] [2024-11-24 00:10:53,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:53,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:10:53,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:10:53,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:10:53,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:10:53,032 INFO L87 Difference]: Start difference. First operand has 54 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 00:10:53,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:53,064 INFO L93 Difference]: Finished difference Result 105 states and 176 transitions. [2024-11-24 00:10:53,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:10:53,066 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 118 [2024-11-24 00:10:53,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:53,074 INFO L225 Difference]: With dead ends: 105 [2024-11-24 00:10:53,075 INFO L226 Difference]: Without dead ends: 50 [2024-11-24 00:10:53,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 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 00:10:53,084 INFO L435 NwaCegarLoop]: 77 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, 77 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 00:10:53,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:53,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-24 00:10:53,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-24 00:10:53,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 00:10:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions. [2024-11-24 00:10:53,150 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 118 [2024-11-24 00:10:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:53,151 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 73 transitions. [2024-11-24 00:10:53,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 00:10:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions. [2024-11-24 00:10:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:10:53,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:53,159 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:53,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:10:53,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:53,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:53,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash -410915665, now seen corresponding path program 1 times [2024-11-24 00:10:53,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:53,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146339733] [2024-11-24 00:10:53,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:53,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:53,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:53,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:10:53,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:10:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:53,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:10:53,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 00:10:54,294 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:54,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:10:54,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146339733] [2024-11-24 00:10:54,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146339733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:54,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:54,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:54,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880876845] [2024-11-24 00:10:54,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:54,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:54,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:10:54,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:54,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:54,298 INFO L87 Difference]: Start difference. First operand 50 states and 73 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 00:10:55,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:55,039 INFO L93 Difference]: Finished difference Result 201 states and 294 transitions. [2024-11-24 00:10:55,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:55,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 118 [2024-11-24 00:10:55,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:55,049 INFO L225 Difference]: With dead ends: 201 [2024-11-24 00:10:55,049 INFO L226 Difference]: Without dead ends: 154 [2024-11-24 00:10:55,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:10:55,051 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 96 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:55,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 285 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:10:55,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-24 00:10:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 96. [2024-11-24 00:10:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 55 states have internal predecessors, (67), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:10:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2024-11-24 00:10:55,099 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 118 [2024-11-24 00:10:55,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:55,102 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2024-11-24 00:10:55,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 00:10:55,102 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2024-11-24 00:10:55,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:10:55,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:55,107 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:55,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 00:10:55,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:55,308 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:55,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:55,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1364091697, now seen corresponding path program 1 times [2024-11-24 00:10:55,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:55,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310953090] [2024-11-24 00:10:55,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:55,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:55,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:55,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:10:55,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 00:10:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:55,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:10:55,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-24 00:17:35,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:17:35,386 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:35,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310953090] [2024-11-24 00:17:35,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310953090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:17:35,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:17:35,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:17:35,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830597724] [2024-11-24 00:17:35,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:17:35,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:17:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:17:35,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:17:35,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:17:35,389 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 00:17:38,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:38,795 INFO L93 Difference]: Finished difference Result 195 states and 271 transitions. [2024-11-24 00:17:38,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:17:38,799 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 118 [2024-11-24 00:17:38,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:38,801 INFO L225 Difference]: With dead ends: 195 [2024-11-24 00:17:38,802 INFO L226 Difference]: Without dead ends: 193 [2024-11-24 00:17:38,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:17:38,804 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 134 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:38,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 488 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 00:17:38,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-24 00:17:38,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 172. [2024-11-24 00:17:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 102 states have (on average 1.196078431372549) internal successors, (122), 103 states have internal predecessors, (122), 64 states have call successors, (64), 5 states have call predecessors, (64), 5 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-24 00:17:38,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 250 transitions. [2024-11-24 00:17:38,851 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 250 transitions. Word has length 118 [2024-11-24 00:17:38,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:38,854 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 250 transitions. [2024-11-24 00:17:38,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 00:17:38,854 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 250 transitions. [2024-11-24 00:17:38,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:17:38,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:38,861 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:17:38,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-24 00:17:39,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:17:39,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:39,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:39,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1421349999, now seen corresponding path program 1 times [2024-11-24 00:17:39,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:39,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354363230] [2024-11-24 00:17:39,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:39,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:17:39,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:39,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:17:39,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 00:17:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:39,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:17:39,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:57,401 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-24 00:21:57,401 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:21:57,402 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:21:57,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354363230] [2024-11-24 00:21:57,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354363230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:57,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:57,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:21:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597991889] [2024-11-24 00:21:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:57,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:21:57,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:21:57,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:21:57,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:21:57,404 INFO L87 Difference]: Start difference. First operand 172 states and 250 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 00:22:02,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:02,417 INFO L93 Difference]: Finished difference Result 181 states and 257 transitions. [2024-11-24 00:22:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:22:02,418 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 118 [2024-11-24 00:22:02,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:02,420 INFO L225 Difference]: With dead ends: 181 [2024-11-24 00:22:02,421 INFO L226 Difference]: Without dead ends: 179 [2024-11-24 00:22:02,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:22:02,422 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 80 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:02,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 451 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 00:22:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-24 00:22:02,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 172. [2024-11-24 00:22:02,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 102 states have (on average 1.1862745098039216) internal successors, (121), 103 states have internal predecessors, (121), 64 states have call successors, (64), 5 states have call predecessors, (64), 5 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-24 00:22:02,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 249 transitions. [2024-11-24 00:22:02,469 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 249 transitions. Word has length 118 [2024-11-24 00:22:02,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:02,469 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 249 transitions. [2024-11-24 00:22:02,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-24 00:22:02,470 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 249 transitions. [2024-11-24 00:22:02,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:22:02,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:02,472 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:02,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:22:02,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:22:02,673 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:02,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:02,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1902401277, now seen corresponding path program 1 times [2024-11-24 00:22:02,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:22:02,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507332469] [2024-11-24 00:22:02,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:02,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:22:02,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:22:02,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:22:02,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 00:22:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:02,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:22:02,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 426 proven. 48 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-24 00:22:04,600 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:05,313 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:22:05,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507332469] [2024-11-24 00:22:05,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507332469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:05,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [156707514] [2024-11-24 00:22:05,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:05,313 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:22:05,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:22:05,315 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:22:05,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-24 00:22:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:05,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:22:05,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:07,276 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 426 proven. 48 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-24 00:22:07,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:07,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [156707514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:07,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:22:07,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2024-11-24 00:22:07,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513941223] [2024-11-24 00:22:07,542 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:22:07,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:22:07,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:22:07,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:22:07,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:22:07,543 INFO L87 Difference]: Start difference. First operand 172 states and 249 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:22:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:13,751 INFO L93 Difference]: Finished difference Result 356 states and 480 transitions. [2024-11-24 00:22:13,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-24 00:22:13,758 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 119 [2024-11-24 00:22:13,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:13,762 INFO L225 Difference]: With dead ends: 356 [2024-11-24 00:22:13,762 INFO L226 Difference]: Without dead ends: 309 [2024-11-24 00:22:13,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=701, Invalid=2161, Unknown=0, NotChecked=0, Total=2862 [2024-11-24 00:22:13,765 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 164 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:13,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 548 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-24 00:22:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-24 00:22:13,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 230. [2024-11-24 00:22:13,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 136 states have (on average 1.1544117647058822) internal successors, (157), 138 states have internal predecessors, (157), 82 states have call successors, (82), 11 states have call predecessors, (82), 11 states have return successors, (82), 80 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-24 00:22:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 321 transitions. [2024-11-24 00:22:13,828 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 321 transitions. Word has length 119 [2024-11-24 00:22:13,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:13,830 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 321 transitions. [2024-11-24 00:22:13,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 00:22:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 321 transitions. [2024-11-24 00:22:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:22:13,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:13,833 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:13,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-24 00:22:14,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-24 00:22:14,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:22:14,234 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:14,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:14,235 INFO L85 PathProgramCache]: Analyzing trace with hash -127393915, now seen corresponding path program 1 times [2024-11-24 00:22:14,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:22:14,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623435362] [2024-11-24 00:22:14,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:14,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:22:14,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:22:14,238 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:22:14,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4fec72-8084-4561-94f0-845fd4705598/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-24 00:22:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:14,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:22:14,412 INFO L279 TraceCheckSpWp]: Computing forward predicates...