./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:26:24,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:26:24,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:26:24,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:26:24,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:26:24,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:26:24,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:26:24,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:26:24,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:26:24,251 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:26:24,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:26:24,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:26:24,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:26:24,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:26:24,253 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:26:24,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:26:24,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:26:24,256 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:26:24,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:26:24,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:26:24,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:24,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:24,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:24,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:24,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:26:24,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:24,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:24,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:26:24,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:26:24,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:26:24,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:26:24,260 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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 -> 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 [2024-11-23 18:26:24,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:26:24,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:26:24,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:26:24,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:26:24,694 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:26:24,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-23 18:26:28,306 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data/d3c2ee765/d59ced63fd5c4458ac3a6ecd582b6fc3/FLAG2f3eeccc2 [2024-11-23 18:26:28,667 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:26:28,668 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-23 18:26:28,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data/d3c2ee765/d59ced63fd5c4458ac3a6ecd582b6fc3/FLAG2f3eeccc2 [2024-11-23 18:26:28,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data/d3c2ee765/d59ced63fd5c4458ac3a6ecd582b6fc3 [2024-11-23 18:26:28,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:26:28,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:26:28,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:28,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:26:28,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:26:28,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:28" (1/1) ... [2024-11-23 18:26:28,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4df9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:28, skipping insertion in model container [2024-11-23 18:26:28,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:28" (1/1) ... [2024-11-23 18:26:28,753 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:26:28,937 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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2024-11-23 18:26:28,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:29,008 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:26:29,025 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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2024-11-23 18:26:29,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:29,071 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:26:29,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29 WrapperNode [2024-11-23 18:26:29,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:29,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:29,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:26:29,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:26:29,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,160 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-11-23 18:26:29,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:29,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:26:29,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:26:29,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:26:29,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,204 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]. [2024-11-23 18:26:29,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,216 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:26:29,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:26:29,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:26:29,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:26:29,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (1/1) ... [2024-11-23 18:26:29,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:29,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:29,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:26:29,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:26:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:26:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:26:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:26:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:26:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:26:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:26:29,454 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:26:29,457 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:26:29,847 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-23 18:26:29,848 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:26:29,861 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:26:29,861 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 18:26:29,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:29 BoogieIcfgContainer [2024-11-23 18:26:29,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:26:29,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:26:29,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:26:29,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:26:29,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:26:28" (1/3) ... [2024-11-23 18:26:29,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29157bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:29, skipping insertion in model container [2024-11-23 18:26:29,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:29" (2/3) ... [2024-11-23 18:26:29,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29157bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:29, skipping insertion in model container [2024-11-23 18:26:29,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:29" (3/3) ... [2024-11-23 18:26:29,874 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-23 18:26:29,897 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:26:29,901 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:26:29,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:26:30,022 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;@665efee2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:26:30,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:26:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 18:26:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:26:30,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:30,045 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:30,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:30,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:30,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1898402416, now seen corresponding path program 1 times [2024-11-23 18:26:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:30,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852289809] [2024-11-23 18:26:30,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:30,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-23 18:26:30,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:30,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852289809] [2024-11-23 18:26:30,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852289809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:26:30,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761921647] [2024-11-23 18:26:30,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:30,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:30,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:30,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:26:30,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:26:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:30,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:26:30,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:26:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-23 18:26:30,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:26:30,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761921647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:30,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:26:30,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:26:30,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618563542] [2024-11-23 18:26:30,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:30,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:26:30,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:30,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:26:30,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:30,915 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 18:26:30,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:30,967 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2024-11-23 18:26:30,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:26:30,971 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2024-11-23 18:26:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:30,979 INFO L225 Difference]: With dead ends: 99 [2024-11-23 18:26:30,979 INFO L226 Difference]: Without dead ends: 47 [2024-11-23 18:26:30,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:30,992 INFO L435 NwaCegarLoop]: 71 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, 71 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 [2024-11-23 18:26:30,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:26:31,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-23 18:26:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-23 18:26:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 18:26:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2024-11-23 18:26:31,054 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 98 [2024-11-23 18:26:31,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:31,055 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2024-11-23 18:26:31,055 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 18:26:31,056 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2024-11-23 18:26:31,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:26:31,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:31,060 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:31,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:26:31,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:26:31,265 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:31,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:31,267 INFO L85 PathProgramCache]: Analyzing trace with hash -974917370, now seen corresponding path program 1 times [2024-11-23 18:26:31,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:31,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221080141] [2024-11-23 18:26:31,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:31,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:31,669 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 18:26:31,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:31,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221080141] [2024-11-23 18:26:31,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221080141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:31,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:31,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:26:31,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170809673] [2024-11-23 18:26:31,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:31,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:26:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:31,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:26:31,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:26:31,672 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-23 18:26:31,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:31,720 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2024-11-23 18:26:31,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:26:31,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-23 18:26:31,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:31,725 INFO L225 Difference]: With dead ends: 102 [2024-11-23 18:26:31,725 INFO L226 Difference]: Without dead ends: 58 [2024-11-23 18:26:31,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:26:31,730 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 15 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:31,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 127 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:26:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-23 18:26:31,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2024-11-23 18:26:31,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 18:26:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-23 18:26:31,752 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 98 [2024-11-23 18:26:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:31,757 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-23 18:26:31,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-23 18:26:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2024-11-23 18:26:31,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:26:31,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:31,763 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:31,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:26:31,766 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:31,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash 800089992, now seen corresponding path program 1 times [2024-11-23 18:26:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:31,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678902680] [2024-11-23 18:26:31,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:31,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 18:26:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482312469] [2024-11-23 18:26:31,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:31,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:31,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:31,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:26:31,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:26:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:26:32,143 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:26:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:26:32,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:26:32,312 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:26:32,314 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 18:26:32,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 18:26:32,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:32,520 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 18:26:32,630 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:26:32,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:26:32 BoogieIcfgContainer [2024-11-23 18:26:32,638 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:26:32,639 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:26:32,639 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:26:32,639 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:26:32,640 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:29" (3/4) ... [2024-11-23 18:26:32,643 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 18:26:32,644 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:26:32,645 INFO L158 Benchmark]: Toolchain (without parser) took 3925.09ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 55.5MB in the end (delta: 62.7MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2024-11-23 18:26:32,646 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:26:32,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.71ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 105.7MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:26:32,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.32ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 103.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:26:32,647 INFO L158 Benchmark]: Boogie Preprocessor took 80.46ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 102.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:26:32,647 INFO L158 Benchmark]: RCFGBuilder took 619.55ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 87.4MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:26:32,648 INFO L158 Benchmark]: TraceAbstraction took 2773.71ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 55.6MB in the end (delta: 31.4MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2024-11-23 18:26:32,649 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 142.6MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:26:32,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.71ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 105.7MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.32ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 103.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 80.46ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 102.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 619.55ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 87.4MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2773.71ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 55.6MB in the end (delta: 31.4MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 142.6MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 21.0kB). 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 45, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 78. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -4; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 0; [L25] signed short int var_1_7 = 5; [L26] unsigned long int var_1_9 = 256; [L27] signed char var_1_10 = 10; [L28] signed char var_1_11 = 4; [L29] float var_1_12 = 32.4; [L30] float var_1_13 = 1.2; [L31] float var_1_14 = 64.8; [L32] float var_1_15 = 127.3; [L33] float var_1_16 = 4.02; [L34] signed char var_1_17 = -32; [L35] unsigned long int last_1_var_1_9 = 256; VAL [isInitial=0, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L92] isInitial = 1 [L93] FCALL initially() [L94] int k_loop; [L95] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L95] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L96] CALL updateLastVariables() [L85] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L59] var_1_2 = __VERIFIER_nondet_uchar() [L60] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L60] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L61] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L61] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L62] var_1_3 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L63] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L64] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L64] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L65] var_1_7 = __VERIFIER_nondet_short() [L66] CALL assume_abort_if_not(var_1_7 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L66] RET assume_abort_if_not(var_1_7 >= -32768) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L67] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L67] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L68] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L68] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L69] var_1_10 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_10 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L70] RET assume_abort_if_not(var_1_10 >= -1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L71] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L71] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L72] var_1_11 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L73] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L74] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L74] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L75] var_1_13 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L76] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L77] var_1_14 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L78] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L79] var_1_15 = __VERIFIER_nondet_float() [L80] 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_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L80] 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_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L81] var_1_16 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L82] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L97] RET updateVariables() [L98] CALL step() [L39] COND TRUE (var_1_10 - var_1_11) >= last_1_var_1_9 [L40] var_1_9 = (var_1_11 + 2u) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L42] COND FALSE !(\read(var_1_2)) [L45] var_1_12 = ((((var_1_15) > (var_1_16)) ? (var_1_15) : (var_1_16))) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L47] var_1_17 = -4 VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L48] COND FALSE !(\read(var_1_2)) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L98] RET step() [L99] CALL, EXPR property() [L88-L89] return (((var_1_2 ? ((var_1_3 && (var_1_12 <= (- 63.9f))) ? ((var_1_12 >= var_1_12) ? (((var_1_9 / var_1_7) <= var_1_9) ? (var_1_1 == ((signed long int) var_1_9)) : 1) : 1) : 1) : 1) && (((var_1_10 - var_1_11) >= last_1_var_1_9) ? (var_1_9 == ((unsigned long int) (var_1_11 + 2u))) : 1)) && (var_1_2 ? (var_1_12 == ((float) ((((((((var_1_13 - var_1_14) < 0 ) ? -(var_1_13 - var_1_14) : (var_1_13 - var_1_14)))) < (((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) ? (((((var_1_13 - var_1_14) < 0 ) ? -(var_1_13 - var_1_14) : (var_1_13 - var_1_14)))) : (((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16)))))))) : (var_1_12 == ((float) ((((var_1_15) > (var_1_16)) ? (var_1_15) : (var_1_16))))))) && (var_1_17 == ((signed char) -4)) ; VAL [\result=0, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 145 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1232/1260 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 [2024-11-23 18:26:32,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:26:36,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:26:36,253 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 18:26:36,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:26:36,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:26:36,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:26:36,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:26:36,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:26:36,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:26:36,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:26:36,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:26:36,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:26:36,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:26:36,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:26:36,298 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:26:36,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:26:36,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:26:36,298 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:26:36,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:26:36,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:26:36,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:26:36,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:26:36,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:26:36,299 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 18:26:36,299 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 18:26:36,300 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 18:26:36,300 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:26:36,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:26:36,300 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:26:36,300 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:26:36,300 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:26:36,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:36,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:36,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:36,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:36,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:26:36,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:36,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:36,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:36,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:36,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:26:36,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:26:36,303 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:26:36,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:26:36,303 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 18:26:36,304 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 18:26:36,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:26:36,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:26:36,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:26:36,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:26:36,304 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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 -> 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 [2024-11-23 18:26:36,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:26:36,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:26:36,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:26:36,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:26:36,744 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:26:36,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-23 18:26:40,147 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data/14af16ed2/0738faac2e0741669f25ff85206bf067/FLAG2e75440b0 [2024-11-23 18:26:40,548 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:26:40,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-23 18:26:40,560 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data/14af16ed2/0738faac2e0741669f25ff85206bf067/FLAG2e75440b0 [2024-11-23 18:26:40,588 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/data/14af16ed2/0738faac2e0741669f25ff85206bf067 [2024-11-23 18:26:40,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:26:40,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:26:40,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:40,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:26:40,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:26:40,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:40" (1/1) ... [2024-11-23 18:26:40,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701437e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:40, skipping insertion in model container [2024-11-23 18:26:40,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:40" (1/1) ... [2024-11-23 18:26:40,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:26:40,844 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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2024-11-23 18:26:40,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:40,954 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:26:40,969 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_7f62599e-2588-4c6b-a6e2-cc2cf814db68/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2024-11-23 18:26:41,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:41,042 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:26:41,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41 WrapperNode [2024-11-23 18:26:41,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:41,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:41,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:26:41,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:26:41,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,113 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-11-23 18:26:41,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:41,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:26:41,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:26:41,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:26:41,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,136 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,159 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]. [2024-11-23 18:26:41,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,177 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:26:41,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:26:41,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:26:41,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:26:41,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (1/1) ... [2024-11-23 18:26:41,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:41,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:41,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:26:41,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:26:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:26:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 18:26:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:26:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:26:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:26:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:26:41,439 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:26:41,442 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:26:42,325 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-23 18:26:42,326 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:26:42,339 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:26:42,340 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 18:26:42,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:42 BoogieIcfgContainer [2024-11-23 18:26:42,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:26:42,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:26:42,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:26:42,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:26:42,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:26:40" (1/3) ... [2024-11-23 18:26:42,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2347dfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:42, skipping insertion in model container [2024-11-23 18:26:42,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:41" (2/3) ... [2024-11-23 18:26:42,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2347dfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:42, skipping insertion in model container [2024-11-23 18:26:42,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:42" (3/3) ... [2024-11-23 18:26:42,356 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-23 18:26:42,377 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:26:42,379 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:26:42,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:26:42,497 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;@55ed2996, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:26:42,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:26:42,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 18:26:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:26:42,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:42,521 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:42,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:42,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:42,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1898402416, now seen corresponding path program 1 times [2024-11-23 18:26:42,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:26:42,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537433361] [2024-11-23 18:26:42,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:42,553 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 [2024-11-23 18:26:42,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:26:42,560 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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) [2024-11-23 18:26:42,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:26:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:43,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:26:43,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:26:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-23 18:26:43,230 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:26:43,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:26:43,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537433361] [2024-11-23 18:26:43,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537433361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:43,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:43,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:26:43,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110525984] [2024-11-23 18:26:43,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:43,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:26:43,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:26:43,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:26:43,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:43,270 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 18:26:43,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:43,312 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2024-11-23 18:26:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:26:43,314 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2024-11-23 18:26:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:43,326 INFO L225 Difference]: With dead ends: 99 [2024-11-23 18:26:43,328 INFO L226 Difference]: Without dead ends: 47 [2024-11-23 18:26:43,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:43,338 INFO L435 NwaCegarLoop]: 71 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, 71 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 [2024-11-23 18:26:43,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:26:43,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-23 18:26:43,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-23 18:26:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 18:26:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2024-11-23 18:26:43,412 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 98 [2024-11-23 18:26:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:43,413 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2024-11-23 18:26:43,413 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 18:26:43,414 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2024-11-23 18:26:43,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:26:43,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:43,422 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:43,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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)] Ended with exit code 0 [2024-11-23 18:26:43,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:26:43,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:43,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:43,624 INFO L85 PathProgramCache]: Analyzing trace with hash -974917370, now seen corresponding path program 1 times [2024-11-23 18:26:43,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:26:43,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845077498] [2024-11-23 18:26:43,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:43,625 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 [2024-11-23 18:26:43,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:26:43,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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) [2024-11-23 18:26:43,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:26:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:44,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 18:26:44,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:26:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-23 18:26:44,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:26:44,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:26:44,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845077498] [2024-11-23 18:26:44,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845077498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:44,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:44,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:26:44,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666639125] [2024-11-23 18:26:44,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:44,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:26:44,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:26:44,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:26:44,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:26:44,159 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-23 18:26:44,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:44,365 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2024-11-23 18:26:44,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:26:44,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-23 18:26:44,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:44,368 INFO L225 Difference]: With dead ends: 102 [2024-11-23 18:26:44,369 INFO L226 Difference]: Without dead ends: 58 [2024-11-23 18:26:44,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:26:44,371 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 15 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:44,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 126 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:26:44,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-23 18:26:44,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2024-11-23 18:26:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 18:26:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-23 18:26:44,389 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 98 [2024-11-23 18:26:44,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:44,393 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-23 18:26:44,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-23 18:26:44,394 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2024-11-23 18:26:44,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:26:44,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:44,398 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:44,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:26:44,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:26:44,599 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:44,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:44,600 INFO L85 PathProgramCache]: Analyzing trace with hash 800089992, now seen corresponding path program 1 times [2024-11-23 18:26:44,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:26:44,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681279078] [2024-11-23 18:26:44,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:44,603 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 [2024-11-23 18:26:44,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:26:44,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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) [2024-11-23 18:26:44,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:26:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:45,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 18:26:45,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:29:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-23 18:29:47,007 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:29:47,008 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:29:47,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681279078] [2024-11-23 18:29:47,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681279078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:29:47,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:29:47,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:29:47,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168859171] [2024-11-23 18:29:47,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:29:47,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 18:29:47,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:29:47,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 18:29:47,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:29:47,017 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-23 18:29:50,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:29:50,373 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2024-11-23 18:29:50,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:29:50,375 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-23 18:29:50,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:29:50,377 INFO L225 Difference]: With dead ends: 144 [2024-11-23 18:29:50,377 INFO L226 Difference]: Without dead ends: 98 [2024-11-23 18:29:50,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-23 18:29:50,381 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 116 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:29:50,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 282 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 18:29:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-23 18:29:50,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 87. [2024-11-23 18:29:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 60 states have internal predecessors, (71), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 18:29:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2024-11-23 18:29:50,402 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 98 [2024-11-23 18:29:50,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:29:50,403 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2024-11-23 18:29:50,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-23 18:29:50,403 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2024-11-23 18:29:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 18:29:50,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:29:50,406 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:29:50,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:29:50,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:29:50,607 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:29:50,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:29:50,608 INFO L85 PathProgramCache]: Analyzing trace with hash -9256634, now seen corresponding path program 1 times [2024-11-23 18:29:50,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:29:50,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629085916] [2024-11-23 18:29:50,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:29:50,609 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 [2024-11-23 18:29:50,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:29:50,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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) [2024-11-23 18:29:50,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:29:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:29:50,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 18:29:50,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:41:01,449 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-23 18:41:01,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:41:01,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:41:01,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629085916] [2024-11-23 18:41:01,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629085916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:01,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:01,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:41:01,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534695620] [2024-11-23 18:41:01,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:01,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 18:41:01,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:41:01,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 18:41:01,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:41:01,456 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-23 18:41:04,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:04,301 INFO L93 Difference]: Finished difference Result 183 states and 247 transitions. [2024-11-23 18:41:04,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 18:41:04,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-23 18:41:04,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:04,306 INFO L225 Difference]: With dead ends: 183 [2024-11-23 18:41:04,307 INFO L226 Difference]: Without dead ends: 99 [2024-11-23 18:41:04,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:41:04,311 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 98 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:04,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 285 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 18:41:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-23 18:41:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2024-11-23 18:41:04,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 63 states have internal predecessors, (73), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 18:41:04,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 121 transitions. [2024-11-23 18:41:04,333 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 121 transitions. Word has length 98 [2024-11-23 18:41:04,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:04,334 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 121 transitions. [2024-11-23 18:41:04,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-23 18:41:04,334 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 121 transitions. [2024-11-23 18:41:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 18:41:04,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:04,336 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:04,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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)] Ended with exit code 0 [2024-11-23 18:41:04,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:41:04,537 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:04,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:04,538 INFO L85 PathProgramCache]: Analyzing trace with hash -734930464, now seen corresponding path program 1 times [2024-11-23 18:41:04,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:41:04,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638029654] [2024-11-23 18:41:04,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:04,538 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 [2024-11-23 18:41:04,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:41:04,540 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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) [2024-11-23 18:41:04,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f62599e-2588-4c6b-a6e2-cc2cf814db68/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 [2024-11-23 18:41:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:04,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 18:41:04,873 INFO L279 TraceCheckSpWp]: Computing forward predicates...