./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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 c993de4d7b17f04c627648963789a0b670b012caff83d667499fad77066da826 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:48:58,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:48:58,964 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:48:58,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:48:58,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:48:58,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:48:58,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:48:58,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:48:58,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:48:58,997 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:48:58,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:48:58,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:48:58,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:48:58,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:48:58,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:48:58,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:48:58,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:48:58,998 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:48:58,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:48:58,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:48:58,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:48:58,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:48:58,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:48:58,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:48:58,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:48:58,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:48:58,999 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:48:58,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:48:59,000 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:48:59,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:59,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:59,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:59,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:59,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:48:59,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:59,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:59,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:59,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:59,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:48:59,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:48:59,001 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:48:59,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:48:59,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:48:59,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:48:59,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:48:59,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:48:59,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:48:59,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:48:59,002 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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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 -> c993de4d7b17f04c627648963789a0b670b012caff83d667499fad77066da826 [2024-11-24 00:48:59,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:48:59,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:48:59,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:48:59,313 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:48:59,313 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:48:59,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i [2024-11-24 00:49:02,320 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data/1563000c7/7367a38e4c444f46b4e0c653fb7eda22/FLAGf89f5f017 [2024-11-24 00:49:02,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:49:02,647 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i [2024-11-24 00:49:02,659 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data/1563000c7/7367a38e4c444f46b4e0c653fb7eda22/FLAGf89f5f017 [2024-11-24 00:49:02,682 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data/1563000c7/7367a38e4c444f46b4e0c653fb7eda22 [2024-11-24 00:49:02,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:49:02,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:49:02,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:49:02,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:49:02,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:49:02,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:02" (1/1) ... [2024-11-24 00:49:02,702 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af4676a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:02, skipping insertion in model container [2024-11-24 00:49:02,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:02" (1/1) ... [2024-11-24 00:49:02,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:49:02,898 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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i[915,928] [2024-11-24 00:49:02,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:49:02,956 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:49:02,967 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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i[915,928] [2024-11-24 00:49:02,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:49:03,004 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:49:03,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03 WrapperNode [2024-11-24 00:49:03,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:49:03,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:49:03,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:49:03,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:49:03,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,043 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-11-24 00:49:03,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:49:03,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:49:03,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:49:03,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:49:03,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,056 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,068 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:49:03,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,074 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:49:03,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:49:03,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:49:03,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:49:03,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (1/1) ... [2024-11-24 00:49:03,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:03,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:03,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:49:03,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:49:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:49:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:49:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:49:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:49:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:49:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:49:03,229 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:49:03,231 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:49:03,468 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 00:49:03,468 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:49:03,479 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:49:03,479 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:49:03,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:03 BoogieIcfgContainer [2024-11-24 00:49:03,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:49:03,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:49:03,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:49:03,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:49:03,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:49:02" (1/3) ... [2024-11-24 00:49:03,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3c4e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:03, skipping insertion in model container [2024-11-24 00:49:03,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:03" (2/3) ... [2024-11-24 00:49:03,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3c4e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:03, skipping insertion in model container [2024-11-24 00:49:03,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:03" (3/3) ... [2024-11-24 00:49:03,491 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-40.i [2024-11-24 00:49:03,509 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:49:03,511 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-40.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:49:03,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:49:03,617 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;@4437f3fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:49:03,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:49:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:49:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:49:03,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:03,634 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:03,634 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:03,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:03,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1832023352, now seen corresponding path program 1 times [2024-11-24 00:49:03,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:03,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310110072] [2024-11-24 00:49:03,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:03,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:03,939 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-24 00:49:03,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:03,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310110072] [2024-11-24 00:49:03,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310110072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:03,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097313157] [2024-11-24 00:49:03,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:03,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:03,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:03,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:49:03,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:49:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:04,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:49:04,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-24 00:49:04,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:04,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097313157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:04,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:04,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:49:04,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570892052] [2024-11-24 00:49:04,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:04,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:49:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:04,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:49:04,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:49:04,218 INFO L87 Difference]: Start difference. First operand has 50 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-24 00:49:04,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:04,243 INFO L93 Difference]: Finished difference Result 93 states and 155 transitions. [2024-11-24 00:49:04,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:49:04,246 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-24 00:49:04,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:04,252 INFO L225 Difference]: With dead ends: 93 [2024-11-24 00:49:04,252 INFO L226 Difference]: Without dead ends: 46 [2024-11-24 00:49:04,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:49:04,259 INFO L435 NwaCegarLoop]: 66 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, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:04,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:04,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-24 00:49:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-24 00:49:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:49:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2024-11-24 00:49:04,308 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 97 [2024-11-24 00:49:04,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:04,309 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2024-11-24 00:49:04,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-24 00:49:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2024-11-24 00:49:04,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:49:04,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:04,316 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:04,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:49:04,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:04,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:04,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash -908538306, now seen corresponding path program 1 times [2024-11-24 00:49:04,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:04,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415275567] [2024-11-24 00:49:04,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:04,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 00:49:04,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:04,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415275567] [2024-11-24 00:49:04,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415275567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:04,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:04,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:49:04,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194188482] [2024-11-24 00:49:04,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:04,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:49:04,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:04,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:49:04,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:49:04,829 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 00:49:04,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:04,890 INFO L93 Difference]: Finished difference Result 99 states and 140 transitions. [2024-11-24 00:49:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:49:04,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-11-24 00:49:04,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:04,896 INFO L225 Difference]: With dead ends: 99 [2024-11-24 00:49:04,896 INFO L226 Difference]: Without dead ends: 56 [2024-11-24 00:49:04,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:49:04,899 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 14 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 124 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 [2024-11-24 00:49:04,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 124 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-24 00:49:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2024-11-24 00:49:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:49:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2024-11-24 00:49:04,915 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 97 [2024-11-24 00:49:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:04,917 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2024-11-24 00:49:04,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 00:49:04,917 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2024-11-24 00:49:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:49:04,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:04,920 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:04,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:49:04,920 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:04,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:04,921 INFO L85 PathProgramCache]: Analyzing trace with hash 866469056, now seen corresponding path program 1 times [2024-11-24 00:49:04,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:04,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656079715] [2024-11-24 00:49:04,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:04,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:49:05,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [858743493] [2024-11-24 00:49:05,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:05,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:05,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:05,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:49:05,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:49:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:49:05,216 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:49:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:49:05,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:49:05,326 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:49:05,328 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:49:05,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:49:05,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:05,536 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-24 00:49:05,599 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:49:05,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:49:05 BoogieIcfgContainer [2024-11-24 00:49:05,603 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:49:05,603 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:49:05,603 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:49:05,603 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:49:05,604 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:03" (3/4) ... [2024-11-24 00:49:05,606 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:49:05,607 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:49:05,608 INFO L158 Benchmark]: Toolchain (without parser) took 2922.45ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 33.5MB in the end (delta: 58.5MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2024-11-24 00:49:05,608 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:49:05,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.86ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 79.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:49:05,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.56ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:49:05,609 INFO L158 Benchmark]: Boogie Preprocessor took 40.13ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 75.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:49:05,610 INFO L158 Benchmark]: RCFGBuilder took 394.79ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 61.7MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:49:05,610 INFO L158 Benchmark]: TraceAbstraction took 2120.59ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 33.6MB in the end (delta: 27.8MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2024-11-24 00:49:05,610 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 117.4MB. Free memory was 33.6MB in the beginning and 33.5MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:49:05,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.86ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 79.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.56ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.13ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 75.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 394.79ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 61.7MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2120.59ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 33.6MB in the end (delta: 27.8MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 117.4MB. Free memory was 33.6MB in the beginning and 33.5MB in the end (delta: 21.1kB). 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 78, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 45, overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 80. 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() [L95] 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] [L95] RET updateLastVariables() [L96] 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] [L96] RET updateVariables() [L97] 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] [L97] RET step() [L98] 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] [L98] RET, EXPR property() [L98] 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, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 190 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 138 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 227 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 [2024-11-24 00:49:05,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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 c993de4d7b17f04c627648963789a0b670b012caff83d667499fad77066da826 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:49:08,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:49:08,520 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:49:08,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:49:08,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:49:08,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:49:08,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:49:08,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:49:08,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:49:08,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:49:08,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:49:08,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:49:08,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:49:08,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:49:08,576 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:49:08,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:49:08,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:49:08,577 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:49:08,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:49:08,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:49:08,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:49:08,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:49:08,578 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:49:08,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:49:08,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:49:08,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:08,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:49:08,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:49:08,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:49:08,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:49:08,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:08,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:49:08,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:49:08,579 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:49:08,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:49:08,580 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:49:08,580 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:49:08,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:49:08,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:49:08,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:49:08,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:49:08,580 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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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 -> c993de4d7b17f04c627648963789a0b670b012caff83d667499fad77066da826 [2024-11-24 00:49:08,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:49:08,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:49:08,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:49:08,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:49:08,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:49:08,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i [2024-11-24 00:49:12,144 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data/9650c3fb6/b3bb2bd2b53d4b96983cf234b037db35/FLAG82efcf993 [2024-11-24 00:49:12,406 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:49:12,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i [2024-11-24 00:49:12,420 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data/9650c3fb6/b3bb2bd2b53d4b96983cf234b037db35/FLAG82efcf993 [2024-11-24 00:49:12,447 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/data/9650c3fb6/b3bb2bd2b53d4b96983cf234b037db35 [2024-11-24 00:49:12,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:49:12,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:49:12,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:49:12,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:49:12,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:49:12,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370d18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12, skipping insertion in model container [2024-11-24 00:49:12,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:49:12,664 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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i[915,928] [2024-11-24 00:49:12,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:49:12,739 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:49:12,751 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_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-40.i[915,928] [2024-11-24 00:49:12,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:49:12,805 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:49:12,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12 WrapperNode [2024-11-24 00:49:12,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:49:12,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:49:12,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:49:12,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:49:12,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,844 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-11-24 00:49:12,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:49:12,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:49:12,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:49:12,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:49:12,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,857 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,870 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:49:12,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,879 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:49:12,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:49:12,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:49:12,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:49:12,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (1/1) ... [2024-11-24 00:49:12,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:12,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:12,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:49:12,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:49:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:49:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:49:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:49:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:49:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:49:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:49:13,044 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:49:13,046 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:49:13,719 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 00:49:13,720 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:49:13,732 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:49:13,732 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:49:13,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:13 BoogieIcfgContainer [2024-11-24 00:49:13,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:49:13,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:49:13,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:49:13,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:49:13,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:49:12" (1/3) ... [2024-11-24 00:49:13,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd55ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:13, skipping insertion in model container [2024-11-24 00:49:13,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:12" (2/3) ... [2024-11-24 00:49:13,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd55ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:13, skipping insertion in model container [2024-11-24 00:49:13,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:13" (3/3) ... [2024-11-24 00:49:13,750 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-40.i [2024-11-24 00:49:13,767 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:49:13,768 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-40.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:49:13,827 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:49:13,841 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;@5b2df6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:49:13,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:49:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:49:13,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:49:13,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:13,858 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:13,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:13,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:13,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1832023352, now seen corresponding path program 1 times [2024-11-24 00:49:13,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:13,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143679356] [2024-11-24 00:49:13,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:13,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:13,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:13,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:13,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:49:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:14,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:49:14,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:14,295 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-24 00:49:14,295 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:14,298 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:14,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143679356] [2024-11-24 00:49:14,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143679356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:14,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:14,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:49:14,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161474445] [2024-11-24 00:49:14,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:14,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:49:14,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:14,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:49:14,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:49:14,326 INFO L87 Difference]: Start difference. First operand has 50 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-11-24 00:49:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:14,347 INFO L93 Difference]: Finished difference Result 93 states and 155 transitions. [2024-11-24 00:49:14,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:49:14,349 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 97 [2024-11-24 00:49:14,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:14,356 INFO L225 Difference]: With dead ends: 93 [2024-11-24 00:49:14,356 INFO L226 Difference]: Without dead ends: 46 [2024-11-24 00:49:14,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:49:14,362 INFO L435 NwaCegarLoop]: 66 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, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:14,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:14,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-24 00:49:14,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-24 00:49:14,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:49:14,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2024-11-24 00:49:14,401 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 97 [2024-11-24 00:49:14,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:14,401 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2024-11-24 00:49:14,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-11-24 00:49:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2024-11-24 00:49:14,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:49:14,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:14,406 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] [2024-11-24 00:49:14,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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 [2024-11-24 00:49:14,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:14,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:14,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:14,608 INFO L85 PathProgramCache]: Analyzing trace with hash -908538306, now seen corresponding path program 1 times [2024-11-24 00:49:14,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:14,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870084617] [2024-11-24 00:49:14,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:14,609 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 [2024-11-24 00:49:14,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:14,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:14,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:49:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:15,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:49:15,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:15,088 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 00:49:15,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:15,089 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:15,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870084617] [2024-11-24 00:49:15,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870084617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:15,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:15,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:49:15,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818500908] [2024-11-24 00:49:15,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:15,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:49:15,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:15,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:49:15,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:49:15,092 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 00:49:15,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:15,343 INFO L93 Difference]: Finished difference Result 99 states and 140 transitions. [2024-11-24 00:49:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:49:15,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-11-24 00:49:15,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:15,346 INFO L225 Difference]: With dead ends: 99 [2024-11-24 00:49:15,346 INFO L226 Difference]: Without dead ends: 56 [2024-11-24 00:49:15,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:49:15,347 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 14 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 123 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 [2024-11-24 00:49:15,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 123 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:49:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-24 00:49:15,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2024-11-24 00:49:15,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:49:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2024-11-24 00:49:15,358 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 97 [2024-11-24 00:49:15,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:15,360 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2024-11-24 00:49:15,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 00:49:15,360 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2024-11-24 00:49:15,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:49:15,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:15,363 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:15,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 00:49:15,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:15,564 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:15,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:15,564 INFO L85 PathProgramCache]: Analyzing trace with hash 866469056, now seen corresponding path program 1 times [2024-11-24 00:49:15,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:15,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526998916] [2024-11-24 00:49:15,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:15,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:15,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:15,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:15,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 00:49:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:15,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:49:15,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:51:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-24 00:51:47,915 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:51:47,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:51:47,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526998916] [2024-11-24 00:51:47,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526998916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:51:47,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:51:47,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:51:47,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138548279] [2024-11-24 00:51:47,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:51:47,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:51:47,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:51:47,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:51:47,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:51:47,917 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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) [2024-11-24 00:51:50,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:51:50,783 INFO L93 Difference]: Finished difference Result 140 states and 193 transitions. [2024-11-24 00:51:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:51:50,785 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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 97 [2024-11-24 00:51:50,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:51:50,787 INFO L225 Difference]: With dead ends: 140 [2024-11-24 00:51:50,787 INFO L226 Difference]: Without dead ends: 95 [2024-11-24 00:51:50,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:51:50,793 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 94 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:51:50,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 269 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 00:51:50,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-24 00:51:50,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2024-11-24 00:51:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 58 states have internal predecessors, (69), 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) [2024-11-24 00:51:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2024-11-24 00:51:50,819 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 97 [2024-11-24 00:51:50,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:51:50,820 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2024-11-24 00:51:50,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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) [2024-11-24 00:51:50,820 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2024-11-24 00:51:50,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:51:50,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:50,822 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:51:50,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-24 00:51:51,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:51:51,023 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:51,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:51,024 INFO L85 PathProgramCache]: Analyzing trace with hash 57122430, now seen corresponding path program 1 times [2024-11-24 00:51:51,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:51:51,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215996886] [2024-11-24 00:51:51,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:51,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:51:51,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:51:51,029 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:51:51,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 00:51:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:51,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:51:51,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:01:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-24 01:01:36,458 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:01:36,458 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:01:36,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215996886] [2024-11-24 01:01:36,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215996886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:36,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:36,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:01:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258645702] [2024-11-24 01:01:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:36,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:01:36,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:01:36,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:01:36,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:01:36,460 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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) [2024-11-24 01:01:38,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:38,727 INFO L93 Difference]: Finished difference Result 178 states and 242 transitions. [2024-11-24 01:01:38,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:01:38,729 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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 97 [2024-11-24 01:01:38,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:38,733 INFO L225 Difference]: With dead ends: 178 [2024-11-24 01:01:38,733 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 01:01:38,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:01:38,735 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 75 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:38,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 268 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:01:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 01:01:38,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2024-11-24 01:01:38,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 61 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) [2024-11-24 01:01:38,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2024-11-24 01:01:38,751 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 97 [2024-11-24 01:01:38,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:38,752 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2024-11-24 01:01:38,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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) [2024-11-24 01:01:38,752 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2024-11-24 01:01:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 01:01:38,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:38,754 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] [2024-11-24 01:01:38,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/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 [2024-11-24 01:01:38,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:01:38,955 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:38,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1322820519, now seen corresponding path program 1 times [2024-11-24 01:01:38,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:01:38,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128401492] [2024-11-24 01:01:38,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:38,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:01:38,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:01:38,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:01:38,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e32e6f-2bd0-4f8f-aca8-4e4a085b98ce/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 01:01:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:39,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:01:39,241 INFO L279 TraceCheckSpWp]: Computing forward predicates...