./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB --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 fcc09d49231b686aa277ecab6a7e97333755471ed05bf82f2888dada5ad54255 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:26:06,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:26:06,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:26:06,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:26:06,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:26:06,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:26:06,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:26:06,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:26:06,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:26:06,931 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:26:06,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:26:06,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:26:06,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:26:06,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:26:06,932 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:26:06,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:26:06,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:26:06,933 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:26:06,933 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:26:06,933 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:26:06,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:26:06,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:26:06,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:26:06,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:26:06,934 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:26:06,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:26:06,934 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:26:06,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:26:06,934 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:26:06,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:26:06,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:26:06,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:26:06,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:06,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:26:06,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:26:06,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:26:06,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:26:06,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:06,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:26:06,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:26:06,936 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:26:06,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:26:06,937 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:26:06,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:26:06,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:26:06,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:26:06,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:26:06,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:26:06,937 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_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> fcc09d49231b686aa277ecab6a7e97333755471ed05bf82f2888dada5ad54255 [2024-11-27 20:26:07,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:26:07,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:26:07,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:26:07,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:26:07,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:26:07,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i [2024-11-27 20:26:10,260 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data/f8ca0e0d2/8e92f34f2841461d868afc05f58c968c/FLAG4a05dcaed [2024-11-27 20:26:10,587 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:26:10,588 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i [2024-11-27 20:26:10,603 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data/f8ca0e0d2/8e92f34f2841461d868afc05f58c968c/FLAG4a05dcaed [2024-11-27 20:26:10,625 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data/f8ca0e0d2/8e92f34f2841461d868afc05f58c968c [2024-11-27 20:26:10,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:26:10,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:26:10,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:26:10,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:26:10,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:26:10,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:10,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c19a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10, skipping insertion in model container [2024-11-27 20:26:10,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:10,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:26:10,837 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_74b1aec2-90e4-4c70-bb8e-a017972cae2f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i[915,928] [2024-11-27 20:26:10,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:26:10,914 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:26:10,925 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_74b1aec2-90e4-4c70-bb8e-a017972cae2f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i[915,928] [2024-11-27 20:26:10,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:26:10,966 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:26:10,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10 WrapperNode [2024-11-27 20:26:10,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:26:10,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:26:10,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:26:10,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:26:10,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:10,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,021 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129 [2024-11-27 20:26:11,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:26:11,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:26:11,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:26:11,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:26:11,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,046 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,058 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]. [2024-11-27 20:26:11,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:26:11,074 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:26:11,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:26:11,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:26:11,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (1/1) ... [2024-11-27 20:26:11,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:11,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:11,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:26:11,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:26:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:26:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:26:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:26:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:26:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:26:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:26:11,235 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:26:11,237 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:26:11,577 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-27 20:26:11,578 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:26:11,587 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:26:11,588 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:26:11,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:11 BoogieIcfgContainer [2024-11-27 20:26:11,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:26:11,592 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:26:11,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:26:11,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:26:11,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:26:10" (1/3) ... [2024-11-27 20:26:11,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73964708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:26:11, skipping insertion in model container [2024-11-27 20:26:11,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:10" (2/3) ... [2024-11-27 20:26:11,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73964708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:26:11, skipping insertion in model container [2024-11-27 20:26:11,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:11" (3/3) ... [2024-11-27 20:26:11,602 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-91.i [2024-11-27 20:26:11,621 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:26:11,623 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-91.i that has 2 procedures, 56 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:26:11,706 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:26:11,722 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;@72d19b07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:26:11,722 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:26:11,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:26:11,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-27 20:26:11,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:11,737 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:11,738 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:26:11,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:11,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1008999989, now seen corresponding path program 1 times [2024-11-27 20:26:11,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:11,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479021569] [2024-11-27 20:26:11,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:11,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-27 20:26:12,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:12,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479021569] [2024-11-27 20:26:12,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479021569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:26:12,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074979267] [2024-11-27 20:26:12,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:12,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:12,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:12,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:26:12,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:26:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:12,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:26:12,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:26:12,251 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-27 20:26:12,251 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:26:12,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074979267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:26:12,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:26:12,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:26:12,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823395382] [2024-11-27 20:26:12,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:26:12,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:26:12,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:12,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:26:12,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:26:12,285 INFO L87 Difference]: Start difference. First operand has 56 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:26:12,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:12,317 INFO L93 Difference]: Finished difference Result 109 states and 172 transitions. [2024-11-27 20:26:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:26:12,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2024-11-27 20:26:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:12,328 INFO L225 Difference]: With dead ends: 109 [2024-11-27 20:26:12,328 INFO L226 Difference]: Without dead ends: 52 [2024-11-27 20:26:12,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:26:12,337 INFO L435 NwaCegarLoop]: 79 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, 79 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 [2024-11-27 20:26:12,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:26:12,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-27 20:26:12,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-27 20:26:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.358974358974359) internal successors, (53), 39 states have internal predecessors, (53), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:26:12,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2024-11-27 20:26:12,391 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 76 [2024-11-27 20:26:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:12,391 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2024-11-27 20:26:12,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:26:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2024-11-27 20:26:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-27 20:26:12,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:12,395 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:12,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:26:12,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:12,599 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:26:12,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:12,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1142382793, now seen corresponding path program 1 times [2024-11-27 20:26:12,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:12,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599661984] [2024-11-27 20:26:12,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:12,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:26:14,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:14,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599661984] [2024-11-27 20:26:14,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599661984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:26:14,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:26:14,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:26:14,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255864062] [2024-11-27 20:26:14,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:26:14,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:26:14,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:14,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:26:14,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:26:14,216 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:26:18,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:26:22,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:26:23,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:23,561 INFO L93 Difference]: Finished difference Result 162 states and 230 transitions. [2024-11-27 20:26:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:26:23,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2024-11-27 20:26:23,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:23,563 INFO L225 Difference]: With dead ends: 162 [2024-11-27 20:26:23,564 INFO L226 Difference]: Without dead ends: 113 [2024-11-27 20:26:23,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:26:23,567 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 93 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:23,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 299 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2024-11-27 20:26:23,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-27 20:26:23,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 55. [2024-11-27 20:26:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:26:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2024-11-27 20:26:23,579 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 76 [2024-11-27 20:26:23,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:23,581 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2024-11-27 20:26:23,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:26:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2024-11-27 20:26:23,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-27 20:26:23,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:23,583 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:23,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:26:23,584 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:26:23,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:23,584 INFO L85 PathProgramCache]: Analyzing trace with hash 333036167, now seen corresponding path program 1 times [2024-11-27 20:26:23,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:23,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836258438] [2024-11-27 20:26:23,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:23,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:26:23,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16006881] [2024-11-27 20:26:23,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:23,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:23,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:23,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:26:23,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:26:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:26:23,781 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:26:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:26:23,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:26:23,882 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:26:23,884 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:26:23,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:26:24,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-27 20:26:24,091 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-27 20:26:24,179 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:26:24,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:26:24 BoogieIcfgContainer [2024-11-27 20:26:24,185 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:26:24,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:26:24,186 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:26:24,186 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:26:24,187 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:11" (3/4) ... [2024-11-27 20:26:24,191 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:26:24,193 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:26:24,194 INFO L158 Benchmark]: Toolchain (without parser) took 13562.29ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 94.6MB in the beginning and 286.9MB in the end (delta: -192.2MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-11-27 20:26:24,194 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:26:24,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.34ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 82.0MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:26:24,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.22ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:26:24,196 INFO L158 Benchmark]: Boogie Preprocessor took 47.70ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:26:24,197 INFO L158 Benchmark]: RCFGBuilder took 514.03ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 61.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:26:24,198 INFO L158 Benchmark]: TraceAbstraction took 12593.32ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 60.7MB in the beginning and 286.9MB in the end (delta: -226.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-11-27 20:26:24,198 INFO L158 Benchmark]: Witness Printer took 6.96ms. Allocated memory is still 352.3MB. Free memory was 286.9MB in the beginning and 286.9MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:26:24,201 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.34ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 82.0MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.22ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.70ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.03ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 61.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12593.32ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 60.7MB in the beginning and 286.9MB in the end (delta: -226.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 6.96ms. Allocated memory is still 352.3MB. Free memory was 286.9MB in the beginning and 286.9MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someBinaryFLOATComparisonOperation at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 100000000; [L23] signed short int var_1_5 = 1; [L24] signed short int var_1_8 = -128; [L25] signed short int var_1_9 = 1; [L26] float var_1_10 = 25.8; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 1; [L29] float var_1_13 = 16.45; [L30] unsigned long int var_1_14 = 200; [L31] unsigned short int var_1_15 = 32; [L32] unsigned short int var_1_16 = 256; VAL [isInitial=0, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-128, var_1_9=1] [L90] isInitial = 1 [L91] FCALL initially() [L92] int k_loop; [L93] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-128, var_1_9=1] [L93] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-128, var_1_9=1] [L94] FCALL updateLastVariables() [L95] CALL updateVariables() [L65] var_1_8 = __VERIFIER_nondet_short() [L66] CALL assume_abort_if_not(var_1_8 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=1] [L66] RET assume_abort_if_not(var_1_8 >= -32767) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=1] [L67] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=1] [L67] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=1] [L68] var_1_9 = __VERIFIER_nondet_short() [L69] CALL assume_abort_if_not(var_1_9 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L69] RET assume_abort_if_not(var_1_9 >= -32767) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L70] CALL assume_abort_if_not(var_1_9 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L70] RET assume_abort_if_not(var_1_9 <= 32766) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L71] var_1_11 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L72] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=129/5, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L73] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L73] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L74] var_1_12 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L75] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L76] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L76] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L77] var_1_13 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L78] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L79] var_1_16 = __VERIFIER_nondet_ushort() [L80] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L80] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L81] CALL assume_abort_if_not(var_1_16 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_16=-131069, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_16=-131069, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L81] RET assume_abort_if_not(var_1_16 <= 65534) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=200, var_1_15=32, var_1_16=-131069, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L95] RET updateVariables() [L96] CALL step() [L36] var_1_15 = var_1_16 [L37] var_1_14 = var_1_15 VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=0, var_1_14=3, var_1_15=-131069, var_1_16=-131069, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L38] COND FALSE !(\read(var_1_11)) [L49] var_1_10 = var_1_13 VAL [isInitial=1, var_1_10=2, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=3, var_1_15=-131069, var_1_16=-131069, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L51] COND FALSE !(var_1_10 >= 50.4f) VAL [isInitial=1, var_1_10=2, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=3, var_1_15=-131069, var_1_16=-131069, var_1_1=100000000, var_1_5=1, var_1_8=-32767, var_1_9=-32767] [L54] COND FALSE !(var_1_15 == (var_1_14 * var_1_15)) [L61] var_1_5 = var_1_8 VAL [isInitial=1, var_1_10=2, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=3, var_1_15=-131069, var_1_16=-131069, var_1_1=100000000, var_1_5=-32767, var_1_8=-32767, var_1_9=-32767] [L96] RET step() [L97] CALL, EXPR property() [L86] EXPR (((var_1_10 >= 50.4f) ? (var_1_1 == ((unsigned long int) ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : 1) && ((var_1_15 == (var_1_14 * var_1_15)) ? ((var_1_10 >= (var_1_10 + var_1_10)) ? (var_1_5 == ((signed short int) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_5 == ((signed short int) var_1_8))) : (var_1_5 == ((signed short int) var_1_8)))) && (var_1_11 ? (var_1_12 ? (((var_1_15 & var_1_14) == var_1_15) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_13))) : (var_1_10 == ((float) var_1_13))) : (var_1_10 == ((float) var_1_13))) VAL [isInitial=1, var_1_10=2, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=3, var_1_15=-131069, var_1_16=-131069, var_1_1=100000000, var_1_5=-32767, var_1_8=-32767, var_1_9=-32767] [L86-L87] return (((((var_1_10 >= 50.4f) ? (var_1_1 == ((unsigned long int) ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : 1) && ((var_1_15 == (var_1_14 * var_1_15)) ? ((var_1_10 >= (var_1_10 + var_1_10)) ? (var_1_5 == ((signed short int) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_5 == ((signed short int) var_1_8))) : (var_1_5 == ((signed short int) var_1_8)))) && (var_1_11 ? (var_1_12 ? (((var_1_15 & var_1_14) == var_1_15) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_13))) : (var_1_10 == ((float) var_1_13))) : (var_1_10 == ((float) var_1_13)))) && (var_1_14 == ((unsigned long int) var_1_15))) && (var_1_15 == ((unsigned short int) var_1_16)) ; [L97] RET, EXPR property() [L97] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=2, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=3, var_1_15=-131069, var_1_16=-131069, var_1_1=100000000, var_1_5=-32767, var_1_8=-32767, var_1_9=-32767] [L19] reach_error() VAL [isInitial=1, var_1_10=2, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=3, var_1_15=-131069, var_1_16=-131069, var_1_1=100000000, var_1_5=-32767, var_1_8=-32767, var_1_9=-32767] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 185 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 193 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 0 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 640/660 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 [2024-11-27 20:26:24,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB --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 fcc09d49231b686aa277ecab6a7e97333755471ed05bf82f2888dada5ad54255 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:26:26,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:26:27,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 20:26:27,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:26:27,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:26:27,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:26:27,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:26:27,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:26:27,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:26:27,149 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:26:27,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:26:27,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:26:27,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:26:27,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:26:27,150 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:26:27,150 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:26:27,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:26:27,150 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:26:27,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:26:27,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:26:27,151 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:26:27,157 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:26:27,157 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:26:27,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:26:27,158 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:26:27,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:26:27,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:27,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:26:27,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:26:27,158 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:26:27,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:26:27,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:27,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:26:27,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:26:27,159 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_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> fcc09d49231b686aa277ecab6a7e97333755471ed05bf82f2888dada5ad54255 [2024-11-27 20:26:27,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:26:27,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:26:27,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:26:27,470 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:26:27,470 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:26:27,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i [2024-11-27 20:26:30,397 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data/3b1116ba5/8f8b902d049a4d9e80df5b5b7f2a6ff8/FLAGfcc933995 [2024-11-27 20:26:30,662 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:26:30,663 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i [2024-11-27 20:26:30,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data/3b1116ba5/8f8b902d049a4d9e80df5b5b7f2a6ff8/FLAGfcc933995 [2024-11-27 20:26:30,968 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/data/3b1116ba5/8f8b902d049a4d9e80df5b5b7f2a6ff8 [2024-11-27 20:26:30,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:26:30,972 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:26:30,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:26:30,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:26:30,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:26:30,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:26:30" (1/1) ... [2024-11-27 20:26:30,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39694092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:30, skipping insertion in model container [2024-11-27 20:26:30,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:26:30" (1/1) ... [2024-11-27 20:26:31,007 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:26:31,179 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_74b1aec2-90e4-4c70-bb8e-a017972cae2f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i[915,928] [2024-11-27 20:26:31,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:26:31,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:26:31,271 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_74b1aec2-90e4-4c70-bb8e-a017972cae2f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-91.i[915,928] [2024-11-27 20:26:31,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:26:31,326 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:26:31,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31 WrapperNode [2024-11-27 20:26:31,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:26:31,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:26:31,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:26:31,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:26:31,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,377 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-27 20:26:31,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:26:31,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:26:31,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:26:31,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:26:31,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,415 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]. [2024-11-27 20:26:31,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,426 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:26:31,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:26:31,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:26:31,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:26:31,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (1/1) ... [2024-11-27 20:26:31,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:26:31,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:31,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:26:31,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:26:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:26:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:26:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:26:31,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:26:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:26:31,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:26:31,575 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:26:31,577 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:26:31,993 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-27 20:26:31,994 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:26:32,007 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:26:32,009 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:26:32,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:32 BoogieIcfgContainer [2024-11-27 20:26:32,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:26:32,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:26:32,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:26:32,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:26:32,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:26:30" (1/3) ... [2024-11-27 20:26:32,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d697d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:26:32, skipping insertion in model container [2024-11-27 20:26:32,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:26:31" (2/3) ... [2024-11-27 20:26:32,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d697d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:26:32, skipping insertion in model container [2024-11-27 20:26:32,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:32" (3/3) ... [2024-11-27 20:26:32,022 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-91.i [2024-11-27 20:26:32,040 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:26:32,041 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-91.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:26:32,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:26:32,125 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;@70b1dec7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:26:32,125 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:26:32,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:26:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-27 20:26:32,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:32,142 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:32,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:26:32,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:32,150 INFO L85 PathProgramCache]: Analyzing trace with hash -647194069, now seen corresponding path program 1 times [2024-11-27 20:26:32,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:26:32,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629436835] [2024-11-27 20:26:32,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:32,164 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 [2024-11-27 20:26:32,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:26:32,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:26:32,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:26:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:32,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:26:32,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:26:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 20:26:36,754 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:27:10,011 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:27:10,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629436835] [2024-11-27 20:27:10,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629436835] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:10,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:27:10,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-27 20:27:10,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157690348] [2024-11-27 20:27:10,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:27:10,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:27:10,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:27:10,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:27:10,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:27:10,037 INFO L87 Difference]: Start difference. First operand has 43 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:27:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:24,542 INFO L93 Difference]: Finished difference Result 134 states and 206 transitions. [2024-11-27 20:27:24,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:27:24,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-27 20:27:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:24,557 INFO L225 Difference]: With dead ends: 134 [2024-11-27 20:27:24,558 INFO L226 Difference]: Without dead ends: 82 [2024-11-27 20:27:24,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:27:24,564 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 114 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:24,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 313 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-27 20:27:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-27 20:27:24,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2024-11-27 20:27:24,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.18) internal successors, (59), 51 states have internal predecessors, (59), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:27:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2024-11-27 20:27:24,612 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 74 [2024-11-27 20:27:24,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:24,613 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2024-11-27 20:27:24,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:27:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2024-11-27 20:27:24,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-27 20:27:24,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:24,616 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:24,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:27:24,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:27:24,817 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:27:24,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:24,818 INFO L85 PathProgramCache]: Analyzing trace with hash -589935767, now seen corresponding path program 1 times [2024-11-27 20:27:24,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:27:24,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965747772] [2024-11-27 20:27:24,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:24,818 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 [2024-11-27 20:27:24,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:27:24,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:27:24,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:27:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:24,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:27:25,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:28,409 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 20:27:28,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:27:40,598 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:27:40,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965747772] [2024-11-27 20:27:40,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965747772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:27:40,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:27:40,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-27 20:27:40,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076959549] [2024-11-27 20:27:40,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:40,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:27:40,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:27:40,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:27:40,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:27:40,602 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 20:28:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:00,392 INFO L93 Difference]: Finished difference Result 235 states and 305 transitions. [2024-11-27 20:28:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 20:28:00,394 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 74 [2024-11-27 20:28:00,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:00,398 INFO L225 Difference]: With dead ends: 235 [2024-11-27 20:28:00,398 INFO L226 Difference]: Without dead ends: 163 [2024-11-27 20:28:00,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=392, Invalid=1090, Unknown=0, NotChecked=0, Total=1482 [2024-11-27 20:28:00,400 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 129 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:00,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 430 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-27 20:28:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-27 20:28:00,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 52. [2024-11-27 20:28:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:28:00,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-11-27 20:28:00,417 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 74 [2024-11-27 20:28:00,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:00,418 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-27 20:28:00,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 20:28:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2024-11-27 20:28:00,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 20:28:00,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:00,420 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:00,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:28:00,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:28:00,621 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:00,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:00,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1176260037, now seen corresponding path program 1 times [2024-11-27 20:28:00,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:28:00,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113811951] [2024-11-27 20:28:00,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:00,622 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 [2024-11-27 20:28:00,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:28:00,625 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:28:00,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:28:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:00,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:28:00,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:01,978 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 20:28:01,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:28:18,092 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:28:18,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113811951] [2024-11-27 20:28:18,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113811951] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:18,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:28:18,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-27 20:28:18,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944618565] [2024-11-27 20:28:18,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:18,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:28:18,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:28:18,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:28:18,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:28:18,096 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:28:40,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:40,897 INFO L93 Difference]: Finished difference Result 109 states and 138 transitions. [2024-11-27 20:28:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:28:40,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-27 20:28:40,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:40,904 INFO L225 Difference]: With dead ends: 109 [2024-11-27 20:28:40,904 INFO L226 Difference]: Without dead ends: 107 [2024-11-27 20:28:40,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:28:40,905 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 131 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:40,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 205 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2024-11-27 20:28:40,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-27 20:28:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 52. [2024-11-27 20:28:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:28:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-11-27 20:28:40,935 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 75 [2024-11-27 20:28:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:40,935 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-27 20:28:40,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:28:40,936 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2024-11-27 20:28:40,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 20:28:40,938 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:40,938 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:40,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:28:41,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:28:41,139 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:41,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:41,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1178107079, now seen corresponding path program 1 times [2024-11-27 20:28:41,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:28:41,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27603280] [2024-11-27 20:28:41,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:41,140 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 [2024-11-27 20:28:41,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:28:41,144 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:28:41,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:28:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:41,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:28:41,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 20:28:43,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:29:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:29:17,187 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27603280] [2024-11-27 20:29:17,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27603280] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:29:17,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:29:17,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2024-11-27 20:29:17,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473284708] [2024-11-27 20:29:17,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:17,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:29:17,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:17,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:29:17,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:29:17,189 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:29:51,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:51,426 INFO L93 Difference]: Finished difference Result 107 states and 136 transitions. [2024-11-27 20:29:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:29:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-27 20:29:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:51,433 INFO L225 Difference]: With dead ends: 107 [2024-11-27 20:29:51,433 INFO L226 Difference]: Without dead ends: 105 [2024-11-27 20:29:51,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:29:51,434 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 119 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:51,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 292 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2024-11-27 20:29:51,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-27 20:29:51,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 52. [2024-11-27 20:29:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:29:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-11-27 20:29:51,450 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 75 [2024-11-27 20:29:51,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:51,451 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-27 20:29:51,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:29:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2024-11-27 20:29:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 20:29:51,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:51,452 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:51,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:29:51,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:29:51,653 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:51,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1343699897, now seen corresponding path program 1 times [2024-11-27 20:29:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:51,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851109237] [2024-11-27 20:29:51,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:51,654 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 [2024-11-27 20:29:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:51,657 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:29:51,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:29:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:51,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:29:51,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 20:30:00,540 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:30:14,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:14,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851109237] [2024-11-27 20:30:14,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851109237] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:14,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:30:14,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2024-11-27 20:30:14,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813955585] [2024-11-27 20:30:14,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:14,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:30:14,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:14,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:30:14,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:30:14,024 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:31:00,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:00,651 INFO L93 Difference]: Finished difference Result 102 states and 131 transitions. [2024-11-27 20:31:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:31:00,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-27 20:31:00,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:00,657 INFO L225 Difference]: With dead ends: 102 [2024-11-27 20:31:00,657 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:31:00,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:31:00,659 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 125 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:00,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 191 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 33.0s Time] [2024-11-27 20:31:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:31:00,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:31:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:31:00,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2024-11-27 20:31:00,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:00,661 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:31:00,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 20:31:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:31:00,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:31:00,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:31:00,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-27 20:31:00,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:31:00,869 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-27 20:31:00,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:31:13,204 WARN L286 SmtUtils]: Spent 10.12s on a formula simplification. DAG size of input: 188 DAG size of output: 214 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-27 20:31:32,507 WARN L286 SmtUtils]: Spent 14.05s on a formula simplification. DAG size of input: 188 DAG size of output: 8 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:31:44,512 WARN L286 SmtUtils]: Spent 12.00s on a formula simplification. DAG size of input: 90 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:31:55,676 WARN L286 SmtUtils]: Spent 11.16s on a formula simplification. DAG size of input: 90 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:32:15,965 WARN L286 SmtUtils]: Spent 20.29s on a formula simplification. DAG size of input: 214 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:32:30,891 WARN L286 SmtUtils]: Spent 14.92s on a formula simplification. DAG size of input: 90 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:32:43,256 WARN L286 SmtUtils]: Spent 12.28s on a formula simplification. DAG size of input: 90 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:32:56,311 WARN L286 SmtUtils]: Spent 13.05s on a formula simplification. DAG size of input: 90 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:33:09,175 WARN L286 SmtUtils]: Spent 12.86s on a formula simplification. DAG size of input: 90 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:33:25,682 WARN L286 SmtUtils]: Spent 16.49s on a formula simplification. DAG size of input: 190 DAG size of output: 3 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:33:38,418 WARN L286 SmtUtils]: Spent 12.73s on a formula simplification. DAG size of input: 90 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:33:50,592 WARN L286 SmtUtils]: Spent 12.17s on a formula simplification. DAG size of input: 90 DAG size of output: 47 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-27 20:33:50,596 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:33:50,608 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,609 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-27 20:33:50,609 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,609 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,609 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-27 20:33:50,609 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,609 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,609 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,610 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,610 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,610 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-27 20:33:50,610 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-27 20:33:50,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:33:50 BoogieIcfgContainer [2024-11-27 20:33:50,611 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:33:50,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:33:50,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:33:50,612 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:33:50,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:26:32" (3/4) ... [2024-11-27 20:33:50,615 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:33:50,620 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 20:33:50,628 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-27 20:33:50,628 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 20:33:50,628 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:33:50,628 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:33:50,730 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:33:50,730 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:33:50,730 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:33:50,732 INFO L158 Benchmark]: Toolchain (without parser) took 439759.24ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 92.6MB in the beginning and 820.5MB in the end (delta: -727.9MB). Peak memory consumption was 352.5MB. Max. memory is 16.1GB. [2024-11-27 20:33:50,732 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:33:50,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.86ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.6MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:33:50,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.75ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:33:50,734 INFO L158 Benchmark]: Boogie Preprocessor took 69.15ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:33:50,735 INFO L158 Benchmark]: RCFGBuilder took 561.29ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 60.8MB in the end (delta: 15.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:33:50,735 INFO L158 Benchmark]: TraceAbstraction took 438599.45ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 60.3MB in the beginning and 828.7MB in the end (delta: -768.4MB). Peak memory consumption was 689.2MB. Max. memory is 16.1GB. [2024-11-27 20:33:50,735 INFO L158 Benchmark]: Witness Printer took 119.07ms. Allocated memory is still 1.2GB. Free memory was 828.7MB in the beginning and 820.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:33:50,737 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 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.86ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.6MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.75ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.15ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 561.29ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 60.8MB in the end (delta: 15.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 438599.45ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 60.3MB in the beginning and 828.7MB in the end (delta: -768.4MB). Peak memory consumption was 689.2MB. Max. memory is 16.1GB. * Witness Printer took 119.07ms. Allocated memory is still 1.2GB. Free memory was 828.7MB in the beginning and 820.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 268.8s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 138.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 642 SdHoareTripleChecker+Valid, 75.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 618 mSDsluCounter, 1431 SdHoareTripleChecker+Invalid, 73.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1110 mSDsCounter, 439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1247 IncrementalHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 439 mSolverCounterUnsat, 321 mSDtfsCounter, 1247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 788 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 104.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=1, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 226 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 128.6s InterpolantComputationTime, 373 NumberOfCodeBlocks, 373 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 736 ConstructedInterpolants, 3 QuantifiedInterpolants, 7371 SizeOfPredicates, 54 NumberOfNonLiveVariables, 631 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 2164/2200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 20:33:50,951 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-27 20:33:50,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b1aec2-90e4-4c70-bb8e-a017972cae2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE