./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.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_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1 --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 ce316eeb4b3641499c2394eeff325d13cd059837344f9d1e23ab187d3034f448 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:25:26,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:25:26,417 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:25:26,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:25:26,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:25:26,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:25:26,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:25:26,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:25:26,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:25:26,443 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:25:26,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:25:26,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:25:26,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:25:26,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:25:26,444 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:25:26,445 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:26,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:25:26,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:26,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:25:26,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:25:26,447 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_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1 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 -> ce316eeb4b3641499c2394eeff325d13cd059837344f9d1e23ab187d3034f448 [2024-12-02 14:25:26,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:25:26,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:25:26,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:25:26,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:25:26,695 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:25:26,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-12-02 14:25:29,361 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data/ce5e7e1b9/2b1e96ed858341079860c4ed669c9011/FLAG34d6cc769 [2024-12-02 14:25:29,603 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:25:29,604 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-12-02 14:25:29,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data/ce5e7e1b9/2b1e96ed858341079860c4ed669c9011/FLAG34d6cc769 [2024-12-02 14:25:29,948 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data/ce5e7e1b9/2b1e96ed858341079860c4ed669c9011 [2024-12-02 14:25:29,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:25:29,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:25:29,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:25:29,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:25:29,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:25:29,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:25:29" (1/1) ... [2024-12-02 14:25:29,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51dae7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:29, skipping insertion in model container [2024-12-02 14:25:29,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:25:29" (1/1) ... [2024-12-02 14:25:29,975 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:25:30,106 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_b9d78df5-1488-452b-acfa-3b8ea8a58346/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i[915,928] [2024-12-02 14:25:30,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:25:30,168 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:25:30,176 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_b9d78df5-1488-452b-acfa-3b8ea8a58346/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i[915,928] [2024-12-02 14:25:30,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:25:30,202 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:25:30,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30 WrapperNode [2024-12-02 14:25:30,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:25:30,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:25:30,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:25:30,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:25:30,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,231 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2024-12-02 14:25:30,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:25:30,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:25:30,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:25:30,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:25:30,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,253 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]. [2024-12-02 14:25:30,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,257 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:25:30,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:25:30,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:25:30,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:25:30,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (1/1) ... [2024-12-02 14:25:30,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:30,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:25:30,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:25:30,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:25:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:25:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:25:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:25:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:25:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:25:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:25:30,385 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:25:30,387 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:25:30,603 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-02 14:25:30,603 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:25:30,612 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:25:30,612 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 14:25:30,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:25:30 BoogieIcfgContainer [2024-12-02 14:25:30,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:25:30,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:25:30,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:25:30,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:25:30,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:25:29" (1/3) ... [2024-12-02 14:25:30,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc27d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:25:30, skipping insertion in model container [2024-12-02 14:25:30,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:30" (2/3) ... [2024-12-02 14:25:30,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc27d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:25:30, skipping insertion in model container [2024-12-02 14:25:30,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:25:30" (3/3) ... [2024-12-02 14:25:30,620 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-12-02 14:25:30,632 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:25:30,634 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-19.i that has 2 procedures, 60 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:25:30,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:25:30,691 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;@1f5ebf48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:25:30,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:25:30,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 40 states have (on average 1.325) internal successors, (53), 41 states have internal predecessors, (53), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 14:25:30,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 14:25:30,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:30,705 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:30,705 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:30,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:30,710 INFO L85 PathProgramCache]: Analyzing trace with hash -935815586, now seen corresponding path program 1 times [2024-12-02 14:25:30,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:30,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671995624] [2024-12-02 14:25:30,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:30,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 14:25:30,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:25:30,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671995624] [2024-12-02 14:25:30,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671995624] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:25:30,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220522300] [2024-12-02 14:25:30,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:30,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:25:30,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:25:30,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:25:30,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:25:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:31,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:25:31,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:25:31,094 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 14:25:31,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:25:31,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220522300] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:25:31,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:25:31,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:25:31,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046112283] [2024-12-02 14:25:31,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:25:31,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:25:31,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:25:31,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:25:31,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:25:31,118 INFO L87 Difference]: Start difference. First operand has 60 states, 40 states have (on average 1.325) internal successors, (53), 41 states have internal predecessors, (53), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 14:25:31,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:31,135 INFO L93 Difference]: Finished difference Result 117 states and 188 transitions. [2024-12-02 14:25:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:25:31,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 114 [2024-12-02 14:25:31,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:31,142 INFO L225 Difference]: With dead ends: 117 [2024-12-02 14:25:31,142 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 14:25:31,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:25:31,148 INFO L435 NwaCegarLoop]: 84 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, 84 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 [2024-12-02 14:25:31,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:25:31,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 14:25:31,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 14:25:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 14:25:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 80 transitions. [2024-12-02 14:25:31,181 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 80 transitions. Word has length 114 [2024-12-02 14:25:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:25:31,182 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 80 transitions. [2024-12-02 14:25:31,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 14:25:31,182 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 80 transitions. [2024-12-02 14:25:31,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 14:25:31,184 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:31,185 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:31,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:25:31,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:25:31,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:31,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash -322336988, now seen corresponding path program 1 times [2024-12-02 14:25:31,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:31,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771568671] [2024-12-02 14:25:31,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:31,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:25:31,507 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:25:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:25:31,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 14:25:31,639 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 14:25:31,641 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:25:31,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:25:31,646 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 14:25:31,702 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:25:31,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:25:31 BoogieIcfgContainer [2024-12-02 14:25:31,705 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:25:31,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:25:31,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:25:31,706 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:25:31,706 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:25:30" (3/4) ... [2024-12-02 14:25:31,708 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 14:25:31,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:25:31,710 INFO L158 Benchmark]: Toolchain (without parser) took 1758.00ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 70.4MB in the end (delta: 47.0MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2024-12-02 14:25:31,710 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 82.1MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:25:31,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.75ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 104.4MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:25:31,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.25ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:25:31,711 INFO L158 Benchmark]: Boogie Preprocessor took 34.36ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 100.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:25:31,711 INFO L158 Benchmark]: RCFGBuilder took 346.30ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 83.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:25:31,711 INFO L158 Benchmark]: TraceAbstraction took 1089.66ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 70.4MB in the end (delta: 12.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-12-02 14:25:31,712 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 70.4MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:25:31,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 82.1MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.75ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 104.4MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.25ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.36ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 100.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 346.30ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 83.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1089.66ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 70.4MB in the end (delta: 12.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 70.4MB in the end (delta: 15.8kB). 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 91, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 87, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 8; [L23] unsigned char var_1_2 = 128; [L24] unsigned char var_1_3 = 64; [L25] unsigned long int var_1_4 = 1; [L26] unsigned long int var_1_5 = 5; [L27] signed char var_1_7 = 4; [L28] signed char var_1_8 = 100; [L29] unsigned char var_1_9 = 1; [L30] signed long int var_1_10 = -8; [L31] float var_1_11 = 255.2; [L32] float var_1_12 = 128.25; [L33] float var_1_13 = 100.5; [L34] float var_1_14 = 255.9; [L35] signed long int var_1_15 = -128; [L36] unsigned short int var_1_16 = 2; [L37] signed long int last_1_var_1_10 = -8; VAL [isInitial=0, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=128, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L101] isInitial = 1 [L102] FCALL initially() [L103] int k_loop; [L104] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=128, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L104] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=128, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L105] CALL updateLastVariables() [L94] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=128, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L105] RET updateLastVariables() [L106] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_2 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L66] RET assume_abort_if_not(var_1_2 >= 127) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L67] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L67] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L68] var_1_3 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L70] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L71] var_1_4 = __VERIFIER_nondet_ulong() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_4 <= 12) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L73] RET assume_abort_if_not(var_1_4 <= 12) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L74] var_1_5 = __VERIFIER_nondet_ulong() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_7=4, var_1_8=100, var_1_9=1] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_7=4, var_1_8=100, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_5 <= 11) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=4, var_1_8=100, var_1_9=1] [L76] RET assume_abort_if_not(var_1_5 <= 11) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=4, var_1_8=100, var_1_9=1] [L77] var_1_7 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_7 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=100, var_1_9=1] [L78] RET assume_abort_if_not(var_1_7 >= -63) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=100, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_7 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=100, var_1_9=1] [L79] RET assume_abort_if_not(var_1_7 <= 63) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=100, var_1_9=1] [L80] var_1_8 = __VERIFIER_nondet_char() [L81] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L81] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L82] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L82] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L83] var_1_9 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0] [L84] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0] [L85] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L85] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L86] var_1_12 = __VERIFIER_nondet_float() [L87] CALL assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L87] RET assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L88] var_1_13 = __VERIFIER_nondet_float() [L89] CALL assume_abort_if_not((var_1_13 >= -230584.3009213691390e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 2305843.009213691390e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L89] RET assume_abort_if_not((var_1_13 >= -230584.3009213691390e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 2305843.009213691390e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L90] var_1_14 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_14 >= -230584.3009213691390e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 2305843.009213691390e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L91] RET assume_abort_if_not((var_1_14 >= -230584.3009213691390e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 2305843.009213691390e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L106] RET updateVariables() [L107] CALL step() [L41] COND FALSE !(var_1_7 < var_1_3) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L46] COND TRUE \read(var_1_9) [L47] var_1_10 = var_1_5 VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=0, var_1_11=1276/5, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L50] var_1_11 = (var_1_12 + (var_1_13 + var_1_14)) [L51] var_1_16 = 64 VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=0, var_1_15=-128, var_1_16=64, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L52] COND TRUE \read(var_1_9) [L53] var_1_15 = (var_1_7 + var_1_16) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=0, var_1_15=127, var_1_16=64, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L55] signed long int stepLocal_0 = var_1_15; VAL [isInitial=1, last_1_var_1_10=-8, stepLocal_0=127, var_1_10=0, var_1_15=127, var_1_16=64, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L56] EXPR (var_1_2 - var_1_3) << (var_1_4 + var_1_5) VAL [isInitial=1, last_1_var_1_10=-8, stepLocal_0=127, var_1_10=0, var_1_15=127, var_1_16=64, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L56] COND TRUE ((var_1_2 - var_1_3) << (var_1_4 + var_1_5)) <= stepLocal_0 [L57] var_1_1 = ((((var_1_4) > (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (var_1_4) : (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8)))))) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=0, var_1_15=127, var_1_16=64, var_1_1=0, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L107] RET step() [L108] CALL, EXPR property() [L97] EXPR (var_1_2 - var_1_3) << (var_1_4 + var_1_5) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=0, var_1_15=127, var_1_16=64, var_1_1=0, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L97-L98] return (((((((var_1_2 - var_1_3) << (var_1_4 + var_1_5)) <= var_1_15) ? (var_1_1 == ((signed char) ((((var_1_4) > (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (var_1_4) : (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8)))))))) : (var_1_9 ? (var_1_1 == ((signed char) var_1_5)) : 1)) && ((var_1_7 < var_1_3) ? ((last_1_var_1_10 > var_1_7) ? (var_1_10 == ((signed long int) (var_1_3 - var_1_8))) : 1) : (var_1_9 ? (var_1_10 == ((signed long int) var_1_5)) : 1))) && (var_1_11 == ((float) (var_1_12 + (var_1_13 + var_1_14))))) && (var_1_9 ? (var_1_15 == ((signed long int) (var_1_7 + var_1_16))) : 1)) && (var_1_16 == ((unsigned short int) 64)) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=0, var_1_15=127, var_1_16=64, var_1_1=0, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=0, var_1_15=127, var_1_16=64, var_1_1=0, var_1_2=127, var_1_3=63, var_1_4=0, var_1_5=0, var_1_7=63, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 84 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 342 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 262 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1056/1088 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 [2024-12-02 14:25:31,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1 --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 ce316eeb4b3641499c2394eeff325d13cd059837344f9d1e23ab187d3034f448 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:25:33,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:25:33,705 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 14:25:33,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:25:33,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:25:33,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:25:33,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:25:33,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:25:33,734 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:25:33,734 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:25:33,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:25:33,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:25:33,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:25:33,735 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:25:33,735 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:25:33,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:25:33,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:25:33,735 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:25:33,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:25:33,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:25:33,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:25:33,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:25:33,736 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:25:33,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:33,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:33,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 14:25:33,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:25:33,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:25:33,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:25:33,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:25:33,738 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_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1 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 -> ce316eeb4b3641499c2394eeff325d13cd059837344f9d1e23ab187d3034f448 [2024-12-02 14:25:33,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:25:33,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:25:33,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:25:33,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:25:33,987 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:25:33,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-12-02 14:25:36,675 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data/2153443cc/d2dde6e194bf47989b021d7bb976667d/FLAGb0c86cc1f [2024-12-02 14:25:36,857 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:25:36,858 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-12-02 14:25:36,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data/2153443cc/d2dde6e194bf47989b021d7bb976667d/FLAGb0c86cc1f [2024-12-02 14:25:36,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/data/2153443cc/d2dde6e194bf47989b021d7bb976667d [2024-12-02 14:25:36,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:25:36,883 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:25:36,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:25:36,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:25:36,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:25:36,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:25:36" (1/1) ... [2024-12-02 14:25:36,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8a921d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:36, skipping insertion in model container [2024-12-02 14:25:36,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:25:36" (1/1) ... [2024-12-02 14:25:36,904 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:25:37,016 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_b9d78df5-1488-452b-acfa-3b8ea8a58346/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i[915,928] [2024-12-02 14:25:37,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:25:37,066 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:25:37,075 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_b9d78df5-1488-452b-acfa-3b8ea8a58346/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i[915,928] [2024-12-02 14:25:37,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:25:37,108 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:25:37,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37 WrapperNode [2024-12-02 14:25:37,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:25:37,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:25:37,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:25:37,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:25:37,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,143 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-12-02 14:25:37,144 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:25:37,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:25:37,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:25:37,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:25:37,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,154 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,164 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]. [2024-12-02 14:25:37,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,171 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:25:37,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:25:37,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:25:37,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:25:37,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:37,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:25:37,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:25:37,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:25:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:25:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 14:25:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:25:37,230 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:25:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:25:37,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:25:37,290 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:25:37,292 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:25:38,197 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-02 14:25:38,197 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:25:38,204 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:25:38,204 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 14:25:38,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:25:38 BoogieIcfgContainer [2024-12-02 14:25:38,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:25:38,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:25:38,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:25:38,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:25:38,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:25:36" (1/3) ... [2024-12-02 14:25:38,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f380fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:25:38, skipping insertion in model container [2024-12-02 14:25:38,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37" (2/3) ... [2024-12-02 14:25:38,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f380fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:25:38, skipping insertion in model container [2024-12-02 14:25:38,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:25:38" (3/3) ... [2024-12-02 14:25:38,211 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-12-02 14:25:38,221 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:25:38,222 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-19.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:25:38,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:25:38,263 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;@1621904c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:25:38,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:25:38,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 14:25:38,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 14:25:38,273 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:38,274 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:38,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:38,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:38,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1075161193, now seen corresponding path program 1 times [2024-12-02 14:25:38,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:25:38,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870542552] [2024-12-02 14:25:38,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:38,289 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 [2024-12-02 14:25:38,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:25:38,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:25:38,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:25:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:38,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:25:38,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:25:38,558 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2024-12-02 14:25:38,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:25:38,558 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:25:38,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870542552] [2024-12-02 14:25:38,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870542552] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:25:38,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:25:38,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:25:38,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953360404] [2024-12-02 14:25:38,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:25:38,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:25:38,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:25:38,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:25:38,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:25:38,579 INFO L87 Difference]: Start difference. First operand has 55 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 14:25:38,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:38,599 INFO L93 Difference]: Finished difference Result 107 states and 174 transitions. [2024-12-02 14:25:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:25:38,600 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2024-12-02 14:25:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:38,605 INFO L225 Difference]: With dead ends: 107 [2024-12-02 14:25:38,605 INFO L226 Difference]: Without dead ends: 51 [2024-12-02 14:25:38,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:25:38,610 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:25:38,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:25:38,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-12-02 14:25:38,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-12-02 14:25:38,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 14:25:38,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2024-12-02 14:25:38,641 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 111 [2024-12-02 14:25:38,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:25:38,642 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2024-12-02 14:25:38,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 14:25:38,642 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2024-12-02 14:25:38,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 14:25:38,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:38,644 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:38,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:25:38,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:25:38,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:38,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:38,846 INFO L85 PathProgramCache]: Analyzing trace with hash -451289757, now seen corresponding path program 1 times [2024-12-02 14:25:38,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:25:38,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85778641] [2024-12-02 14:25:38,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:38,847 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 [2024-12-02 14:25:38,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:25:38,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:25:38,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:25:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:39,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 14:25:39,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:25:59,799 WARN L286 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:26:18,925 WARN L286 SmtUtils]: Spent 7.77s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:26:36,517 WARN L286 SmtUtils]: Spent 6.72s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:27:00,742 WARN L286 SmtUtils]: Spent 6.79s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:27:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 414 proven. 93 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 14:27:36,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:31:53,081 WARN L286 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:32:35,689 WARN L286 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:33:18,727 WARN L286 SmtUtils]: Spent 6.51s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:33:56,408 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_3~0)) (.cse0 ((_ sign_extend 24) c_~var_1_7~0))) (or (bvslt .cse0 .cse1) (not (bvsle (bvshl (bvadd (bvneg .cse1) ((_ zero_extend 24) c_~var_1_2~0)) (bvadd c_~var_1_5~0 c_~var_1_4~0)) (bvadd (_ bv64 32) .cse0))) (let ((.cse9 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse10 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (let ((.cse4 (forall ((~var_1_8~0 (_ BitVec 8))) (let ((.cse15 ((_ sign_extend 24) ~var_1_8~0))) (or (not (bvslt .cse15 (_ bv0 32))) (bvugt c_~var_1_4~0 (bvneg .cse15)))))) (.cse6 (forall ((~var_1_8~0 (_ BitVec 8))) (let ((.cse14 ((_ sign_extend 24) ~var_1_8~0))) (or (bvugt c_~var_1_4~0 .cse14) (bvslt .cse14 (_ bv0 32)))))) (.cse3 (forall ((~var_1_14~0 (_ FloatingPoint 8 24))) (or (let ((.cse13 (fp.add c_currentRoundingMode c_~var_1_12~0 (fp.add c_currentRoundingMode c_~var_1_13~0 ~var_1_14~0)))) (fp.eq .cse13 .cse13)) (not (fp.leq ~var_1_14~0 (fp.neg .cse9))) (not (fp.geq ~var_1_14~0 (fp.neg .cse10)))))) (.cse7 (forall ((~var_1_8~0 (_ BitVec 8))) (let ((.cse12 ((_ sign_extend 24) ~var_1_8~0))) (or (not (bvslt .cse12 (_ bv0 32))) (not (bvugt c_~var_1_4~0 (bvneg .cse12))))))) (.cse2 (forall ((~var_1_8~0 (_ BitVec 8))) (let ((.cse11 ((_ sign_extend 24) ~var_1_8~0))) (or (not (bvugt c_~var_1_4~0 .cse11)) (bvslt .cse11 (_ bv0 32)))))) (.cse5 (forall ((~var_1_14~0 (_ FloatingPoint 8 24))) (or (let ((.cse8 (fp.add c_currentRoundingMode c_~var_1_12~0 (fp.add c_currentRoundingMode c_~var_1_13~0 ~var_1_14~0)))) (fp.eq .cse8 .cse8)) (not (fp.geq ~var_1_14~0 .cse9)) (not (fp.leq ~var_1_14~0 .cse10)))))) (and (or .cse2 .cse3) (or .cse4 .cse5) (or .cse4 .cse3) (or .cse6 .cse3) (or .cse6 .cse5) (or .cse7 .cse3) (or .cse5 .cse7) (or .cse2 .cse5)))))) is different from true [2024-12-02 14:33:56,409 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:33:56,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85778641] [2024-12-02 14:33:56,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85778641] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:33:56,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [519777657] [2024-12-02 14:33:56,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:56,409 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 14:33:56,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 14:33:56,411 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 14:33:56,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d78df5-1488-452b-acfa-3b8ea8a58346/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-02 14:33:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:57,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 14:33:57,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:35:59,380 WARN L286 SmtUtils]: Spent 8.54s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:36:28,008 WARN L286 SmtUtils]: Spent 7.60s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:36:56,399 WARN L286 SmtUtils]: Spent 9.19s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:37:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 411 proven. 75 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 14:37:05,808 INFO L312 TraceCheckSpWp]: Computing backward predicates...