./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.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_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdf93f59dd274ab086c68aef6e20ded5f344701c9de4a190c50002498c40f88d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:24:47,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:24:47,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:24:47,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:24:47,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:24:47,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:24:47,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:24:47,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:24:47,268 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:24:47,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:24:47,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:24:47,269 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:24:47,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:24:47,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:24:47,271 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:24:47,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:24:47,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:24:47,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:24:47,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:24:47,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:24:47,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:24:47,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:24:47,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:24:47,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:24:47,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:24:47,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:24:47,273 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:24:47,273 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:24:47,273 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:24:47,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:24:47,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:24:47,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:24:47,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:47,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:24:47,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:24:47,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:24:47,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:24:47,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:47,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:24:47,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:24:47,275 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:24:47,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:24:47,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:24:47,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:24:47,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:24:47,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:24:47,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:24:47,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:24:47,277 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_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf93f59dd274ab086c68aef6e20ded5f344701c9de4a190c50002498c40f88d [2024-11-28 04:24:47,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:24:47,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:24:47,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:24:47,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:24:47,665 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:24:47,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i [2024-11-28 04:24:51,276 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data/3ec54d743/534a573f9da54d2a9f6cc743e336f1c7/FLAG69c349a46 [2024-11-28 04:24:51,716 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:24:51,718 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i [2024-11-28 04:24:51,733 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data/3ec54d743/534a573f9da54d2a9f6cc743e336f1c7/FLAG69c349a46 [2024-11-28 04:24:51,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data/3ec54d743/534a573f9da54d2a9f6cc743e336f1c7 [2024-11-28 04:24:51,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:24:51,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:24:51,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:24:51,769 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:24:51,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:24:51,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:24:51" (1/1) ... [2024-11-28 04:24:51,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8a5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:51, skipping insertion in model container [2024-11-28 04:24:51,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:24:51" (1/1) ... [2024-11-28 04:24:51,804 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:24:52,015 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_ee19d145-7818-40ed-b473-a4536e1fb926/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i[916,929] [2024-11-28 04:24:52,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:24:52,138 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:24:52,155 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_ee19d145-7818-40ed-b473-a4536e1fb926/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i[916,929] [2024-11-28 04:24:52,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:24:52,226 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:24:52,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52 WrapperNode [2024-11-28 04:24:52,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:24:52,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:24:52,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:24:52,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:24:52,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,301 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2024-11-28 04:24:52,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:24:52,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:24:52,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:24:52,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:24:52,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,330 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:24:52,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,338 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:24:52,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:24:52,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:24:52,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:24:52,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (1/1) ... [2024-11-28 04:24:52,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:52,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:52,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:24:52,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:24:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:24:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:24:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:24:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:24:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:24:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:24:52,551 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:24:52,554 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:24:52,954 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-28 04:24:52,954 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:24:52,966 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:24:52,967 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:24:52,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:24:52 BoogieIcfgContainer [2024-11-28 04:24:52,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:24:52,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:24:52,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:24:52,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:24:52,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:24:51" (1/3) ... [2024-11-28 04:24:52,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a8f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:24:52, skipping insertion in model container [2024-11-28 04:24:52,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:24:52" (2/3) ... [2024-11-28 04:24:52,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a8f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:24:52, skipping insertion in model container [2024-11-28 04:24:52,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:24:52" (3/3) ... [2024-11-28 04:24:52,979 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-0.i [2024-11-28 04:24:52,998 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:24:53,000 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-0.i that has 2 procedures, 62 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:24:53,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:24:53,100 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;@f12c5ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:24:53,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:24:53,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:24:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:24:53,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:53,121 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:53,121 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:24:53,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:53,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1324830548, now seen corresponding path program 1 times [2024-11-28 04:24:53,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:53,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145739657] [2024-11-28 04:24:53,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:53,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-28 04:24:53,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:53,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145739657] [2024-11-28 04:24:53,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145739657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:24:53,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799676462] [2024-11-28 04:24:53,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:53,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:53,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:53,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:53,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:24:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:53,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:24:53,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-28 04:24:53,907 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:53,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799676462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:53,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:24:53,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:24:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985987820] [2024-11-28 04:24:53,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:53,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:24:53,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:53,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:24:53,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:24:53,944 INFO L87 Difference]: Start difference. First operand has 62 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:24:53,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:53,987 INFO L93 Difference]: Finished difference Result 117 states and 194 transitions. [2024-11-28 04:24:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:24:53,991 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2024-11-28 04:24:53,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:54,001 INFO L225 Difference]: With dead ends: 117 [2024-11-28 04:24:54,001 INFO L226 Difference]: Without dead ends: 58 [2024-11-28 04:24:54,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:24:54,010 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 [2024-11-28 04:24:54,015 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] [2024-11-28 04:24:54,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-28 04:24:54,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-28 04:24:54,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:24:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2024-11-28 04:24:54,066 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 122 [2024-11-28 04:24:54,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:54,067 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2024-11-28 04:24:54,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:24:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2024-11-28 04:24:54,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:24:54,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:54,072 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:54,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:24:54,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:54,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:24:54,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:54,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1886955048, now seen corresponding path program 1 times [2024-11-28 04:24:54,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:54,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481142866] [2024-11-28 04:24:54,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:54,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:24:54,562 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:24:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:24:54,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:24:54,797 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:24:54,799 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:24:54,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:24:54,807 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:24:54,935 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:24:54,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:24:54 BoogieIcfgContainer [2024-11-28 04:24:54,939 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:24:54,940 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:24:54,940 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:24:54,940 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:24:54,941 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:24:52" (3/4) ... [2024-11-28 04:24:54,944 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:24:54,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:24:54,946 INFO L158 Benchmark]: Toolchain (without parser) took 3178.74ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 58.2MB in the end (delta: 47.5MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-11-28 04:24:54,946 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:24:54,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.39ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 91.9MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:24:54,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.77ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 89.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:24:54,947 INFO L158 Benchmark]: Boogie Preprocessor took 48.58ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 85.7MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:24:54,948 INFO L158 Benchmark]: RCFGBuilder took 616.11ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 67.2MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:24:54,948 INFO L158 Benchmark]: TraceAbstraction took 1968.92ms. Allocated memory is still 142.6MB. Free memory was 66.4MB in the beginning and 58.3MB in the end (delta: 8.2MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-28 04:24:54,948 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 142.6MB. Free memory was 58.3MB in the beginning and 58.2MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:24:54,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.39ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 91.9MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.77ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 89.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.58ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 85.7MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 616.11ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 67.2MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1968.92ms. Allocated memory is still 142.6MB. Free memory was 66.4MB in the beginning and 58.3MB in the end (delta: 8.2MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 142.6MB. Free memory was 58.3MB in the beginning and 58.2MB in the end (delta: 36.9kB). 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 119, overapproximation of someBinaryFLOATComparisonOperation at line 109, overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryDOUBLEComparisonOperation at line 70, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someBinaryDOUBLEComparisonOperation at line 107, overapproximation of someBinaryDOUBLEComparisonOperation at line 119, overapproximation of someBinaryDOUBLEComparisonOperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 105. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 32; [L25] signed long int var_1_4 = -32; [L26] signed long int var_1_5 = 2; [L27] signed short int var_1_6 = -10; [L28] unsigned long int var_1_7 = 1; [L29] unsigned char var_1_8 = 0; [L30] unsigned long int var_1_9 = 3470417420; [L31] unsigned char var_1_10 = 0; [L32] double var_1_11 = 32.875; [L33] double var_1_12 = 25.6; [L34] double var_1_13 = 1.75; [L35] float var_1_14 = 5.4; [L36] float var_1_15 = 127.5; [L37] float var_1_16 = 3.5; [L38] signed long int var_1_17 = 64; [L39] unsigned char var_1_18 = 64; VAL [isInitial=0, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_2=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L123] isInitial = 1 [L124] FCALL initially() [L126] FCALL updateLastVariables() [L127] CALL updateVariables() [L86] var_1_2 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L87] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L88] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L88] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L89] var_1_3 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L90] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L91] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L91] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L92] var_1_4 = __VERIFIER_nondet_long() [L93] CALL assume_abort_if_not(var_1_4 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L93] RET assume_abort_if_not(var_1_4 >= -1073741823) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L94] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L94] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L95] var_1_9 = __VERIFIER_nondet_ulong() [L96] CALL assume_abort_if_not(var_1_9 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L96] RET assume_abort_if_not(var_1_9 >= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L97] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L97] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L98] var_1_10 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L99] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L100] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L100] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L101] var_1_11 = __VERIFIER_nondet_double() [L102] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L102] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L103] var_1_12 = __VERIFIER_nondet_double() [L104] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L104] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L105] CALL assume_abort_if_not(var_1_12 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L105] RET assume_abort_if_not(var_1_12 != 0.0F) VAL [isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L106] var_1_13 = __VERIFIER_nondet_double() [L107] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L107] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L108] var_1_15 = __VERIFIER_nondet_float() [L109] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L109] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L110] var_1_16 = __VERIFIER_nondet_float() [L111] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L111] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L112] var_1_18 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L113] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L114] CALL assume_abort_if_not(var_1_18 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L114] RET assume_abort_if_not(var_1_18 <= 255) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L127] RET updateVariables() [L128] CALL step() [L43] COND TRUE var_1_2 > (- var_1_3) [L44] var_1_1 = ((((var_1_3) > ((var_1_2 + var_1_4))) ? (var_1_3) : ((var_1_2 + var_1_4)))) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L48] unsigned char stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_0=-213, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L49] COND TRUE var_1_3 < stepLocal_0 [L50] var_1_5 = ((var_1_2 - var_1_3) + var_1_4) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L52] unsigned char stepLocal_1 = var_1_2; VAL [isInitial=1, stepLocal_1=-213, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L53] COND FALSE !(stepLocal_1 < (- var_1_5)) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L56] signed short int stepLocal_3 = var_1_6; [L57] signed long int stepLocal_2 = var_1_1; VAL [isInitial=1, stepLocal_2=33, stepLocal_3=-10, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L58] COND FALSE !(stepLocal_2 > var_1_3) VAL [isInitial=1, stepLocal_3=-10, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L63] unsigned long int stepLocal_4 = var_1_9 - var_1_2; VAL [isInitial=1, stepLocal_3=-10, stepLocal_4=2147483604, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L64] COND TRUE (- 8u) >= stepLocal_4 [L65] var_1_8 = (! var_1_10) VAL [isInitial=1, stepLocal_3=-10, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L69] unsigned long int stepLocal_5 = var_1_9; VAL [isInitial=1, stepLocal_3=-10, stepLocal_5=2147483647, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L70] COND FALSE !((var_1_12 * var_1_11) > var_1_13) [L77] var_1_14 = var_1_16 VAL [isInitial=1, stepLocal_3=-10, stepLocal_5=2147483647, var_1_10=1, var_1_14=3470417425, var_1_16=3470417425, var_1_17=64, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L79] COND TRUE ((var_1_11 + var_1_14) / 9.2) < ((((var_1_13) < (var_1_16)) ? (var_1_13) : (var_1_16))) [L80] var_1_17 = ((((var_1_2) > (var_1_18)) ? (var_1_2) : (var_1_18))) VAL [isInitial=1, stepLocal_3=-10, stepLocal_5=2147483647, var_1_10=1, var_1_14=3470417425, var_1_16=3470417425, var_1_17=43, var_1_18=4, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L128] RET step() [L129] CALL, EXPR property() [L119-L120] return (((((((var_1_2 > (- var_1_3)) ? (var_1_1 == ((signed long int) ((((var_1_3) > ((var_1_2 + var_1_4))) ? (var_1_3) : ((var_1_2 + var_1_4)))))) : (var_1_1 == ((signed long int) (((((1 - var_1_2)) < (16)) ? ((1 - var_1_2)) : (16)))))) && ((var_1_3 < var_1_2) ? (var_1_5 == ((signed long int) ((var_1_2 - var_1_3) + var_1_4))) : 1)) && ((var_1_2 < (- var_1_5)) ? (var_1_6 == ((signed short int) (32 - var_1_3))) : 1)) && ((var_1_1 > var_1_3) ? ((var_1_4 <= var_1_6) ? (var_1_7 == ((unsigned long int) ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) : 1) : 1)) && (((- 8u) >= (var_1_9 - var_1_2)) ? (var_1_8 == ((unsigned char) (! var_1_10))) : (var_1_8 == ((unsigned char) (((var_1_11 / var_1_12) >= var_1_13) || var_1_10))))) && (((var_1_12 * var_1_11) > var_1_13) ? ((var_1_9 < var_1_5) ? (var_1_14 == ((float) var_1_15)) : (var_1_14 == ((float) var_1_15))) : (var_1_14 == ((float) var_1_16)))) && ((((var_1_11 + var_1_14) / 9.2) < ((((var_1_13) < (var_1_16)) ? (var_1_13) : (var_1_16)))) ? (var_1_17 == ((signed long int) ((((var_1_2) > (var_1_18)) ? (var_1_2) : (var_1_18))))) : (var_1_17 == ((signed long int) var_1_4))) ; VAL [\result=0, isInitial=1, var_1_10=1, var_1_14=3470417425, var_1_16=3470417425, var_1_17=43, var_1_18=4, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L129] RET, EXPR property() [L129] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=1, var_1_14=3470417425, var_1_16=3470417425, var_1_17=43, var_1_18=4, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] [L19] reach_error() VAL [isInitial=1, var_1_10=1, var_1_14=3470417425, var_1_16=3470417425, var_1_17=43, var_1_18=4, var_1_1=33, var_1_2=-213, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, 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, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 242 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1190/1224 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 04:24:54,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdf93f59dd274ab086c68aef6e20ded5f344701c9de4a190c50002498c40f88d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:24:58,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:24:58,259 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:24:58,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:24:58,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:24:58,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:24:58,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:24:58,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:24:58,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:24:58,324 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:24:58,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:24:58,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:24:58,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:24:58,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:24:58,326 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:24:58,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:24:58,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:24:58,326 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:24:58,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:24:58,327 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:24:58,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:24:58,328 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:24:58,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:24:58,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:24:58,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:24:58,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:58,330 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:24:58,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:24:58,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:24:58,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:24:58,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:58,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:24:58,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:24:58,332 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:24:58,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:24:58,332 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:24:58,333 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:24:58,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:24:58,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:24:58,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:24:58,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:24:58,333 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_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf93f59dd274ab086c68aef6e20ded5f344701c9de4a190c50002498c40f88d [2024-11-28 04:24:58,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:24:58,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:24:58,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:24:58,744 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:24:58,745 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:24:58,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i [2024-11-28 04:25:02,434 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data/b621785a6/70153926a4d54ea1bd7097c04f683572/FLAG1ceb09bf5 [2024-11-28 04:25:02,799 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:25:02,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i [2024-11-28 04:25:02,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data/b621785a6/70153926a4d54ea1bd7097c04f683572/FLAG1ceb09bf5 [2024-11-28 04:25:02,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/data/b621785a6/70153926a4d54ea1bd7097c04f683572 [2024-11-28 04:25:02,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:25:02,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:25:02,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:25:02,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:25:02,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:25:02,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:25:02" (1/1) ... [2024-11-28 04:25:02,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ed2eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:02, skipping insertion in model container [2024-11-28 04:25:02,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:25:02" (1/1) ... [2024-11-28 04:25:02,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:25:03,090 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_ee19d145-7818-40ed-b473-a4536e1fb926/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i[916,929] [2024-11-28 04:25:03,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:25:03,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:25:03,241 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_ee19d145-7818-40ed-b473-a4536e1fb926/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i[916,929] [2024-11-28 04:25:03,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:25:03,313 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:25:03,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03 WrapperNode [2024-11-28 04:25:03,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:25:03,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:25:03,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:25:03,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:25:03,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,391 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129 [2024-11-28 04:25:03,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:25:03,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:25:03,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:25:03,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:25:03,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,413 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,425 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:25:03,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,436 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:25:03,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:25:03,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:25:03,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:25:03,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (1/1) ... [2024-11-28 04:25:03,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:25:03,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:25:03,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:25:03,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:25:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:25:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:25:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:25:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:25:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:25:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:25:03,662 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:25:03,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:25:23,848 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-28 04:25:23,849 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:25:23,862 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:25:23,862 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:25:23,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:25:23 BoogieIcfgContainer [2024-11-28 04:25:23,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:25:23,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:25:23,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:25:23,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:25:23,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:25:02" (1/3) ... [2024-11-28 04:25:23,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f820e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:25:23, skipping insertion in model container [2024-11-28 04:25:23,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:25:03" (2/3) ... [2024-11-28 04:25:23,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f820e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:25:23, skipping insertion in model container [2024-11-28 04:25:23,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:25:23" (3/3) ... [2024-11-28 04:25:23,876 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-0.i [2024-11-28 04:25:23,895 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:25:23,897 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-0.i that has 2 procedures, 62 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:25:23,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:25:23,986 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;@68bf91d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:25:23,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:25:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:25:24,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:25:24,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:24,011 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:24,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:25:24,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:24,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1324830548, now seen corresponding path program 1 times [2024-11-28 04:25:24,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:24,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647092204] [2024-11-28 04:25:24,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:24,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:25:24,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:25:24,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:25:24,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 04:25:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:26,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:25:26,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:25:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-28 04:25:26,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:25:26,511 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:25:26,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647092204] [2024-11-28 04:25:26,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647092204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:25:26,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:25:26,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:25:26,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897859584] [2024-11-28 04:25:26,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:25:26,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:25:26,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:25:26,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:25:26,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:25:26,553 INFO L87 Difference]: Start difference. First operand has 62 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:25:26,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:25:26,587 INFO L93 Difference]: Finished difference Result 117 states and 194 transitions. [2024-11-28 04:25:26,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:25:26,589 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2024-11-28 04:25:26,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:25:26,599 INFO L225 Difference]: With dead ends: 117 [2024-11-28 04:25:26,600 INFO L226 Difference]: Without dead ends: 58 [2024-11-28 04:25:26,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:25:26,611 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 [2024-11-28 04:25:26,615 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] [2024-11-28 04:25:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-28 04:25:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-28 04:25:26,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:25:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2024-11-28 04:25:26,676 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 122 [2024-11-28 04:25:26,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:25:26,676 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2024-11-28 04:25:26,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:25:26,679 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2024-11-28 04:25:26,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:25:26,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:25:26,684 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:25:26,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 04:25:26,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:25:26,885 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:25:26,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:25:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1886955048, now seen corresponding path program 1 times [2024-11-28 04:25:26,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:25:26,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464158201] [2024-11-28 04:25:26,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:25:26,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:25:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:25:26,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:25:26,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee19d145-7818-40ed-b473-a4536e1fb926/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 04:25:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:25:29,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:25:29,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:26:48,041 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:28:49,379 WARN L286 SmtUtils]: Spent 37.08s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:28:57,674 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:29:05,921 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:29:14,166 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:29:22,407 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:29:30,665 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:29:38,924 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:29:47,182 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:29:55,438 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:30:03,697 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:30:11,946 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:30:20,201 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:30:28,479 WARN L286 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:30:36,738 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:30:45,001 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:30:53,259 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:31:01,514 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:31:09,769 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:31:18,046 WARN L286 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:31:26,298 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:31:33,390 WARN L286 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:31:41,651 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:31:49,880 WARN L286 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:31:58,142 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:32:06,406 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:32:14,827 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:32:23,085 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:32:31,348 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:32:39,615 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:32:47,883 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:32:56,152 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:33:00,226 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_3~0)) (.cse0 ((_ zero_extend 24) c_~var_1_2~0))) (and (bvuge (_ bv4294967288 32) (bvadd c_~var_1_9~0 (bvneg .cse0))) (not (bvslt .cse0 (bvneg c_~var_1_5~0))) (= c_~var_1_14~0 c_~var_1_16~0) (not (bvsgt c_~var_1_1~0 .cse1)) (not (fp.gt (fp.mul c_currentRoundingMode c_~var_1_12~0 c_~var_1_11~0) c_~var_1_13~0)) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.geq c_~var_1_16~0 .cse2) (fp.leq c_~var_1_16~0 .cse3)) (and (fp.leq c_~var_1_16~0 (fp.neg .cse2)) (fp.geq c_~var_1_16~0 (fp.neg .cse3))))) (bvsle c_~var_1_4~0 (_ bv1073741823 32)) (let ((.cse5 (bvadd c_~var_1_4~0 .cse0))) (let ((.cse4 (bvsgt .cse1 .cse5))) (or (and .cse4 (= c_~var_1_1~0 .cse1)) (and (not .cse4) (= c_~var_1_1~0 .cse5))))) (= c_~var_1_5~0 (bvadd (bvneg .cse1) c_~var_1_4~0 .cse0)) (= (_ bv0 16) (bvadd (_ bv10 16) c_~var_1_6~0)) (let ((.cse6 (= (_ bv0 8) c_~var_1_10~0))) (or (and (= (_ bv1 8) c_~var_1_8~0) .cse6) (and (not .cse6) (= (_ bv0 8) c_~var_1_8~0)))) (let ((.cse8 ((_ zero_extend 24) c_~var_1_18~0))) (let ((.cse7 (bvsgt .cse0 .cse8))) (or (and (= c_~var_1_17~0 .cse0) .cse7) (and (not .cse7) (= c_~var_1_17~0 .cse8))))) (bvslt .cse1 .cse0) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse10 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_16~0))) (let ((.cse11 (fp.lt c_~var_1_13~0 .cse10)) (.cse9 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_11~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0)) ((_ to_fp 11 53) c_currentRoundingMode (/ 46.0 5.0))))) (or (and (fp.lt .cse9 .cse10) (not .cse11)) (and .cse11 (fp.lt .cse9 c_~var_1_13~0))))))) is different from false [2024-11-28 04:33:04,351 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_3~0)) (.cse0 ((_ zero_extend 24) c_~var_1_2~0))) (and (bvuge (_ bv4294967288 32) (bvadd c_~var_1_9~0 (bvneg .cse0))) (not (bvslt .cse0 (bvneg c_~var_1_5~0))) (= c_~var_1_14~0 c_~var_1_16~0) (not (bvsgt c_~var_1_1~0 .cse1)) (not (fp.gt (fp.mul c_currentRoundingMode c_~var_1_12~0 c_~var_1_11~0) c_~var_1_13~0)) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.geq c_~var_1_16~0 .cse2) (fp.leq c_~var_1_16~0 .cse3)) (and (fp.leq c_~var_1_16~0 (fp.neg .cse2)) (fp.geq c_~var_1_16~0 (fp.neg .cse3))))) (bvsle c_~var_1_4~0 (_ bv1073741823 32)) (let ((.cse5 (bvadd c_~var_1_4~0 .cse0))) (let ((.cse4 (bvsgt .cse1 .cse5))) (or (and .cse4 (= c_~var_1_1~0 .cse1)) (and (not .cse4) (= c_~var_1_1~0 .cse5))))) (= c_~var_1_5~0 (bvadd (bvneg .cse1) c_~var_1_4~0 .cse0)) (= (_ bv0 16) (bvadd (_ bv10 16) c_~var_1_6~0)) (let ((.cse6 (= (_ bv0 8) c_~var_1_10~0))) (or (and (= (_ bv1 8) c_~var_1_8~0) .cse6) (and (not .cse6) (= (_ bv0 8) c_~var_1_8~0)))) (let ((.cse8 ((_ zero_extend 24) c_~var_1_18~0))) (let ((.cse7 (bvsgt .cse0 .cse8))) (or (and (= c_~var_1_17~0 .cse0) .cse7) (and (not .cse7) (= c_~var_1_17~0 .cse8))))) (bvslt .cse1 .cse0) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse10 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_16~0))) (let ((.cse11 (fp.lt c_~var_1_13~0 .cse10)) (.cse9 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_11~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0)) ((_ to_fp 11 53) c_currentRoundingMode (/ 46.0 5.0))))) (or (and (fp.lt .cse9 .cse10) (not .cse11)) (and .cse11 (fp.lt .cse9 c_~var_1_13~0))))))) is different from true