./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:39:46,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:39:47,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:39:47,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:39:47,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:39:47,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:39:47,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:39:47,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:39:47,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:39:47,081 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:39:47,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:39:47,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:39:47,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:39:47,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:39:47,082 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:39:47,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:39:47,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:39:47,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:39:47,084 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:39:47,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:39:47,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:39:47,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:39:47,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:39:47,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:39:47,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:39:47,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:39:47,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:39:47,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:39:47,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:39:47,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:39:47,085 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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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 -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2024-11-28 02:39:47,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:39:47,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:39:47,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:39:47,389 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:39:47,390 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:39:47,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2024-11-28 02:39:50,368 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data/5f0121d33/2a087dfc856b40b0a65972ded79f8bfb/FLAGd577e2f79 [2024-11-28 02:39:50,736 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:39:50,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2024-11-28 02:39:50,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data/5f0121d33/2a087dfc856b40b0a65972ded79f8bfb/FLAGd577e2f79 [2024-11-28 02:39:50,769 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data/5f0121d33/2a087dfc856b40b0a65972ded79f8bfb [2024-11-28 02:39:50,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:39:50,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:39:50,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:39:50,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:39:50,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:39:50,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:39:50" (1/1) ... [2024-11-28 02:39:50,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2451f3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:50, skipping insertion in model container [2024-11-28 02:39:50,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:39:50" (1/1) ... [2024-11-28 02:39:50,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:39:51,454 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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2024-11-28 02:39:51,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:39:51,466 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:39:51,499 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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2024-11-28 02:39:51,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:39:51,610 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:39:51,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51 WrapperNode [2024-11-28 02:39:51,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:39:51,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:39:51,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:39:51,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:39:51,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,651 INFO L138 Inliner]: procedures = 446, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2024-11-28 02:39:51,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:39:51,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:39:51,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:39:51,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:39:51,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,661 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,671 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 02:39:51,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,676 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:39:51,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:39:51,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:39:51,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:39:51,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (1/1) ... [2024-11-28 02:39:51,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:39:51,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:39:51,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:39:51,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:39:51,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:39:51,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:39:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:39:51,847 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:39:51,849 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:39:52,009 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-28 02:39:52,009 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:39:52,018 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:39:52,018 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:39:52,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:39:52 BoogieIcfgContainer [2024-11-28 02:39:52,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:39:52,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:39:52,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:39:52,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:39:52,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:39:50" (1/3) ... [2024-11-28 02:39:52,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7a06bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:39:52, skipping insertion in model container [2024-11-28 02:39:52,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:51" (2/3) ... [2024-11-28 02:39:52,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7a06bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:39:52, skipping insertion in model container [2024-11-28 02:39:52,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:39:52" (3/3) ... [2024-11-28 02:39:52,029 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2024-11-28 02:39:52,048 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:39:52,050 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp8.i that has 1 procedures, 17 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:39:52,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:39:52,117 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;@3e15169c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:39:52,118 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:39:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:39:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:39:52,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:39:52,130 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:39:52,131 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:39:52,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:39:52,138 INFO L85 PathProgramCache]: Analyzing trace with hash 28722624, now seen corresponding path program 1 times [2024-11-28 02:39:52,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:39:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837516825] [2024-11-28 02:39:52,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:39:52,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:39:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:39:52,227 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:39:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:39:52,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:39:52,252 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:39:52,253 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:39:52,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:39:52,259 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 02:39:52,276 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:39:52,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:39:52 BoogieIcfgContainer [2024-11-28 02:39:52,280 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:39:52,280 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:39:52,280 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:39:52,281 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:39:52,281 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:39:52" (3/4) ... [2024-11-28 02:39:52,284 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:39:52,284 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:39:52,286 INFO L158 Benchmark]: Toolchain (without parser) took 1512.90ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 78.3MB in the end (delta: 14.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-28 02:39:52,286 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:39:52,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 837.59ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 50.3MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-28 02:39:52,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.15ms. Allocated memory is still 117.4MB. Free memory was 50.3MB in the beginning and 48.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:39:52,287 INFO L158 Benchmark]: Boogie Preprocessor took 30.16ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 47.1MB in the end (delta: 971.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:39:52,287 INFO L158 Benchmark]: RCFGBuilder took 336.44ms. Allocated memory is still 117.4MB. Free memory was 46.8MB in the beginning and 91.8MB in the end (delta: -45.0MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2024-11-28 02:39:52,287 INFO L158 Benchmark]: TraceAbstraction took 259.17ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 78.9MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:39:52,288 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 117.4MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:39:52,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 837.59ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 50.3MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.15ms. Allocated memory is still 117.4MB. Free memory was 50.3MB in the beginning and 48.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.16ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 47.1MB in the end (delta: 971.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.44ms. Allocated memory is still 117.4MB. Free memory was 46.8MB in the beginning and 91.8MB in the end (delta: -45.0MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 259.17ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 78.9MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 117.4MB. Free memory is still 78.3MB. 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: 969]: 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 969, overapproximation of to_real at line 965, overapproximation of someBinaryArithmeticFLOAToperation at line 967, overapproximation of someUnaryFLOAToperation at line 963. Possible FailurePath: [L963] float f = -0x1p-129f; [L964] float g = 0x1p-129f; [L965] float target = 0x0; [L967] float result = f + g; [L969] EXPR result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target)) [L969] COND TRUE !(result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target))) [L969] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 02:39:52,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:39:54,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:39:55,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:39:55,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:39:55,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:39:55,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:39:55,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:39:55,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:39:55,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:39:55,169 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:39:55,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:39:55,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:39:55,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:39:55,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:39:55,169 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:39:55,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:39:55,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:39:55,170 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:39:55,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:39:55,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:39:55,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:39:55,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:39:55,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:39:55,171 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:39:55,171 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:39:55,171 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:39:55,171 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:39:55,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:39:55,172 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:39:55,172 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:39:55,172 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:39:55,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:39:55,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:39:55,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:39:55,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:39:55,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:39:55,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:39:55,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:39:55,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:39:55,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:39:55,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:39:55,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:39:55,174 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:39:55,174 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:39:55,174 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:39:55,174 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:39:55,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:39:55,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:39:55,175 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:39:55,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:39:55,175 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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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 -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2024-11-28 02:39:55,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:39:55,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:39:55,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:39:55,520 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:39:55,520 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:39:55,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2024-11-28 02:39:58,645 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data/3aad2ee24/d66d5619df3c4d4d862ff87b08a60709/FLAGa78864288 [2024-11-28 02:39:59,025 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:39:59,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2024-11-28 02:39:59,044 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data/3aad2ee24/d66d5619df3c4d4d862ff87b08a60709/FLAGa78864288 [2024-11-28 02:39:59,211 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/data/3aad2ee24/d66d5619df3c4d4d862ff87b08a60709 [2024-11-28 02:39:59,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:39:59,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:39:59,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:39:59,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:39:59,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:39:59,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:39:59,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3b853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59, skipping insertion in model container [2024-11-28 02:39:59,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:39:59,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:39:59,742 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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2024-11-28 02:39:59,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:39:59,763 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:39:59,811 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_c80fd122-c756-4274-8bb7-0dc5f09d88f4/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2024-11-28 02:39:59,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:39:59,940 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:39:59,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59 WrapperNode [2024-11-28 02:39:59,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:39:59,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:39:59,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:39:59,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:39:59,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:39:59,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:39:59,997 INFO L138 Inliner]: procedures = 447, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-11-28 02:39:59,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:39:59,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:39:59,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:39:59,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:40:00,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,018 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 02:40:00,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,023 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:40:00,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:40:00,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:40:00,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:40:00,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (1/1) ... [2024-11-28 02:40:00,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:00,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:40:00,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:40:00,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:40:00,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:40:00,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:40:00,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:40:00,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:40:00,212 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:40:00,214 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:40:00,376 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-28 02:40:00,377 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:40:00,388 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:40:00,388 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:40:00,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:00 BoogieIcfgContainer [2024-11-28 02:40:00,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:40:00,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:40:00,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:40:00,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:40:00,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:39:59" (1/3) ... [2024-11-28 02:40:00,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e572b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:00, skipping insertion in model container [2024-11-28 02:40:00,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:39:59" (2/3) ... [2024-11-28 02:40:00,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e572b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:00, skipping insertion in model container [2024-11-28 02:40:00,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:00" (3/3) ... [2024-11-28 02:40:00,404 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2024-11-28 02:40:00,418 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:40:00,419 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp8.i that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:40:00,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:40:00,480 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;@2f85ad57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:40:00,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:40:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:40:00,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 02:40:00,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:40:00,490 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 02:40:00,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:40:00,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:00,495 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2024-11-28 02:40:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:40:00,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030226732] [2024-11-28 02:40:00,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:00,507 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 02:40:00,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:40:00,509 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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 02:40:00,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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 02:40:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:40:00,601 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:40:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:40:00,663 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 02:40:00,664 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:40:00,666 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:40:00,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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 02:40:00,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/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 02:40:00,871 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 02:40:00,888 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:40:00,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:40:00 BoogieIcfgContainer [2024-11-28 02:40:00,894 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:40:00,895 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:40:00,895 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:40:00,896 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:40:00,896 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:00" (3/4) ... [2024-11-28 02:40:00,899 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:40:00,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:40:00,901 INFO L158 Benchmark]: Toolchain (without parser) took 1685.80ms. Allocated memory was 83.9MB in the beginning and 184.5MB in the end (delta: 100.7MB). Free memory was 59.5MB in the beginning and 119.6MB in the end (delta: -60.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-28 02:40:00,901 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:40:00,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.53ms. Allocated memory was 83.9MB in the beginning and 184.5MB in the end (delta: 100.7MB). Free memory was 59.4MB in the beginning and 145.9MB in the end (delta: -86.5MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-28 02:40:00,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.00ms. Allocated memory is still 184.5MB. Free memory was 145.9MB in the beginning and 143.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:40:00,903 INFO L158 Benchmark]: Boogie Preprocessor took 30.71ms. Allocated memory is still 184.5MB. Free memory was 143.9MB in the beginning and 142.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:40:00,904 INFO L158 Benchmark]: RCFGBuilder took 359.24ms. Allocated memory is still 184.5MB. Free memory was 142.3MB in the beginning and 132.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:40:00,904 INFO L158 Benchmark]: TraceAbstraction took 500.90ms. Allocated memory is still 184.5MB. Free memory was 131.7MB in the beginning and 120.0MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:40:00,904 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 184.5MB. Free memory was 120.0MB in the beginning and 119.6MB in the end (delta: 370.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:40:00,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 724.53ms. Allocated memory was 83.9MB in the beginning and 184.5MB in the end (delta: 100.7MB). Free memory was 59.4MB in the beginning and 145.9MB in the end (delta: -86.5MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.00ms. Allocated memory is still 184.5MB. Free memory was 145.9MB in the beginning and 143.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.71ms. Allocated memory is still 184.5MB. Free memory was 143.9MB in the beginning and 142.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 359.24ms. Allocated memory is still 184.5MB. Free memory was 142.3MB in the beginning and 132.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 500.90ms. Allocated memory is still 184.5MB. Free memory was 131.7MB in the beginning and 120.0MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 184.5MB. Free memory was 120.0MB in the beginning and 119.6MB in the end (delta: 370.4kB). 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: 969]: 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 __signbitl at line 969. Possible FailurePath: [L963] float f = -0x1p-129f; [L964] float g = 0x1p-129f; [L965] float target = 0x0; [L967] float result = f + g; VAL [result=0.0, target=0.0] [L969] COND TRUE !(result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target))) [L969] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 02:40:00,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80fd122-c756-4274-8bb7-0dc5f09d88f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample