./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:27:07,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:27:07,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:27:07,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:27:07,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:27:07,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:27:07,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:27:07,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:27:07,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:27:07,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:27:07,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:27:07,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:27:07,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:27:07,383 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:27:07,384 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:27:07,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:27:07,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:27:07,384 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:27:07,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:27:07,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:27:07,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:27:07,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:27:07,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:27:07,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:27:07,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:27:07,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:27:07,386 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:27:07,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:27:07,386 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:27:07,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:27:07,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:27:07,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:27:07,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:07,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:27:07,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:27:07,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:27:07,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:27:07,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:07,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:27:07,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:27:07,389 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:27:07,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:27:07,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:27:07,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:27:07,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:27:07,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:27:07,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:27:07,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:27:07,390 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_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 [2024-11-24 00:27:07,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:27:07,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:27:07,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:27:07,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:27:07,762 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:27:07,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2024-11-24 00:27:10,931 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data/13d2ae869/e9b80320d442466faa25032092c18bc7/FLAG64a67d2df [2024-11-24 00:27:11,272 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:27:11,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/sv-benchmarks/c/floats-cbmc-regression/float3.c [2024-11-24 00:27:11,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data/13d2ae869/e9b80320d442466faa25032092c18bc7/FLAG64a67d2df [2024-11-24 00:27:11,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data/13d2ae869/e9b80320d442466faa25032092c18bc7 [2024-11-24 00:27:11,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:27:11,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:27:11,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:27:11,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:27:11,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:27:11,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4538ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11, skipping insertion in model container [2024-11-24 00:27:11,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:27:11,563 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_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2024-11-24 00:27:11,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:27:11,580 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:27:11,602 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_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2024-11-24 00:27:11,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:27:11,625 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:27:11,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11 WrapperNode [2024-11-24 00:27:11,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:27:11,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:27:11,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:27:11,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:27:11,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,672 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2024-11-24 00:27:11,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:27:11,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:27:11,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:27:11,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:27:11,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,704 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:27:11,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,713 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:27:11,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:27:11,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:27:11,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:27:11,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (1/1) ... [2024-11-24 00:27:11,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:11,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:11,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:27:11,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:27:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:27:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:27:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:27:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:27:11,858 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:27:11,861 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:27:11,992 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-24 00:27:11,992 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:27:12,005 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:27:12,006 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:27:12,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:12 BoogieIcfgContainer [2024-11-24 00:27:12,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:27:12,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:27:12,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:27:12,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:27:12,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:27:11" (1/3) ... [2024-11-24 00:27:12,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4832ea18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:27:12, skipping insertion in model container [2024-11-24 00:27:12,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:11" (2/3) ... [2024-11-24 00:27:12,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4832ea18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:27:12, skipping insertion in model container [2024-11-24 00:27:12,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:12" (3/3) ... [2024-11-24 00:27:12,023 INFO L128 eAbstractionObserver]: Analyzing ICFG float3.c [2024-11-24 00:27:12,043 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:27:12,045 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float3.c that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:27:12,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:27:12,128 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;@286990f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:27:12,129 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:27:12,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-11-24 00:27:12,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 00:27:12,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:12,143 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:12,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:12,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2024-11-24 00:27:12,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:12,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507141020] [2024-11-24 00:27:12,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:12,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:27:12,246 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:27:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:27:12,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:27:12,285 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:27:12,287 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:27:12,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:27:12,295 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 00:27:12,321 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:27:12,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:27:12 BoogieIcfgContainer [2024-11-24 00:27:12,325 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:27:12,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:27:12,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:27:12,326 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:27:12,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:12" (3/4) ... [2024-11-24 00:27:12,332 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:27:12,333 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:27:12,335 INFO L158 Benchmark]: Toolchain (without parser) took 1010.23ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 58.7MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-24 00:27:12,336 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:27:12,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.60ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.3MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:27:12,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.79ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:27:12,339 INFO L158 Benchmark]: Boogie Preprocessor took 48.62ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.1MB in the end (delta: 872.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:27:12,341 INFO L158 Benchmark]: RCFGBuilder took 283.75ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 71.2MB in the end (delta: 8.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:27:12,345 INFO L158 Benchmark]: TraceAbstraction took 313.06ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 59.0MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:27:12,346 INFO L158 Benchmark]: Witness Printer took 7.03ms. Allocated memory is still 117.4MB. Free memory was 59.0MB in the beginning and 58.7MB in the end (delta: 275.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:27:12,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.60ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.3MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.79ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.62ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.1MB in the end (delta: 872.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 283.75ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 71.2MB in the end (delta: 8.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 313.06ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 59.0MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 7.03ms. Allocated memory is still 117.4MB. Free memory was 59.0MB in the beginning and 58.7MB in the end (delta: 275.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 26]: 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 someBinaryArithmeticDOUBLEoperation at line 22, overapproximation of someBinaryDOUBLEComparisonOperation at line 26. Possible FailurePath: [L6] double d = 0.0; VAL [d=0] [L15] int x = 2; [L17] COND TRUE __VERIFIER_nondet_int() [L18] x = 4 VAL [d=0] [L20] CALL f1() [L10] d = 1.0 VAL [d=1] [L20] RET f1() [L22] d += (x == 2) [L24] d += (x > 3) [L26] COND TRUE !(d == 2.0) [L26] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 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=11occurred 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, 7 NumberOfCodeBlocks, 7 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 [2024-11-24 00:27:12,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/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_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:27:15,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:27:15,559 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:27:15,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:27:15,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:27:15,616 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:27:15,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:27:15,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:27:15,618 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:27:15,619 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:27:15,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:27:15,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:27:15,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:27:15,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:27:15,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:27:15,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:27:15,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:27:15,622 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:27:15,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:27:15,623 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:27:15,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:27:15,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:27:15,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:27:15,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:15,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:27:15,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:27:15,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:27:15,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:15,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:27:15,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:27:15,625 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_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 [2024-11-24 00:27:15,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:27:16,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:27:16,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:27:16,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:27:16,014 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:27:16,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2024-11-24 00:27:19,299 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data/6f27aec70/5973fe1269bb45c18ce966f66941dac8/FLAG4ea8cfc59 [2024-11-24 00:27:19,613 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:27:19,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/sv-benchmarks/c/floats-cbmc-regression/float3.c [2024-11-24 00:27:19,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data/6f27aec70/5973fe1269bb45c18ce966f66941dac8/FLAG4ea8cfc59 [2024-11-24 00:27:19,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/data/6f27aec70/5973fe1269bb45c18ce966f66941dac8 [2024-11-24 00:27:19,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:27:19,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:27:19,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:27:19,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:27:19,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:27:19,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:19,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3135a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19, skipping insertion in model container [2024-11-24 00:27:19,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:19,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:27:19,886 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_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2024-11-24 00:27:19,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:27:19,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:27:19,931 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_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2024-11-24 00:27:19,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:27:19,953 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:27:19,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19 WrapperNode [2024-11-24 00:27:19,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:27:19,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:27:19,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:27:19,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:27:19,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:19,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,001 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2024-11-24 00:27:20,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:27:20,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:27:20,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:27:20,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:27:20,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,026 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:27:20,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,033 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:27:20,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:27:20,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:27:20,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:27:20,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (1/1) ... [2024-11-24 00:27:20,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:20,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:20,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:27:20,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:27:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:27:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:27:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:27:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:27:20,164 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:27:20,166 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:27:21,513 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-24 00:27:21,514 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:27:21,526 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:27:21,526 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:27:21,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:21 BoogieIcfgContainer [2024-11-24 00:27:21,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:27:21,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:27:21,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:27:21,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:27:21,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:27:19" (1/3) ... [2024-11-24 00:27:21,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae99de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:27:21, skipping insertion in model container [2024-11-24 00:27:21,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:19" (2/3) ... [2024-11-24 00:27:21,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae99de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:27:21, skipping insertion in model container [2024-11-24 00:27:21,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:21" (3/3) ... [2024-11-24 00:27:21,545 INFO L128 eAbstractionObserver]: Analyzing ICFG float3.c [2024-11-24 00:27:21,585 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:27:21,588 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float3.c that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:27:21,674 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:27:21,697 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;@1ec5d88b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:27:21,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:27:21,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-11-24 00:27:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 00:27:21,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:21,713 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:21,714 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:21,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:21,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2024-11-24 00:27:21,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:27:21,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343117422] [2024-11-24 00:27:21,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:21,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:27:21,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:27:21,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:27:21,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:27:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:22,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:27:22,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:22,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:27:22,500 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:27:22,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343117422] [2024-11-24 00:27:22,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343117422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:22,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:22,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:27:22,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608095679] [2024-11-24 00:27:22,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:22,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:27:22,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:27:22,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:27:22,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:27:22,536 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-24 00:27:24,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:27:25,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:25,020 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-24 00:27:25,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:27:25,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) Word has length 7 [2024-11-24 00:27:25,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:25,030 INFO L225 Difference]: With dead ends: 19 [2024-11-24 00:27:25,031 INFO L226 Difference]: Without dead ends: 8 [2024-11-24 00:27:25,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:27:25,040 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:25,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 17 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 00:27:25,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-24 00:27:25,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-24 00:27:25,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2024-11-24 00:27:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2024-11-24 00:27:25,076 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2024-11-24 00:27:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:25,076 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2024-11-24 00:27:25,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-24 00:27:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-11-24 00:27:25,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 00:27:25,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:25,078 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:25,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 00:27:25,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:27:25,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:25,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:25,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812423, now seen corresponding path program 1 times [2024-11-24 00:27:25,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:27:25,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549700193] [2024-11-24 00:27:25,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:25,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:27:25,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:27:25,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:27:25,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:27:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:25,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:27:25,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:25,827 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:27:25,827 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:27:25,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549700193] [2024-11-24 00:27:25,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549700193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:25,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:25,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:27:25,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114922931] [2024-11-24 00:27:25,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:27:25,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:27:25,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:27:25,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:27:25,832 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-24 00:27:27,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:27,466 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2024-11-24 00:27:27,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:27:27,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) Word has length 7 [2024-11-24 00:27:27,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:27,483 INFO L225 Difference]: With dead ends: 8 [2024-11-24 00:27:27,483 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:27:27,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:27:27,484 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:27,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:27:27,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:27:27,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:27:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:27,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:27:27,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2024-11-24 00:27:27,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:27,487 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:27:27,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-24 00:27:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:27:27,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:27:27,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:27:27,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 00:27:27,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:27:27,694 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:27:27,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:27:27,701 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:27:27,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:27:27 BoogieIcfgContainer [2024-11-24 00:27:27,707 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:27:27,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:27:27,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:27:27,708 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:27:27,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:21" (3/4) ... [2024-11-24 00:27:27,711 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:27:27,718 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-24 00:27:27,719 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 00:27:27,719 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:27:27,719 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:27:27,793 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:27:27,794 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:27:27,797 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:27:27,798 INFO L158 Benchmark]: Toolchain (without parser) took 8127.14ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 35.2MB in the end (delta: 26.9MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2024-11-24 00:27:27,798 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:27:27,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.13ms. Allocated memory is still 83.9MB. Free memory was 61.8MB in the beginning and 50.7MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:27:27,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.58ms. Allocated memory is still 83.9MB. Free memory was 50.7MB in the beginning and 49.7MB in the end (delta: 952.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:27:27,799 INFO L158 Benchmark]: Boogie Preprocessor took 35.81ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 48.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:27:27,799 INFO L158 Benchmark]: RCFGBuilder took 1486.91ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 39.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:27:27,800 INFO L158 Benchmark]: TraceAbstraction took 6177.34ms. Allocated memory is still 83.9MB. Free memory was 38.6MB in the beginning and 39.8MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:27:27,802 INFO L158 Benchmark]: Witness Printer took 89.17ms. Allocated memory is still 83.9MB. Free memory was 39.4MB in the beginning and 35.2MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:27:27,804 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.13ms. Allocated memory is still 83.9MB. Free memory was 61.8MB in the beginning and 50.7MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.58ms. Allocated memory is still 83.9MB. Free memory was 50.7MB in the beginning and 49.7MB in the end (delta: 952.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.81ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 48.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1486.91ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 39.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6177.34ms. Allocated memory is still 83.9MB. Free memory was 38.6MB in the beginning and 39.8MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 89.17ms. Allocated memory is still 83.9MB. Free memory was 39.4MB in the beginning and 35.2MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 26]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 10 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 4 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-24 00:27:27,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b8bcf6-6039-47cf-b0c8-8710d1c0fe66/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE