./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c --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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:59:26,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:59:26,481 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:59:26,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:59:26,486 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:59:26,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:59:26,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:59:26,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:59:26,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:59:26,507 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:59:26,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:59:26,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:59:26,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:59:26,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:59:26,508 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:59:26,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:59:26,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:59:26,508 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:59:26,509 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:59:26,509 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:59:26,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:59:26,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:59:26,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:59:26,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:59:26,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:59:26,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:59:26,511 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:59:26,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:59:26,511 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366 [2024-12-02 12:59:26,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:59:26,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:59:26,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:59:26,780 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:59:26,780 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:59:26,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c [2024-12-02 12:59:29,378 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data/f33d53938/b2b515b573dd400eafa5d9b1f459528b/FLAG84966ccfc [2024-12-02 12:59:29,606 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:59:29,607 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c [2024-12-02 12:59:29,614 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data/f33d53938/b2b515b573dd400eafa5d9b1f459528b/FLAG84966ccfc [2024-12-02 12:59:29,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data/f33d53938/b2b515b573dd400eafa5d9b1f459528b [2024-12-02 12:59:29,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:59:29,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:59:29,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:59:29,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:59:29,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:59:29,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:59:29" (1/1) ... [2024-12-02 12:59:29,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f496c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:29, skipping insertion in model container [2024-12-02 12:59:29,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:59:29" (1/1) ... [2024-12-02 12:59:29,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:59:30,110 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009] [2024-12-02 12:59:30,115 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378] [2024-12-02 12:59:30,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:59:30,161 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:59:30,174 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009] [2024-12-02 12:59:30,175 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378] [2024-12-02 12:59:30,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:59:30,211 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:59:30,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30 WrapperNode [2024-12-02 12:59:30,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:59:30,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:59:30,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:59:30,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:59:30,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,242 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-12-02 12:59:30,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:59:30,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:59:30,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:59:30,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:59:30,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,254 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,266 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 12:59:30,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,272 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:59:30,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:59:30,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:59:30,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:59:30,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (1/1) ... [2024-12-02 12:59:30,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:59:30,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:59:30,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:59:30,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:59:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:59:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-12-02 12:59:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-12-02 12:59:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:59:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:59:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:59:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:59:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:59:30,410 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:59:30,412 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:59:30,731 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-12-02 12:59:30,731 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:59:30,740 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:59:30,740 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 12:59:30,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:30 BoogieIcfgContainer [2024-12-02 12:59:30,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:59:30,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:59:30,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:59:30,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:59:30,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:59:29" (1/3) ... [2024-12-02 12:59:30,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc62ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:59:30, skipping insertion in model container [2024-12-02 12:59:30,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:30" (2/3) ... [2024-12-02 12:59:30,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc62ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:59:30, skipping insertion in model container [2024-12-02 12:59:30,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:30" (3/3) ... [2024-12-02 12:59:30,748 INFO L128 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_2a.c.cil.c [2024-12-02 12:59:30,762 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:59:30,763 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_1+soft_float_2a.c.cil.c that has 3 procedures, 82 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 12:59:30,814 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:59:30,825 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;@7a18aa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:59:30,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 12:59:30,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 75 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 12:59:30,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 12:59:30,832 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:59:30,832 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:59:30,833 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:59:30,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:59:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1530844763, now seen corresponding path program 1 times [2024-12-02 12:59:30,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:59:30,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539813964] [2024-12-02 12:59:30,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:59:30,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:59:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:59:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:59:30,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:59:30,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539813964] [2024-12-02 12:59:30,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539813964] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:59:30,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:59:30,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:59:30,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391642639] [2024-12-02 12:59:30,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:59:30,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:59:30,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:59:30,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:59:30,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:59:30,946 INFO L87 Difference]: Start difference. First operand has 82 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 75 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-12-02 12:59:30,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:59:30,966 INFO L93 Difference]: Finished difference Result 159 states and 241 transitions. [2024-12-02 12:59:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:59:30,967 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2024-12-02 12:59:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:59:30,972 INFO L225 Difference]: With dead ends: 159 [2024-12-02 12:59:30,972 INFO L226 Difference]: Without dead ends: 73 [2024-12-02 12:59:30,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:59:30,977 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:59:30,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:59:30,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-12-02 12:59:31,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-12-02 12:59:31,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 66 states have internal predecessors, (93), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 12:59:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2024-12-02 12:59:31,012 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 7 [2024-12-02 12:59:31,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:59:31,012 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2024-12-02 12:59:31,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-12-02 12:59:31,013 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2024-12-02 12:59:31,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 12:59:31,013 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:59:31,013 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:59:31,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:59:31,013 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:59:31,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:59:31,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1530904345, now seen corresponding path program 1 times [2024-12-02 12:59:31,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:59:31,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942161797] [2024-12-02 12:59:31,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:59:31,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:59:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:59:31,030 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 12:59:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:59:31,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 12:59:31,050 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 12:59:31,051 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-12-02 12:59:31,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-12-02 12:59:31,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:59:31,054 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 12:59:31,064 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:59:31,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:59:31 BoogieIcfgContainer [2024-12-02 12:59:31,067 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:59:31,067 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:59:31,067 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:59:31,068 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:59:31,068 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:30" (3/4) ... [2024-12-02 12:59:31,070 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 12:59:31,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:59:31,071 INFO L158 Benchmark]: Toolchain (without parser) took 1125.86ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 110.3MB in the end (delta: 8.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-12-02 12:59:31,071 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:59:31,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.69ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 104.0MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:59:31,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.95ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:59:31,072 INFO L158 Benchmark]: Boogie Preprocessor took 38.69ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 100.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:59:31,072 INFO L158 Benchmark]: RCFGBuilder took 459.10ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 79.2MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 12:59:31,073 INFO L158 Benchmark]: TraceAbstraction took 323.91ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 110.3MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:59:31,073 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 110.3MB in the end (delta: 13.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:59:31,075 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.69ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 104.0MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.95ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.69ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 100.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 459.10ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 79.2MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 323.91ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 110.3MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 110.3MB in the end (delta: 13.8kB). 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: 48]: 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 47, overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.39f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 113 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2024-12-02 12:59:31,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:59:32,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:59:33,064 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 12:59:33,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:59:33,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:59:33,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:59:33,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:59:33,094 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:59:33,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:59:33,094 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:59:33,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:59:33,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:59:33,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:59:33,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:59:33,095 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:59:33,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:59:33,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:59:33,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:59:33,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:59:33,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:59:33,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:59:33,096 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:59:33,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:59:33,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:59:33,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:59:33,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:59:33,098 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 12:59:33,098 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 12:59:33,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:59:33,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:59:33,098 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:59:33,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:59:33,098 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366 [2024-12-02 12:59:33,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:59:33,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:59:33,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:59:33,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:59:33,340 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:59:33,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c [2024-12-02 12:59:36,014 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data/9b9c7ed4a/945ace49fb4c4c228ef71e6cab74ff8f/FLAG7adc4c205 [2024-12-02 12:59:36,195 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:59:36,196 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c [2024-12-02 12:59:36,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data/9b9c7ed4a/945ace49fb4c4c228ef71e6cab74ff8f/FLAG7adc4c205 [2024-12-02 12:59:36,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/data/9b9c7ed4a/945ace49fb4c4c228ef71e6cab74ff8f [2024-12-02 12:59:36,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:59:36,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:59:36,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:59:36,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:59:36,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:59:36,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bad0a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36, skipping insertion in model container [2024-12-02 12:59:36,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:59:36,394 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009] [2024-12-02 12:59:36,399 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378] [2024-12-02 12:59:36,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:59:36,446 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:59:36,460 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009] [2024-12-02 12:59:36,461 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_21bc8972-e3f5-4d9e-bb88-7150cff7b235/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378] [2024-12-02 12:59:36,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:59:36,501 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:59:36,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36 WrapperNode [2024-12-02 12:59:36,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:59:36,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:59:36,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:59:36,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:59:36,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,536 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-12-02 12:59:36,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:59:36,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:59:36,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:59:36,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:59:36,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,560 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 12:59:36,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,567 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:59:36,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:59:36,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:59:36,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:59:36,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (1/1) ... [2024-12-02 12:59:36,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:59:36,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:59:36,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:59:36,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:59:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:59:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 12:59:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-12-02 12:59:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-12-02 12:59:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:59:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:59:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:59:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:59:36,696 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:59:36,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:59:41,153 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-12-02 12:59:41,154 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:59:41,161 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:59:41,161 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 12:59:41,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:41 BoogieIcfgContainer [2024-12-02 12:59:41,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:59:41,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:59:41,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:59:41,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:59:41,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:59:36" (1/3) ... [2024-12-02 12:59:41,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330ef448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:59:41, skipping insertion in model container [2024-12-02 12:59:41,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:36" (2/3) ... [2024-12-02 12:59:41,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330ef448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:59:41, skipping insertion in model container [2024-12-02 12:59:41,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:41" (3/3) ... [2024-12-02 12:59:41,169 INFO L128 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_2a.c.cil.c [2024-12-02 12:59:41,179 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:59:41,180 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_1+soft_float_2a.c.cil.c that has 3 procedures, 59 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 12:59:41,212 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:59:41,220 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;@14f2d57e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:59:41,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 12:59:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 52 states have internal predecessors, (77), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 12:59:41,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 12:59:41,227 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:59:41,227 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:59:41,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:59:41,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:59:41,231 INFO L85 PathProgramCache]: Analyzing trace with hash 78502818, now seen corresponding path program 1 times [2024-12-02 12:59:41,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:59:41,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223025667] [2024-12-02 12:59:41,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:59:41,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:59:41,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:59:41,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:59:41,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 12:59:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:59:41,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:59:41,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:59:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:59:41,684 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:59:41,684 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:59:41,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223025667] [2024-12-02 12:59:41,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223025667] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:59:41,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:59:41,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:59:41,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314822730] [2024-12-02 12:59:41,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:59:41,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:59:41,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:59:41,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:59:41,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:59:41,703 INFO L87 Difference]: Start difference. First operand has 59 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 52 states have internal predecessors, (77), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-12-02 12:59:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:59:41,717 INFO L93 Difference]: Finished difference Result 113 states and 171 transitions. [2024-12-02 12:59:41,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:59:41,719 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2024-12-02 12:59:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:59:41,723 INFO L225 Difference]: With dead ends: 113 [2024-12-02 12:59:41,723 INFO L226 Difference]: Without dead ends: 50 [2024-12-02 12:59:41,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:59:41,727 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:59:41,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:59:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-12-02 12:59:41,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-12-02 12:59:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 12:59:41,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2024-12-02 12:59:41,750 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 7 [2024-12-02 12:59:41,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:59:41,751 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2024-12-02 12:59:41,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-12-02 12:59:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2024-12-02 12:59:41,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 12:59:41,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:59:41,751 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:59:41,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 12:59:41,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:59:41,952 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:59:41,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:59:41,953 INFO L85 PathProgramCache]: Analyzing trace with hash 78562400, now seen corresponding path program 1 times [2024-12-02 12:59:41,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:59:41,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183193506] [2024-12-02 12:59:41,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:59:41,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:59:41,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:59:41,955 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:59:41,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 12:59:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:59:49,977 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:00:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:00:52,740 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 13:00:52,741 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:00:52,742 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-12-02 13:00:52,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-12-02 13:00:52,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 13:00:52,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:00:52,946 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 13:00:52,961 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:00:52,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:00:52 BoogieIcfgContainer [2024-12-02 13:00:52,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:00:52,965 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:00:52,965 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:00:52,965 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:00:52,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:41" (3/4) ... [2024-12-02 13:00:52,966 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 13:00:52,996 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-12-02 13:00:53,037 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:00:53,038 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:00:53,038 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:00:53,039 INFO L158 Benchmark]: Toolchain (without parser) took 76816.70ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 38.3MB in the end (delta: 31.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-12-02 13:00:53,039 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:00:53,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.45ms. Allocated memory is still 92.3MB. Free memory was 69.3MB in the beginning and 54.5MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:00:53,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.96ms. Allocated memory is still 92.3MB. Free memory was 54.5MB in the beginning and 52.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:00:53,040 INFO L158 Benchmark]: Boogie Preprocessor took 40.16ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:00:53,040 INFO L158 Benchmark]: RCFGBuilder took 4584.17ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 63.3MB in the end (delta: -12.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-12-02 13:00:53,040 INFO L158 Benchmark]: TraceAbstraction took 71801.10ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 42.4MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 13:00:53,040 INFO L158 Benchmark]: Witness Printer took 73.20ms. Allocated memory is still 92.3MB. Free memory was 42.4MB in the beginning and 38.3MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:00:53,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.45ms. Allocated memory is still 92.3MB. Free memory was 69.3MB in the beginning and 54.5MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.96ms. Allocated memory is still 92.3MB. Free memory was 54.5MB in the beginning and 52.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.16ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 4584.17ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 63.3MB in the end (delta: -12.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 71801.10ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 42.4MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 73.20ms. Allocated memory is still 92.3MB. Free memory was 42.4MB in the beginning and 38.3MB in the end (delta: 4.1MB). 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [result=1.3984375] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 71.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 80 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 8.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 proved your program to be incorrect! [2024-12-02 13:00:53,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bc8972-e3f5-4d9e-bb88-7150cff7b235/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE