./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.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_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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_67753625-65e0-413d-a003-fd4463b04b76/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 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:13:14,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:13:14,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 13:13:14,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:13:14,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:13:14,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:13:14,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:13:14,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:13:14,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:13:14,257 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:13:14,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:13:14,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:13:14,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:13:14,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:13:14,258 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:13:14,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:13:14,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:13:14,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:13:14,260 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:13:14,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:13:14,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:13:14,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:13:14,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:13:14,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:13:14,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:13:14,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:13:14,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:13:14,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:13:14,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:13:14,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:13:14,261 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_67753625-65e0-413d-a003-fd4463b04b76/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 -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2024-12-01 13:13:14,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:13:14,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:13:14,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:13:14,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:13:14,475 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:13:14,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2024-12-01 13:13:17,200 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data/1735bec90/9cc304590a2541da9aca436a57cb8c92/FLAG449f3bf98 [2024-12-01 13:13:17,435 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:13:17,436 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2024-12-01 13:13:17,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data/1735bec90/9cc304590a2541da9aca436a57cb8c92/FLAG449f3bf98 [2024-12-01 13:13:17,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data/1735bec90/9cc304590a2541da9aca436a57cb8c92 [2024-12-01 13:13:17,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:13:17,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:13:17,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:13:17,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:13:17,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:13:17,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:13:17" (1/1) ... [2024-12-01 13:13:17,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a292ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:17, skipping insertion in model container [2024-12-01 13:13:17,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:13:17" (1/1) ... [2024-12-01 13:13:17,819 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:13:17,966 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_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2024-12-01 13:13:17,971 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_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2024-12-01 13:13:18,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:13:18,015 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:13:18,026 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_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2024-12-01 13:13:18,027 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_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2024-12-01 13:13:18,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:13:18,066 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:13:18,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18 WrapperNode [2024-12-01 13:13:18,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:13:18,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:13:18,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:13:18,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:13:18,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,095 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-12-01 13:13:18,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:13:18,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:13:18,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:13:18,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:13:18,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,120 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]. [2024-12-01 13:13:18,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,125 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:13:18,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:13:18,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:13:18,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:13:18,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (1/1) ... [2024-12-01 13:13:18,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:13:18,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:13:18,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:13:18,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:13:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:13:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-12-01 13:13:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-12-01 13:13:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 13:13:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:13:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:13:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-01 13:13:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-01 13:13:18,259 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:13:18,261 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:13:18,566 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2024-12-01 13:13:18,566 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:13:18,576 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:13:18,576 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-01 13:13:18,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:13:18 BoogieIcfgContainer [2024-12-01 13:13:18,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:13:18,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:13:18,579 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:13:18,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:13:18,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:13:17" (1/3) ... [2024-12-01 13:13:18,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de03428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:13:18, skipping insertion in model container [2024-12-01 13:13:18,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:18" (2/3) ... [2024-12-01 13:13:18,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de03428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:13:18, skipping insertion in model container [2024-12-01 13:13:18,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:13:18" (3/3) ... [2024-12-01 13:13:18,586 INFO L128 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2024-12-01 13:13:18,600 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:13:18,602 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_1+soft_float_3a.c.cil.c that has 3 procedures, 81 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-01 13:13:18,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:13:18,674 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;@362b5898, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:13:18,674 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-01 13:13:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 74 states have internal predecessors, (111), 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) [2024-12-01 13:13:18,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-01 13:13:18,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:13:18,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:13:18,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:13:18,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:13:18,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1530844763, now seen corresponding path program 1 times [2024-12-01 13:13:18,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:13:18,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645742458] [2024-12-01 13:13:18,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:13:18,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:13:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:13:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:13:18,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:13:18,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645742458] [2024-12-01 13:13:18,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645742458] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:13:18,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:13:18,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 13:13:18,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035485429] [2024-12-01 13:13:18,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:13:18,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:13:18,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:13:18,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:13:18,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:13:18,817 INFO L87 Difference]: Start difference. First operand has 81 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 74 states have internal predecessors, (111), 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) [2024-12-01 13:13:18,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:13:18,839 INFO L93 Difference]: Finished difference Result 157 states and 239 transitions. [2024-12-01 13:13:18,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:13:18,841 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 [2024-12-01 13:13:18,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:13:18,846 INFO L225 Difference]: With dead ends: 157 [2024-12-01 13:13:18,847 INFO L226 Difference]: Without dead ends: 72 [2024-12-01 13:13:18,849 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 [2024-12-01 13:13:18,851 INFO L435 NwaCegarLoop]: 112 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, 112 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 [2024-12-01 13:13:18,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:13:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-12-01 13:13:18,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-12-01 13:13:18,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 64 states have (on average 1.4375) internal successors, (92), 65 states have internal predecessors, (92), 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) [2024-12-01 13:13:18,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2024-12-01 13:13:18,894 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 7 [2024-12-01 13:13:18,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:13:18,894 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2024-12-01 13:13:18,894 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) [2024-12-01 13:13:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2024-12-01 13:13:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-01 13:13:18,895 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:13:18,895 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:13:18,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 13:13:18,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:13:18,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:13:18,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1530904345, now seen corresponding path program 1 times [2024-12-01 13:13:18,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:13:18,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025272950] [2024-12-01 13:13:18,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:13:18,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:13:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:13:18,910 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 13:13:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:13:18,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 13:13:18,932 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 13:13:18,933 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-12-01 13:13:18,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-12-01 13:13:18,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:13:18,937 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-01 13:13:18,948 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 13:13:18,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:13:18 BoogieIcfgContainer [2024-12-01 13:13:18,951 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 13:13:18,951 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 13:13:18,951 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 13:13:18,952 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 13:13:18,952 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:13:18" (3/4) ... [2024-12-01 13:13:18,954 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-01 13:13:18,955 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 13:13:18,956 INFO L158 Benchmark]: Toolchain (without parser) took 1163.89ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 85.1MB in the end (delta: 7.6MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-12-01 13:13:18,956 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:13:18,957 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.24ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 78.4MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 13:13:18,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.71ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 76.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:13:18,957 INFO L158 Benchmark]: Boogie Preprocessor took 38.42ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:13:18,957 INFO L158 Benchmark]: RCFGBuilder took 441.41ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 54.1MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-01 13:13:18,957 INFO L158 Benchmark]: TraceAbstraction took 372.32ms. Allocated memory is still 117.4MB. Free memory was 53.6MB in the beginning and 85.7MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:13:18,957 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 85.1MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:13:18,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.24ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 78.4MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.71ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 76.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.42ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 441.41ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 54.1MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 372.32ms. Allocated memory is still 117.4MB. Free memory was 53.6MB in the beginning and 85.7MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 85.1MB in the end (delta: 21.1kB). 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 40, overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] 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, 81 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 112 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, 112 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=81occurred 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 [2024-12-01 13:13:18,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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_67753625-65e0-413d-a003-fd4463b04b76/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 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:13:20,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:13:21,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-01 13:13:21,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:13:21,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:13:21,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:13:21,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:13:21,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:13:21,033 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:13:21,034 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:13:21,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:13:21,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:13:21,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:13:21,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:13:21,034 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:13:21,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:13:21,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:13:21,035 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:13:21,036 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:13:21,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:13:21,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:13:21,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:13:21,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:13:21,037 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_67753625-65e0-413d-a003-fd4463b04b76/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 -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2024-12-01 13:13:21,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:13:21,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:13:21,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:13:21,295 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:13:21,296 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:13:21,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2024-12-01 13:13:24,120 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data/de4c72863/4dcd25ae94d24e07a7ec02b7631adb70/FLAG0fb289f1e [2024-12-01 13:13:24,325 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:13:24,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2024-12-01 13:13:24,335 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data/de4c72863/4dcd25ae94d24e07a7ec02b7631adb70/FLAG0fb289f1e [2024-12-01 13:13:24,351 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/data/de4c72863/4dcd25ae94d24e07a7ec02b7631adb70 [2024-12-01 13:13:24,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:13:24,355 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:13:24,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:13:24,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:13:24,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:13:24,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2376957b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24, skipping insertion in model container [2024-12-01 13:13:24,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,382 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:13:24,521 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_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2024-12-01 13:13:24,526 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_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2024-12-01 13:13:24,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:13:24,580 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:13:24,594 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_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2024-12-01 13:13:24,595 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_67753625-65e0-413d-a003-fd4463b04b76/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2024-12-01 13:13:24,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:13:24,640 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:13:24,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24 WrapperNode [2024-12-01 13:13:24,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:13:24,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:13:24,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:13:24,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:13:24,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,680 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-12-01 13:13:24,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:13:24,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:13:24,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:13:24,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:13:24,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,707 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]. [2024-12-01 13:13:24,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,715 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:13:24,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:13:24,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:13:24,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:13:24,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (1/1) ... [2024-12-01 13:13:24,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:13:24,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:13:24,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:13:24,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-01 13:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-12-01 13:13:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-12-01 13:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:13:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-01 13:13:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-01 13:13:24,852 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:13:24,853 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:13:29,295 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-12-01 13:13:29,295 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:13:29,303 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:13:29,303 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-01 13:13:29,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:13:29 BoogieIcfgContainer [2024-12-01 13:13:29,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:13:29,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:13:29,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:13:29,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:13:29,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:13:24" (1/3) ... [2024-12-01 13:13:29,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7392a03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:13:29, skipping insertion in model container [2024-12-01 13:13:29,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:13:24" (2/3) ... [2024-12-01 13:13:29,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7392a03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:13:29, skipping insertion in model container [2024-12-01 13:13:29,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:13:29" (3/3) ... [2024-12-01 13:13:29,313 INFO L128 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2024-12-01 13:13:29,325 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:13:29,326 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_1+soft_float_3a.c.cil.c that has 3 procedures, 58 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-01 13:13:29,364 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:13:29,373 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;@6ad7531d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:13:29,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-01 13:13:29,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 48 states have (on average 1.5833333333333333) internal successors, (76), 51 states have internal predecessors, (76), 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) [2024-12-01 13:13:29,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-01 13:13:29,382 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:13:29,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:13:29,383 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:13:29,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:13:29,388 INFO L85 PathProgramCache]: Analyzing trace with hash 78502818, now seen corresponding path program 1 times [2024-12-01 13:13:29,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:13:29,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54905389] [2024-12-01 13:13:29,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:13:29,399 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 [2024-12-01 13:13:29,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:13:29,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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) [2024-12-01 13:13:29,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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 [2024-12-01 13:13:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:13:29,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-01 13:13:29,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:13:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:13:29,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:13:29,888 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:13:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54905389] [2024-12-01 13:13:29,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54905389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:13:29,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:13:29,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 13:13:29,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147123849] [2024-12-01 13:13:29,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:13:29,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:13:29,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:13:29,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:13:29,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:13:29,906 INFO L87 Difference]: Start difference. First operand has 58 states, 48 states have (on average 1.5833333333333333) internal successors, (76), 51 states have internal predecessors, (76), 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) [2024-12-01 13:13:29,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:13:29,921 INFO L93 Difference]: Finished difference Result 111 states and 169 transitions. [2024-12-01 13:13:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:13:29,922 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 [2024-12-01 13:13:29,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:13:29,927 INFO L225 Difference]: With dead ends: 111 [2024-12-01 13:13:29,927 INFO L226 Difference]: Without dead ends: 49 [2024-12-01 13:13:29,930 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 [2024-12-01 13:13:29,933 INFO L435 NwaCegarLoop]: 79 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, 79 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 [2024-12-01 13:13:29,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:13:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-12-01 13:13:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-12-01 13:13:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 42 states have internal predecessors, (59), 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) [2024-12-01 13:13:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2024-12-01 13:13:29,966 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 7 [2024-12-01 13:13:29,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:13:29,966 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2024-12-01 13:13:29,966 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) [2024-12-01 13:13:29,966 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2024-12-01 13:13:29,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-01 13:13:29,967 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:13:29,967 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:13:29,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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 [2024-12-01 13:13:30,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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 [2024-12-01 13:13:30,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:13:30,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:13:30,168 INFO L85 PathProgramCache]: Analyzing trace with hash 78562400, now seen corresponding path program 1 times [2024-12-01 13:13:30,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:13:30,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35508171] [2024-12-01 13:13:30,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:13:30,169 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 [2024-12-01 13:13:30,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:13:30,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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) [2024-12-01 13:13:30,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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 [2024-12-01 13:13:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:13:38,378 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 13:14:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:14:43,107 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-01 13:14:43,107 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 13:14:43,109 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-12-01 13:14:43,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-12-01 13:14:43,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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)] Forceful destruction successful, exit code 0 [2024-12-01 13:14:43,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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 [2024-12-01 13:14:43,313 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-01 13:14:43,325 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 13:14:43,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:14:43 BoogieIcfgContainer [2024-12-01 13:14:43,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 13:14:43,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 13:14:43,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 13:14:43,328 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 13:14:43,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:13:29" (3/4) ... [2024-12-01 13:14:43,329 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-01 13:14:43,352 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-12-01 13:14:43,385 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-01 13:14:43,386 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-01 13:14:43,386 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 13:14:43,386 INFO L158 Benchmark]: Toolchain (without parser) took 79031.46ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 37.6MB in the end (delta: 31.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2024-12-01 13:14:43,387 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:14:43,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.04ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 53.9MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 13:14:43,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.33ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 52.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:14:43,387 INFO L158 Benchmark]: Boogie Preprocessor took 45.98ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 50.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:14:43,388 INFO L158 Benchmark]: RCFGBuilder took 4576.03ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 62.8MB in the end (delta: -12.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-12-01 13:14:43,388 INFO L158 Benchmark]: TraceAbstraction took 74021.27ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 41.7MB in the end (delta: 20.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-01 13:14:43,388 INFO L158 Benchmark]: Witness Printer took 58.12ms. Allocated memory is still 92.3MB. Free memory was 41.7MB in the beginning and 37.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:14:43,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.04ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 53.9MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.33ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 52.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.98ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 50.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 4576.03ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 62.8MB in the end (delta: -12.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 74021.27ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 41.7MB in the end (delta: 20.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 58.12ms. Allocated memory is still 92.3MB. Free memory was 41.7MB in the beginning and 37.6MB 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: [L320] COND TRUE __VERIFIER_nondet_int() [L321] 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, 58 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 74.0s, 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, 79 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, 79 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=58occurred 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, 8.6s 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! [2024-12-01 13:14:43,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67753625-65e0-413d-a003-fd4463b04b76/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