./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd --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 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:22:49,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:22:50,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:22:50,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:22:50,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:22:50,151 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:22:50,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:22:50,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:22:50,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:22:50,155 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:22:50,155 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:22:50,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:22:50,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:22:50,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:22:50,157 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:22:50,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:22:50,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:22:50,158 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:22:50,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:22:50,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:22:50,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:22:50,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:22:50,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:22:50,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:22:50,159 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:22:50,159 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:22:50,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:22:50,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:22:50,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:22:50,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:22:50,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:22:50,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:22:50,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:22:50,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:22:50,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:22:50,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:22:50,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:22:50,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:22:50,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:22:50,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:22:50,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:22:50,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:22:50,162 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd 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 -> 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 [2024-11-13 15:22:50,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:22:50,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:22:50,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:22:50,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:22:50,509 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:22:50,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c Unable to find full path for "g++" [2024-11-13 15:22:52,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:22:52,924 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:22:52,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2024-11-13 15:22:52,942 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/data/f3498efe4/4783fa46fd3a437bbd5c8cc6d9cbf561/FLAG720767c77 [2024-11-13 15:22:52,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/data/f3498efe4/4783fa46fd3a437bbd5c8cc6d9cbf561 [2024-11-13 15:22:52,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:22:52,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:22:52,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:22:52,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:22:52,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:22:52,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:22:52" (1/1) ... [2024-11-13 15:22:52,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb22341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:52, skipping insertion in model container [2024-11-13 15:22:52,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:22:52" (1/1) ... [2024-11-13 15:22:53,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:22:53,198 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[1998,2011] [2024-11-13 15:22:53,203 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[2367,2380] [2024-11-13 15:22:53,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:22:53,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:22:53,283 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[1998,2011] [2024-11-13 15:22:53,285 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[2367,2380] [2024-11-13 15:22:53,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:22:53,341 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:22:53,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53 WrapperNode [2024-11-13 15:22:53,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:22:53,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:22:53,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:22:53,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:22:53,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,384 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 210 [2024-11-13 15:22:53,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:22:53,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:22:53,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:22:53,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:22:53,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,426 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:22:53,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,462 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:22:53,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:22:53,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:22:53,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:22:53,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (1/1) ... [2024-11-13 15:22:53,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:22:53,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:53,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:22:53,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:22:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:22:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-13 15:22:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-13 15:22:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:22:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:22:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:22:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:22:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:22:53,646 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:22:53,648 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:22:54,275 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-13 15:22:54,275 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:22:54,297 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:22:54,300 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:22:54,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:22:54 BoogieIcfgContainer [2024-11-13 15:22:54,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:22:54,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:22:54,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:22:54,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:22:54,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:22:52" (1/3) ... [2024-11-13 15:22:54,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a61b775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:22:54, skipping insertion in model container [2024-11-13 15:22:54,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:53" (2/3) ... [2024-11-13 15:22:54,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a61b775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:22:54, skipping insertion in model container [2024-11-13 15:22:54,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:22:54" (3/3) ... [2024-11-13 15:22:54,318 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_1-3a.c.cil.c [2024-11-13 15:22:54,339 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:22:54,342 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG square_5+soft_float_1-3a.c.cil.c that has 3 procedures, 105 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 15:22:54,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:22:54,458 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;@17edd323, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:22:54,459 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:22:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 91 states have (on average 1.5714285714285714) internal successors, (143), 95 states have internal predecessors, (143), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 15:22:54,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:22:54,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:22:54,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:54,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:22:54,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:54,475 INFO L85 PathProgramCache]: Analyzing trace with hash -929888677, now seen corresponding path program 1 times [2024-11-13 15:22:54,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:54,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511210456] [2024-11-13 15:22:54,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:54,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:22:54,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:22:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:22:54,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:22:54,637 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:22:54,642 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 15:22:54,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 15:22:54,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:22:54,654 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 15:22:54,668 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:22:54,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:22:54 BoogieIcfgContainer [2024-11-13 15:22:54,675 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:22:54,676 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:22:54,676 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:22:54,678 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:22:54,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:22:54" (3/4) ... [2024-11-13 15:22:54,682 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:22:54,683 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:22:54,684 INFO L158 Benchmark]: Toolchain (without parser) took 1719.66ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 89.3MB in the end (delta: 3.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-11-13 15:22:54,685 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:22:54,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.18ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.3MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:22:54,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.83ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 75.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:22:54,689 INFO L158 Benchmark]: Boogie Preprocessor took 87.27ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 73.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:22:54,689 INFO L158 Benchmark]: RCFGBuilder took 827.88ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 50.0MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:22:54,690 INFO L158 Benchmark]: TraceAbstraction took 371.89ms. Allocated memory is still 117.4MB. Free memory was 49.4MB in the beginning and 89.3MB in the end (delta: -39.9MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-13 15:22:54,690 INFO L158 Benchmark]: Witness Printer took 6.77ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:22:54,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.18ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.3MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.83ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 75.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 87.27ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 73.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 827.88ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 50.0MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 371.89ms. Allocated memory is still 117.4MB. Free memory was 49.4MB in the beginning and 89.3MB in the end (delta: -39.9MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 6.77ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 89.3MB 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: [L402] COND TRUE __VERIFIER_nondet_int() [L403] 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 < 1.3985f) [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, 105 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 15:22:54,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd --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 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:22:57,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:22:57,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:22:57,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:22:57,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:22:57,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:22:57,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:22:57,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:22:57,885 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:22:57,886 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:22:57,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:22:57,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:22:57,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:22:57,888 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:22:57,888 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:22:57,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:22:57,889 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:22:57,889 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:22:57,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:22:57,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:22:57,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:22:57,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:22:57,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:22:57,890 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:22:57,890 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:22:57,890 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:22:57,890 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:22:57,890 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:22:57,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:22:57,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:22:57,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:22:57,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:22:57,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:22:57,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:22:57,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:22:57,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:22:57,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:22:57,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:22:57,892 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:22:57,892 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:22:57,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:22:57,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:22:57,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:22:57,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:22:57,892 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd 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 -> 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 [2024-11-13 15:22:58,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:22:58,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:22:58,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:22:58,263 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:22:58,263 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:22:58,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c Unable to find full path for "g++" [2024-11-13 15:23:00,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:23:00,779 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:23:00,780 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2024-11-13 15:23:00,795 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/data/af3269e37/5f17293aa94e45beb6194f2be3b32084/FLAG7199d186b [2024-11-13 15:23:00,836 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/data/af3269e37/5f17293aa94e45beb6194f2be3b32084 [2024-11-13 15:23:00,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:23:00,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:23:00,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:23:00,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:23:00,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:23:00,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:23:00" (1/1) ... [2024-11-13 15:23:00,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10413e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:00, skipping insertion in model container [2024-11-13 15:23:00,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:23:00" (1/1) ... [2024-11-13 15:23:00,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:23:01,125 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[1998,2011] [2024-11-13 15:23:01,134 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[2367,2380] [2024-11-13 15:23:01,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:23:01,247 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:23:01,267 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[1998,2011] [2024-11-13 15:23:01,273 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_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[2367,2380] [2024-11-13 15:23:01,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:23:01,371 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:23:01,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01 WrapperNode [2024-11-13 15:23:01,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:23:01,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:23:01,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:23:01,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:23:01,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,440 INFO L138 Inliner]: procedures = 28, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 167 [2024-11-13 15:23:01,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:23:01,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:23:01,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:23:01,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:23:01,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,461 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,486 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:23:01,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:23:01,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:23:01,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:23:01,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:23:01,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (1/1) ... [2024-11-13 15:23:01,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:23:01,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:23:01,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:23:01,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:23:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:23:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:23:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-13 15:23:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-13 15:23:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:23:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:23:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:23:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:23:01,736 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:23:01,740 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:23:06,488 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-11-13 15:23:06,489 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:23:06,505 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:23:06,508 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:23:06,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:23:06 BoogieIcfgContainer [2024-11-13 15:23:06,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:23:06,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:23:06,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:23:06,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:23:06,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:23:00" (1/3) ... [2024-11-13 15:23:06,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638a2012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:23:06, skipping insertion in model container [2024-11-13 15:23:06,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:01" (2/3) ... [2024-11-13 15:23:06,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638a2012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:23:06, skipping insertion in model container [2024-11-13 15:23:06,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:23:06" (3/3) ... [2024-11-13 15:23:06,527 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_1-3a.c.cil.c [2024-11-13 15:23:06,548 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:23:06,551 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG square_5+soft_float_1-3a.c.cil.c that has 3 procedures, 81 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 15:23:06,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:23:06,640 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;@1be6347c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:23:06,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:23:06,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 15:23:06,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:23:06,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:23:06,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:23:06,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:23:06,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:06,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1912677092, now seen corresponding path program 1 times [2024-11-13 15:23:06,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:23:06,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206302216] [2024-11-13 15:23:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:06,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:23:06,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:23:06,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:23:06,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 15:23:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:23:07,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:23:07,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:23:07,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:23:07,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:23:07,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:23:07,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206302216] [2024-11-13 15:23:07,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206302216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:23:07,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:23:07,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:23:07,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516074837] [2024-11-13 15:23:07,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:23:07,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:23:07,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:23:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:23:07,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:23:07,387 INFO L87 Difference]: Start difference. First operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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) [2024-11-13 15:23:07,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:23:07,416 INFO L93 Difference]: Finished difference Result 157 states and 249 transitions. [2024-11-13 15:23:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:23:07,418 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 [2024-11-13 15:23:07,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:23:07,426 INFO L225 Difference]: With dead ends: 157 [2024-11-13 15:23:07,426 INFO L226 Difference]: Without dead ends: 74 [2024-11-13 15:23:07,429 INFO L431 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 [2024-11-13 15:23:07,433 INFO L432 NwaCegarLoop]: 117 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, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:23:07,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:23:07,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-13 15:23:07,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-13 15:23:07,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 64 states have internal predecessors, (91), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 15:23:07,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2024-11-13 15:23:07,470 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 7 [2024-11-13 15:23:07,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:23:07,470 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2024-11-13 15:23:07,470 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) [2024-11-13 15:23:07,470 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2024-11-13 15:23:07,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:23:07,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:23:07,471 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:23:07,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 15:23:07,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:23:07,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:23:07,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:07,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1912736674, now seen corresponding path program 1 times [2024-11-13 15:23:07,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:23:07,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329853615] [2024-11-13 15:23:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:07,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:23:07,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:23:07,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:23:07,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf1c4076-efbf-4b7a-ba66-7a819a86b05b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 15:38:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:15,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 15:38:15,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:38:24,289 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)