./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/float_int_inv_square.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_int_inv_square.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu --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 a3f1488b0e5756e8d9e219e50ec38e84e8e4fac76b2e3a5e1785d4e14d4111d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:22,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:22,337 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:58:22,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:22,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:22,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:22,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:22,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:22,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:22,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:22,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:22,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:22,398 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:22,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:22,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:22,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:22,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:22,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:22,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:22,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:22,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:22,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:22,405 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:22,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:22,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:22,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:22,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:22,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:22,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:22,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:22,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:22,411 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:22,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:22,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:22,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:22,412 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:22,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:22,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:22,413 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:22,413 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3f1488b0e5756e8d9e219e50ec38e84e8e4fac76b2e3a5e1785d4e14d4111d8 [2023-11-19 07:58:22,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:22,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:22,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:22,756 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:22,757 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:22,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/float-benchs/float_int_inv_square.c [2023-11-19 07:58:25,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:26,165 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:26,166 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/sv-benchmarks/c/float-benchs/float_int_inv_square.c [2023-11-19 07:58:26,174 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/data/a0eddfb10/60ccdeb9e74f4a77bdc2e391db2dfa28/FLAG09e1e13e8 [2023-11-19 07:58:26,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/data/a0eddfb10/60ccdeb9e74f4a77bdc2e391db2dfa28 [2023-11-19 07:58:26,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:26,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:26,199 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:26,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:26,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:26,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519ef002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26, skipping insertion in model container [2023-11-19 07:58:26,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,238 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:26,386 WARN L240 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_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/sv-benchmarks/c/float-benchs/float_int_inv_square.c[488,501] [2023-11-19 07:58:26,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:26,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:26,424 WARN L240 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_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/sv-benchmarks/c/float-benchs/float_int_inv_square.c[488,501] [2023-11-19 07:58:26,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:26,443 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:26,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26 WrapperNode [2023-11-19 07:58:26,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:26,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:26,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:26,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:26,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,487 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-19 07:58:26,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:26,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:26,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:26,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:26,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:26,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:26,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:26,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:26,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (1/1) ... [2023-11-19 07:58:26,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:26,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:26,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:26,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:26,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:26,660 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:26,662 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:26,809 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:26,821 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:26,822 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:58:26,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:26 BoogieIcfgContainer [2023-11-19 07:58:26,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:26,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:26,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:26,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:26,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:26" (1/3) ... [2023-11-19 07:58:26,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3038c84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:26, skipping insertion in model container [2023-11-19 07:58:26,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:26" (2/3) ... [2023-11-19 07:58:26,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3038c84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:26, skipping insertion in model container [2023-11-19 07:58:26,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:26" (3/3) ... [2023-11-19 07:58:26,840 INFO L112 eAbstractionObserver]: Analyzing ICFG float_int_inv_square.c [2023-11-19 07:58:26,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:26,866 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:58:26,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:26,930 INFO L357 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, mHoare=true, 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;@4bede27e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:26,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:58:26,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:26,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:58:26,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:26,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:58:26,947 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:26,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:26,958 INFO L85 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2023-11-19 07:58:26,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:26,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807857716] [2023-11-19 07:58:26,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:26,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:27,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:27,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807857716] [2023-11-19 07:58:27,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807857716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:27,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:27,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:27,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177795130] [2023-11-19 07:58:27,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:27,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:58:27,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:27,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:58:27,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:58:27,191 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-19 07:58:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:27,201 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-11-19 07:58:27,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:58:27,202 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-19 07:58:27,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:27,209 INFO L225 Difference]: With dead ends: 19 [2023-11-19 07:58:27,209 INFO L226 Difference]: Without dead ends: 7 [2023-11-19 07:58:27,212 INFO L412 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 [2023-11-19 07:58:27,215 INFO L413 NwaCegarLoop]: 10 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, 10 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 [2023-11-19 07:58:27,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:27,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-11-19 07:58:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-11-19 07:58:27,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2023-11-19 07:58:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2023-11-19 07:58:27,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2023-11-19 07:58:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:27,242 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2023-11-19 07:58:27,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-19 07:58:27,242 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2023-11-19 07:58:27,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:58:27,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:27,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:58:27,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:58:27,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:27,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:27,244 INFO L85 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2023-11-19 07:58:27,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:27,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052703472] [2023-11-19 07:58:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:27,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:27,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:27,299 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:27,300 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:58:27,302 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:58:27,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:58:27,308 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:58:27,312 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:58:27,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:58:27 BoogieIcfgContainer [2023-11-19 07:58:27,341 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:58:27,342 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:58:27,342 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:58:27,342 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:58:27,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:26" (3/4) ... [2023-11-19 07:58:27,345 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:58:27,347 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:58:27,348 INFO L158 Benchmark]: Toolchain (without parser) took 1149.98ms. Allocated memory is still 169.9MB. Free memory was 127.6MB in the beginning and 133.1MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:27,349 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:27,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.10ms. Allocated memory is still 169.9MB. Free memory was 127.2MB in the beginning and 116.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:58:27,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.78ms. Allocated memory is still 169.9MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:58:27,352 INFO L158 Benchmark]: Boogie Preprocessor took 32.95ms. Allocated memory is still 169.9MB. Free memory was 115.3MB in the beginning and 114.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:27,353 INFO L158 Benchmark]: RCFGBuilder took 303.47ms. Allocated memory is still 169.9MB. Free memory was 114.3MB in the beginning and 105.2MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:58:27,353 INFO L158 Benchmark]: TraceAbstraction took 510.84ms. Allocated memory is still 169.9MB. Free memory was 104.5MB in the beginning and 133.1MB in the end (delta: -28.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:27,354 INFO L158 Benchmark]: Witness Printer took 5.39ms. Allocated memory is still 169.9MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:27,356 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 113.2MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.10ms. Allocated memory is still 169.9MB. Free memory was 127.2MB in the beginning and 116.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.78ms. Allocated memory is still 169.9MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.95ms. Allocated memory is still 169.9MB. Free memory was 115.3MB in the beginning and 114.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 303.47ms. Allocated memory is still 169.9MB. Free memory was 114.3MB in the beginning and 105.2MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 510.84ms. Allocated memory is still 169.9MB. Free memory was 104.5MB in the beginning and 133.1MB in the end (delta: -28.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.39ms. Allocated memory is still 169.9MB. Free memory is still 133.1MB. 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 - UnprovableResult [Line: 11]: 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 22, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L15] int x; [L16] float y, z; [L18] x = __VERIFIER_nondet_int() [L19] CALL assume_abort_if_not(x >= -10 && x <= 10) [L9] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L19] RET assume_abort_if_not(x >= -10 && x <= 10) [L21] y = x*x - 4.f [L22] CALL __VERIFIER_assert(y != 0.f) [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L11] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 10 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, 10 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=11occurred 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:58:27,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_int_inv_square.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu --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 a3f1488b0e5756e8d9e219e50ec38e84e8e4fac76b2e3a5e1785d4e14d4111d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:30,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:30,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:58:30,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:30,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:30,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:30,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:30,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:30,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:30,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:30,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:30,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:30,426 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:30,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:30,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:30,430 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:30,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:30,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:30,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:30,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:30,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:30,433 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:58:30,434 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:58:30,434 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:58:30,435 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:30,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:30,436 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:30,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:30,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:30,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:30,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:30,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:30,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:30,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:30,440 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:58:30,441 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:58:30,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:30,442 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:30,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:30,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:30,443 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:58:30,444 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:30,444 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3f1488b0e5756e8d9e219e50ec38e84e8e4fac76b2e3a5e1785d4e14d4111d8 [2023-11-19 07:58:30,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:30,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:30,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:30,939 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:30,939 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:30,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/float-benchs/float_int_inv_square.c [2023-11-19 07:58:34,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:34,620 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:34,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/sv-benchmarks/c/float-benchs/float_int_inv_square.c [2023-11-19 07:58:34,631 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/data/145409b77/ecd853208d9247a394edd9b449b29104/FLAG940b0470b [2023-11-19 07:58:34,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/data/145409b77/ecd853208d9247a394edd9b449b29104 [2023-11-19 07:58:34,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:34,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:34,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:34,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:34,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:34,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:34,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77593a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34, skipping insertion in model container [2023-11-19 07:58:34,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:34,686 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:34,868 WARN L240 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_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/sv-benchmarks/c/float-benchs/float_int_inv_square.c[488,501] [2023-11-19 07:58:34,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:34,908 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:34,927 WARN L240 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_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/sv-benchmarks/c/float-benchs/float_int_inv_square.c[488,501] [2023-11-19 07:58:34,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:34,957 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:34,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34 WrapperNode [2023-11-19 07:58:34,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:34,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:34,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:34,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:34,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:34,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,004 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-19 07:58:35,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:35,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:35,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:35,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:35,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:35,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:35,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:35,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:35,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (1/1) ... [2023-11-19 07:58:35,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:35,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:35,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:35,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:58:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:35,285 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:35,288 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:36,722 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:36,728 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:36,729 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:58:36,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:36 BoogieIcfgContainer [2023-11-19 07:58:36,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:36,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:36,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:36,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:36,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:34" (1/3) ... [2023-11-19 07:58:36,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1d5df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:36, skipping insertion in model container [2023-11-19 07:58:36,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:34" (2/3) ... [2023-11-19 07:58:36,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1d5df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:36, skipping insertion in model container [2023-11-19 07:58:36,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:36" (3/3) ... [2023-11-19 07:58:36,745 INFO L112 eAbstractionObserver]: Analyzing ICFG float_int_inv_square.c [2023-11-19 07:58:36,763 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:36,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:58:36,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:36,814 INFO L357 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, mHoare=true, 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;@4d6b8263, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:36,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:58:36,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:58:36,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:36,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:58:36,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:36,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2023-11-19 07:58:36,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:58:36,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757027596] [2023-11-19 07:58:36,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:36,847 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 [2023-11-19 07:58:36,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:58:36,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:58:36,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:58:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:58:37,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:37,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:37,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:58:37,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757027596] [2023-11-19 07:58:37,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757027596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:37,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:37,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:37,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014036724] [2023-11-19 07:58:37,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:37,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:58:37,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:58:37,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:58:37,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:58:37,086 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-19 07:58:37,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:37,099 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-11-19 07:58:37,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:58:37,102 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-19 07:58:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:37,110 INFO L225 Difference]: With dead ends: 19 [2023-11-19 07:58:37,110 INFO L226 Difference]: Without dead ends: 7 [2023-11-19 07:58:37,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:58:37,120 INFO L413 NwaCegarLoop]: 10 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, 10 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 [2023-11-19 07:58:37,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:37,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-11-19 07:58:37,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-11-19 07:58:37,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2023-11-19 07:58:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2023-11-19 07:58:37,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2023-11-19 07:58:37,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:37,155 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2023-11-19 07:58:37,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-19 07:58:37,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2023-11-19 07:58:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:58:37,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:37,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:58:37,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:58:37,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:58:37,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:37,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:37,362 INFO L85 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2023-11-19 07:58:37,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:58:37,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578724825] [2023-11-19 07:58:37,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:37,363 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 [2023-11-19 07:58:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:58:37,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:58:37,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:58:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:37,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:37,560 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-19 07:58:37,560 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:58:37,562 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:58:37,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:58:37,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:58:37,768 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:58:37,772 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:58:37,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:58:37 BoogieIcfgContainer [2023-11-19 07:58:37,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:58:37,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:58:37,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:58:37,790 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:58:37,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:36" (3/4) ... [2023-11-19 07:58:37,792 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:58:37,829 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:58:37,829 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:58:37,830 INFO L158 Benchmark]: Toolchain (without parser) took 3180.89ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 64.7MB in the end (delta: 1.8MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,830 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 134.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:37,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.88ms. Allocated memory is still 90.2MB. Free memory was 66.2MB in the beginning and 55.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.52ms. Allocated memory is still 90.2MB. Free memory was 55.4MB in the beginning and 54.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,832 INFO L158 Benchmark]: Boogie Preprocessor took 63.42ms. Allocated memory is still 90.2MB. Free memory was 54.0MB in the beginning and 52.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:37,833 INFO L158 Benchmark]: RCFGBuilder took 1662.09ms. Allocated memory is still 90.2MB. Free memory was 52.6MB in the beginning and 64.9MB in the end (delta: -12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,834 INFO L158 Benchmark]: TraceAbstraction took 1052.98ms. Allocated memory is still 90.2MB. Free memory was 64.3MB in the beginning and 66.3MB in the end (delta: -2.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,834 INFO L158 Benchmark]: Witness Printer took 39.09ms. Allocated memory is still 90.2MB. Free memory was 66.3MB in the beginning and 64.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,837 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 134.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.88ms. Allocated memory is still 90.2MB. Free memory was 66.2MB in the beginning and 55.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.52ms. Allocated memory is still 90.2MB. Free memory was 55.4MB in the beginning and 54.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.42ms. Allocated memory is still 90.2MB. Free memory was 54.0MB in the beginning and 52.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1662.09ms. Allocated memory is still 90.2MB. Free memory was 52.6MB in the beginning and 64.9MB in the end (delta: -12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1052.98ms. Allocated memory is still 90.2MB. Free memory was 64.3MB in the beginning and 66.3MB in the end (delta: -2.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Witness Printer took 39.09ms. Allocated memory is still 90.2MB. Free memory was 66.3MB in the beginning and 64.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. 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: 11]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] int x; [L16] float y, z; [L18] x = __VERIFIER_nondet_int() [L19] CALL assume_abort_if_not(x >= -10 && x <= 10) [L9] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L19] RET assume_abort_if_not(x >= -10 && x <= 10) [L21] y = x*x - 4.f [L22] CALL __VERIFIER_assert(y != 0.f) [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L11] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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, 10 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, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:58:37,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6ed35a-f775-45ef-9f61-c0ad440f5e7e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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