./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_int.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:39,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:39,163 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:32:39,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:39,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:39,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:39,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:39,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:39,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:39,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:39,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:39,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:39,227 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:39,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:39,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:39,229 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:32:39,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:32:39,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:32:39,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:39,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:39,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:39,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:39,232 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:32:39,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:39,233 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:39,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:39,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:39,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:39,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:39,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:39,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:39,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:39,237 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:32:39,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:32:39,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:39,238 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:39,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:39,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:39,239 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:39,239 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_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d [2023-11-06 22:32:39,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:39,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:39,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:39,559 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:39,560 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:39,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-06 22:32:42,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:42,976 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:42,977 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-06 22:32:42,985 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/data/66a1d58b2/532ac1c299f0459f91e3a713eb2910e7/FLAG01d91c502 [2023-11-06 22:32:43,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/data/66a1d58b2/532ac1c299f0459f91e3a713eb2910e7 [2023-11-06 22:32:43,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:43,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:43,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:43,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:43,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:43,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8e4793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43, skipping insertion in model container [2023-11-06 22:32:43,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,055 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:43,239 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_07438147-6cba-41bd-a2d0-69888e0c6a02/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-06 22:32:43,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:43,267 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:43,280 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_07438147-6cba-41bd-a2d0-69888e0c6a02/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-06 22:32:43,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:43,299 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:43,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43 WrapperNode [2023-11-06 22:32:43,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:43,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:43,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:43,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:43,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,346 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-06 22:32:43,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:43,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:43,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:43,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:43,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,365 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:43,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:43,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:43,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:43,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (1/1) ... [2023-11-06 22:32:43,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:43,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:43,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:43,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:32:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:43,535 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:43,537 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:43,630 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:43,635 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:43,636 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:32:43,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:43 BoogieIcfgContainer [2023-11-06 22:32:43,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:43,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:43,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:43,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:43,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:43" (1/3) ... [2023-11-06 22:32:43,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c34b461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:43, skipping insertion in model container [2023-11-06 22:32:43,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:43" (2/3) ... [2023-11-06 22:32:43,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c34b461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:43, skipping insertion in model container [2023-11-06 22:32:43,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:43" (3/3) ... [2023-11-06 22:32:43,646 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2023-11-06 22:32:43,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:43,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:32:43,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:32:43,705 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=LoopsAndPotentialCycles, 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;@290a446d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:32:43,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:32:43,709 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) [2023-11-06 22:32:43,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:32:43,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:43,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:32:43,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:43,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2023-11-06 22:32:43,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:43,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721317280] [2023-11-06 22:32:43,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:32:43,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:43,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721317280] [2023-11-06 22:32:43,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721317280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:43,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:43,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:43,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292484581] [2023-11-06 22:32:43,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:43,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:32:43,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:43,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:32:43,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:32:43,896 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) [2023-11-06 22:32:43,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:43,911 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-11-06 22:32:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:32:43,913 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 [2023-11-06 22:32:43,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:43,920 INFO L225 Difference]: With dead ends: 19 [2023-11-06 22:32:43,920 INFO L226 Difference]: Without dead ends: 7 [2023-11-06 22:32:43,922 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 [2023-11-06 22:32:43,926 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 [2023-11-06 22:32:43,927 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] [2023-11-06 22:32:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-11-06 22:32:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-11-06 22:32:43,957 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) [2023-11-06 22:32:43,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2023-11-06 22:32:43,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2023-11-06 22:32:43,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:43,960 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2023-11-06 22:32:43,960 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) [2023-11-06 22:32:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2023-11-06 22:32:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:32:43,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:43,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:32:43,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:32:43,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:43,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2023-11-06 22:32:43,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:43,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469171986] [2023-11-06 22:32:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:43,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:32:43,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:32:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:32:44,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:32:44,025 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:32:44,029 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:32:44,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:32:44,035 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:32:44,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:32:44,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:32:44 BoogieIcfgContainer [2023-11-06 22:32:44,058 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:32:44,059 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:32:44,059 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:32:44,059 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:32:44,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:43" (3/4) ... [2023-11-06 22:32:44,063 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:32:44,064 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:32:44,065 INFO L158 Benchmark]: Toolchain (without parser) took 1049.32ms. Allocated memory is still 153.1MB. Free memory was 123.7MB in the beginning and 77.6MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-06 22:32:44,065 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 153.1MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:44,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.47ms. Allocated memory is still 153.1MB. Free memory was 123.1MB in the beginning and 113.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:32:44,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.18ms. Allocated memory is still 153.1MB. Free memory was 113.2MB in the beginning and 111.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:32:44,067 INFO L158 Benchmark]: Boogie Preprocessor took 21.79ms. Allocated memory is still 153.1MB. Free memory was 111.5MB in the beginning and 110.6MB in the end (delta: 989.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:32:44,068 INFO L158 Benchmark]: RCFGBuilder took 266.57ms. Allocated memory is still 153.1MB. Free memory was 110.6MB in the beginning and 101.0MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:32:44,069 INFO L158 Benchmark]: TraceAbstraction took 418.48ms. Allocated memory is still 153.1MB. Free memory was 100.6MB in the beginning and 77.8MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:32:44,069 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 153.1MB. Free memory was 77.8MB in the beginning and 77.6MB in the end (delta: 281.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:44,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 153.1MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.47ms. Allocated memory is still 153.1MB. Free memory was 123.1MB in the beginning and 113.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.18ms. Allocated memory is still 153.1MB. Free memory was 113.2MB in the beginning and 111.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.79ms. Allocated memory is still 153.1MB. Free memory was 111.5MB in the beginning and 110.6MB in the end (delta: 989.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.57ms. Allocated memory is still 153.1MB. Free memory was 110.6MB in the beginning and 101.0MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 418.48ms. Allocated memory is still 153.1MB. Free memory was 100.6MB in the beginning and 77.8MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 153.1MB. Free memory was 77.8MB in the beginning and 77.6MB in the end (delta: 281.9kB). 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: 13]: 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 24, overapproximation of someBinaryArithmeticFLOAToperation at line 23. Possible FailurePath: [L17] int x; [L18] float y, z; [L20] x = __VERIFIER_nondet_int() [L21] CALL assume_abort_if_not(x >= -10 && x <= 10) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L21] RET assume_abort_if_not(x >= -10 && x <= 10) [L23] y = x*x - 2.f [L24] CALL __VERIFIER_assert(y != 0.f) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] 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: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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 [2023-11-06 22:32:44,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:46,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:46,831 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:32:46,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:46,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:46,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:46,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:46,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:46,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:46,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:46,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:46,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:46,898 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:46,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:46,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:46,901 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:32:46,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:32:46,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:46,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:46,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:46,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:46,904 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:32:46,904 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:32:46,905 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:32:46,905 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:32:46,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:46,906 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:46,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:46,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:46,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:46,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:46,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:46,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:46,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:46,910 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:32:46,910 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:32:46,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:46,911 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:46,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:46,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:46,912 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:32:46,913 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:46,913 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_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d [2023-11-06 22:32:47,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:47,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:47,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:47,369 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:47,370 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:47,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-06 22:32:50,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:50,754 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:50,755 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-06 22:32:50,763 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/data/db52afc54/0ee5b2af92404c63a95a239e2d65be56/FLAG88932dfdc [2023-11-06 22:32:50,782 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/data/db52afc54/0ee5b2af92404c63a95a239e2d65be56 [2023-11-06 22:32:50,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:50,790 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:50,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:50,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:50,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:50,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:50" (1/1) ... [2023-11-06 22:32:50,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51357f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:50, skipping insertion in model container [2023-11-06 22:32:50,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:50" (1/1) ... [2023-11-06 22:32:50,828 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:51,030 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_07438147-6cba-41bd-a2d0-69888e0c6a02/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-06 22:32:51,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:51,063 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:51,079 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_07438147-6cba-41bd-a2d0-69888e0c6a02/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-06 22:32:51,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:51,106 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:51,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51 WrapperNode [2023-11-06 22:32:51,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:51,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:51,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:51,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:51,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,152 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-06 22:32:51,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:51,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:51,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:51,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:51,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:51,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:51,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:51,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:51,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (1/1) ... [2023-11-06 22:32:51,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:51,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:51,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:51,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:32:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:51,422 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:51,425 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:53,177 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:53,183 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:53,183 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:32:53,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:53 BoogieIcfgContainer [2023-11-06 22:32:53,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:53,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:53,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:53,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:53,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:50" (1/3) ... [2023-11-06 22:32:53,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d20ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:53, skipping insertion in model container [2023-11-06 22:32:53,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:51" (2/3) ... [2023-11-06 22:32:53,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d20ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:53, skipping insertion in model container [2023-11-06 22:32:53,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:53" (3/3) ... [2023-11-06 22:32:53,194 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2023-11-06 22:32:53,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:53,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:32:53,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:32:53,284 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=LoopsAndPotentialCycles, 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;@3ee06576, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:32:53,284 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:32:53,288 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) [2023-11-06 22:32:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:32:53,293 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:53,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:32:53,295 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:53,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:53,301 INFO L85 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2023-11-06 22:32:53,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:32:53,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266055672] [2023-11-06 22:32:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:53,317 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 [2023-11-06 22:32:53,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:32:53,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:32:53,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:32:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:53,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:32:53,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:32:53,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:53,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:32:53,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266055672] [2023-11-06 22:32:53,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266055672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:53,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:53,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:53,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814622378] [2023-11-06 22:32:53,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:53,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:32:53,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:32:53,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:32:53,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:32:53,555 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) [2023-11-06 22:32:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:53,570 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-11-06 22:32:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:32:53,572 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 [2023-11-06 22:32:53,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:53,581 INFO L225 Difference]: With dead ends: 19 [2023-11-06 22:32:53,582 INFO L226 Difference]: Without dead ends: 7 [2023-11-06 22:32:53,585 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 [2023-11-06 22:32:53,590 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 [2023-11-06 22:32:53,593 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] [2023-11-06 22:32:53,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-11-06 22:32:53,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-11-06 22:32:53,621 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) [2023-11-06 22:32:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2023-11-06 22:32:53,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2023-11-06 22:32:53,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:53,624 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2023-11-06 22:32:53,624 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) [2023-11-06 22:32:53,625 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2023-11-06 22:32:53,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:32:53,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:53,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:32:53,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:53,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:32:53,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:53,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:53,841 INFO L85 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2023-11-06 22:32:53,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:32:53,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83039317] [2023-11-06 22:32:53,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:53,842 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 [2023-11-06 22:32:53,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:32:53,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:32:53,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:32:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:54,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:32:54,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:04,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:33:04,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:33:04,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83039317] [2023-11-06 22:33:04,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83039317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:04,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:04,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:33:04,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496545066] [2023-11-06 22:33:04,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:04,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:33:04,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:33:04,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:33:04,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:33:04,558 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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) [2023-11-06 22:33:08,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:08,022 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2023-11-06 22:33:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:33:08,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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 [2023-11-06 22:33:08,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:33:08,022 INFO L225 Difference]: With dead ends: 7 [2023-11-06 22:33:08,022 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:33:08,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:33:08,024 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:33:08,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:33:08,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:33:08,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:33:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:33:08,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2023-11-06 22:33:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:33:08,027 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:33:08,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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) [2023-11-06 22:33:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:33:08,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:33:08,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:33:08,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:33:08,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:33:08,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:33:08,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:33:08,243 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:33:08,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:33:08,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-11-06 22:33:08,243 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-06 22:33:08,243 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-06 22:33:08,244 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-06 22:33:08,244 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2023-11-06 22:33:08,244 INFO L902 garLoopResultBuilder]: At program point L13-3(line 13) the Hoare annotation is: true [2023-11-06 22:33:08,244 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:33:08,245 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 15 27) the Hoare annotation is: true [2023-11-06 22:33:08,248 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:33:08,250 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:33:08,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:33:08 BoogieIcfgContainer [2023-11-06 22:33:08,257 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:33:08,257 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:33:08,258 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:33:08,258 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:33:08,259 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:53" (3/4) ... [2023-11-06 22:33:08,263 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:33:08,271 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-06 22:33:08,271 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:33:08,271 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:33:08,272 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:33:08,313 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:33:08,313 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:33:08,314 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:33:08,314 INFO L158 Benchmark]: Toolchain (without parser) took 17523.97ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 52.1MB in the beginning and 63.9MB in the end (delta: -11.8MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2023-11-06 22:33:08,315 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:33:08,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.41ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 40.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:33:08,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.91ms. Allocated memory is still 75.5MB. Free memory was 40.9MB in the beginning and 39.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:33:08,316 INFO L158 Benchmark]: Boogie Preprocessor took 44.09ms. Allocated memory is still 75.5MB. Free memory was 39.3MB in the beginning and 38.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:33:08,317 INFO L158 Benchmark]: RCFGBuilder took 1985.99ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 38.0MB in the beginning and 71.7MB in the end (delta: -33.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:33:08,317 INFO L158 Benchmark]: TraceAbstraction took 15069.45ms. Allocated memory is still 100.7MB. Free memory was 71.0MB in the beginning and 66.6MB in the end (delta: 4.4MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-11-06 22:33:08,318 INFO L158 Benchmark]: Witness Printer took 56.26ms. Allocated memory is still 100.7MB. Free memory was 66.6MB in the beginning and 63.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:33:08,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.41ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 40.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.91ms. Allocated memory is still 75.5MB. Free memory was 40.9MB in the beginning and 39.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.09ms. Allocated memory is still 75.5MB. Free memory was 39.3MB in the beginning and 38.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1985.99ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 38.0MB in the beginning and 71.7MB in the end (delta: -33.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15069.45ms. Allocated memory is still 100.7MB. Free memory was 71.0MB in the beginning and 66.6MB in the end (delta: 4.4MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 56.26ms. Allocated memory is still 100.7MB. Free memory was 66.6MB in the beginning and 63.9MB in the end (delta: 2.7MB). 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 - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 1 QuantifiedInterpolants, 36 SizeOfPredicates, 5 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-06 22:33:08,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07438147-6cba-41bd-a2d0-69888e0c6a02/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE