./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 e42e84729022b725ebcfce66d0ece68757a1a9b385230356b4d45a24fc6b4ef2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:08:35,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:08:35,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:08:35,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:08:35,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:08:36,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:08:36,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:08:36,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:08:36,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:08:36,016 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:08:36,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:08:36,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:08:36,018 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:08:36,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:08:36,020 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:08:36,020 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:08:36,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:08:36,021 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:08:36,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:08:36,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:08:36,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:08:36,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:08:36,024 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:08:36,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:08:36,025 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:08:36,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:08:36,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:08:36,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:08:36,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:36,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:08:36,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:08:36,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:08:36,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:08:36,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:08:36,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:08:36,031 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:08:36,031 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:08:36,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:08:36,032 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:08:36,032 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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e42e84729022b725ebcfce66d0ece68757a1a9b385230356b4d45a24fc6b4ef2 [2023-11-06 23:08:36,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:08:36,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:08:36,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:08:36,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:08:36,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:08:36,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-benchs/filter2.c [2023-11-06 23:08:39,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:08:39,834 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:08:39,835 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/sv-benchmarks/c/float-benchs/filter2.c [2023-11-06 23:08:39,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/data/622e1a8e0/1829c703224c4da9aeb8b3305eba5220/FLAG5ec4cab56 [2023-11-06 23:08:39,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/data/622e1a8e0/1829c703224c4da9aeb8b3305eba5220 [2023-11-06 23:08:39,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:08:39,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:08:39,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:39,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:08:39,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:08:39,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:39" (1/1) ... [2023-11-06 23:08:39,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19926c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:39, skipping insertion in model container [2023-11-06 23:08:39,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:39" (1/1) ... [2023-11-06 23:08:39,913 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:08:40,102 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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/sv-benchmarks/c/float-benchs/filter2.c[652,665] [2023-11-06 23:08:40,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:40,129 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:08:40,146 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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/sv-benchmarks/c/float-benchs/filter2.c[652,665] [2023-11-06 23:08:40,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:40,181 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:08:40,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40 WrapperNode [2023-11-06 23:08:40,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:40,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:40,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:08:40,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:08:40,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,215 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2023-11-06 23:08:40,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:40,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:08:40,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:08:40,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:08:40,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:08:40,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:08:40,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:08:40,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:08:40,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (1/1) ... [2023-11-06 23:08:40,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:40,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:40,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:08:40,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:08:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:08:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 23:08:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 23:08:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:08:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:08:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:08:40,378 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:08:40,380 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:08:40,510 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:08:40,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:08:40,517 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:08:40,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:40 BoogieIcfgContainer [2023-11-06 23:08:40,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:08:40,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:08:40,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:08:40,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:08:40,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:08:39" (1/3) ... [2023-11-06 23:08:40,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe6c505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:40, skipping insertion in model container [2023-11-06 23:08:40,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:40" (2/3) ... [2023-11-06 23:08:40,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe6c505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:40, skipping insertion in model container [2023-11-06 23:08:40,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:40" (3/3) ... [2023-11-06 23:08:40,530 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2.c [2023-11-06 23:08:40,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:08:40,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:08:40,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:40,611 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;@6720c10d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:40,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:08:40,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 23:08:40,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 23:08:40,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:40,626 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:40,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:40,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:40,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1602622425, now seen corresponding path program 1 times [2023-11-06 23:08:40,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:40,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791760548] [2023-11-06 23:08:40,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:40,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:40,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 23:08:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:08:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:40,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:08:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 23:08:40,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:40,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791760548] [2023-11-06 23:08:40,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791760548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:40,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:40,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:08:40,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392647957] [2023-11-06 23:08:40,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:40,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:08:40,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:08:40,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:08:40,868 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 23:08:40,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:40,889 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2023-11-06 23:08:40,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:08:40,891 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2023-11-06 23:08:40,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:40,899 INFO L225 Difference]: With dead ends: 39 [2023-11-06 23:08:40,900 INFO L226 Difference]: Without dead ends: 17 [2023-11-06 23:08:40,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 23:08:40,907 INFO L413 NwaCegarLoop]: 23 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, 23 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 23:08:40,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:08:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-06 23:08:40,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-06 23:08:40,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 23:08:40,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2023-11-06 23:08:40,951 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 22 [2023-11-06 23:08:40,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:40,952 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2023-11-06 23:08:40,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 23:08:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-06 23:08:40,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 23:08:40,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:40,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:40,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:08:40,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:40,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash 168652453, now seen corresponding path program 1 times [2023-11-06 23:08:40,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:40,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760595251] [2023-11-06 23:08:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:40,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:08:40,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:08:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:08:41,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:08:41,050 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:08:41,052 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 23:08:41,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:08:41,058 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 23:08:41,062 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:08:41,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:08:41 BoogieIcfgContainer [2023-11-06 23:08:41,095 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:08:41,095 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:08:41,096 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:08:41,096 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:08:41,097 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:40" (3/4) ... [2023-11-06 23:08:41,099 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:08:41,100 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:08:41,101 INFO L158 Benchmark]: Toolchain (without parser) took 1230.13ms. Allocated memory is still 155.2MB. Free memory was 106.9MB in the beginning and 54.5MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-06 23:08:41,102 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:08:41,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.51ms. Allocated memory is still 155.2MB. Free memory was 106.6MB in the beginning and 95.9MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:08:41,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.68ms. Allocated memory is still 155.2MB. Free memory was 95.9MB in the beginning and 94.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:08:41,108 INFO L158 Benchmark]: Boogie Preprocessor took 20.57ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 93.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:08:41,111 INFO L158 Benchmark]: RCFGBuilder took 281.53ms. Allocated memory is still 155.2MB. Free memory was 93.1MB in the beginning and 82.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:08:41,111 INFO L158 Benchmark]: TraceAbstraction took 573.27ms. Allocated memory is still 155.2MB. Free memory was 82.4MB in the beginning and 54.8MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-06 23:08:41,112 INFO L158 Benchmark]: Witness Printer took 5.19ms. Allocated memory is still 155.2MB. Free memory was 54.8MB in the beginning and 54.5MB in the end (delta: 294.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:08:41,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.51ms. Allocated memory is still 155.2MB. Free memory was 106.6MB in the beginning and 95.9MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.68ms. Allocated memory is still 155.2MB. Free memory was 95.9MB in the beginning and 94.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.57ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 93.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 281.53ms. Allocated memory is still 155.2MB. Free memory was 93.1MB in the beginning and 82.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 573.27ms. Allocated memory is still 155.2MB. Free memory was 82.4MB in the beginning and 54.8MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 5.19ms. Allocated memory is still 155.2MB. Free memory was 54.8MB in the beginning and 54.5MB in the end (delta: 294.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: 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 someBinaryDOUBLEComparisonOperation at line 44, overapproximation of to_real at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42. Possible FailurePath: [L22] double E, E0, E1, S0, S1, S; [L23] int i; [L25] E = __VERIFIER_nondet_double() [L26] E0 = __VERIFIER_nondet_double() [L27] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L27] RET assume_abort_if_not(E >= 0. && E <= 1.) [L28] CALL assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume_abort_if_not(E0 >= 0. && E0 <= 1.) [L30] S0 = 0 [L31] S = 0 [L33] i = 0 VAL [i=0] [L33] COND TRUE i <= 1000000 [L34] E1 = E0 [L35] E0 = E [L37] E = __VERIFIER_nondet_double() [L38] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L38] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E=53, E=55, i=0] [L40] S1 = S0 [L41] S0 = S [L42] S = 0.7*E - E0*1.3 + E1*1.1 + S0*1.4 - S1*0.7 [L44] CALL __VERIFIER_assert(S >= -4. && S <= 4.) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L17] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 3, 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, 23 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, 23 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 12/12 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 23:08:41,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 e42e84729022b725ebcfce66d0ece68757a1a9b385230356b4d45a24fc6b4ef2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:08:43,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:08:43,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 23:08:43,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:08:43,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:08:44,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:08:44,025 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:08:44,026 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:08:44,027 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:08:44,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:08:44,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:08:44,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:08:44,030 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:08:44,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:08:44,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:08:44,032 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:08:44,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:08:44,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:08:44,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:08:44,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:08:44,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:08:44,036 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:08:44,037 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:08:44,037 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:08:44,038 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:08:44,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:08:44,039 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:08:44,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:08:44,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:08:44,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:08:44,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:44,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:08:44,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:08:44,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:08:44,044 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:08:44,044 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:08:44,045 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:08:44,045 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:08:44,045 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:08:44,046 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:08:44,046 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:08:44,046 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:08:44,047 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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e42e84729022b725ebcfce66d0ece68757a1a9b385230356b4d45a24fc6b4ef2 [2023-11-06 23:08:44,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:08:44,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:08:44,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:08:44,408 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:08:44,410 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:08:44,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-benchs/filter2.c [2023-11-06 23:08:47,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:08:47,979 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:08:47,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/sv-benchmarks/c/float-benchs/filter2.c [2023-11-06 23:08:47,987 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/data/53a41b323/d3f2e0509c5e499982be526e7b84162a/FLAGbd67d8fa8 [2023-11-06 23:08:48,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/data/53a41b323/d3f2e0509c5e499982be526e7b84162a [2023-11-06 23:08:48,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:08:48,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:08:48,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:48,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:08:48,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:08:48,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e3059e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48, skipping insertion in model container [2023-11-06 23:08:48,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,386 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:08:48,565 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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/sv-benchmarks/c/float-benchs/filter2.c[652,665] [2023-11-06 23:08:48,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:48,611 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:08:48,649 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_7c7c2370-aba0-4ec8-8741-c6243bc834ee/sv-benchmarks/c/float-benchs/filter2.c[652,665] [2023-11-06 23:08:48,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:48,672 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:08:48,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48 WrapperNode [2023-11-06 23:08:48,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:48,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:48,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:08:48,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:08:48,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,715 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2023-11-06 23:08:48,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:48,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:08:48,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:08:48,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:08:48,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:08:48,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:08:48,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:08:48,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:08:48,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (1/1) ... [2023-11-06 23:08:48,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:48,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:48,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:08:48,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:08:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:08:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:08:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 23:08:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 23:08:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:08:48,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:08:48,945 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:08:48,947 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:08:51,389 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:08:51,395 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:08:51,395 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:08:51,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:51 BoogieIcfgContainer [2023-11-06 23:08:51,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:08:51,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:08:51,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:08:51,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:08:51,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:08:48" (1/3) ... [2023-11-06 23:08:51,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5465f963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:51, skipping insertion in model container [2023-11-06 23:08:51,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:48" (2/3) ... [2023-11-06 23:08:51,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5465f963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:51, skipping insertion in model container [2023-11-06 23:08:51,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:51" (3/3) ... [2023-11-06 23:08:51,408 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2.c [2023-11-06 23:08:51,429 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:08:51,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:08:51,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:51,488 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;@5861425d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:51,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:08:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 23:08:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 23:08:51,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:51,502 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:51,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:51,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:51,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1602622425, now seen corresponding path program 1 times [2023-11-06 23:08:51,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:51,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128015243] [2023-11-06 23:08:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:51,525 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 23:08:51,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:51,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:08:51,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:08:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:53,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 23:08:53,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-06 23:08:53,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:53,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:53,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128015243] [2023-11-06 23:08:53,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128015243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:53,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:53,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:08:53,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051807522] [2023-11-06 23:08:53,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:53,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:08:53,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:53,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:08:53,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:08:53,443 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 23:08:53,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:53,469 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2023-11-06 23:08:53,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:08:53,472 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2023-11-06 23:08:53,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:53,499 INFO L225 Difference]: With dead ends: 39 [2023-11-06 23:08:53,499 INFO L226 Difference]: Without dead ends: 17 [2023-11-06 23:08:53,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 23:08:53,508 INFO L413 NwaCegarLoop]: 23 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, 23 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 23:08:53,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:08:53,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-06 23:08:53,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-06 23:08:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 23:08:53,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2023-11-06 23:08:53,553 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 22 [2023-11-06 23:08:53,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:53,554 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2023-11-06 23:08:53,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 23:08:53,554 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-06 23:08:53,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 23:08:53,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:53,556 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:53,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:08:53,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:08:53,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:53,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:53,762 INFO L85 PathProgramCache]: Analyzing trace with hash 168652453, now seen corresponding path program 1 times [2023-11-06 23:08:53,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:53,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180965654] [2023-11-06 23:08:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:53,764 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 23:08:53,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:53,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:08:53,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:09:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:01,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-06 23:09:01,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:11:46,903 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0))) (.cse9 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (let ((.cse3 (fp.neg .cse2)) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))) (.cse7 (fp.mul roundNearestTiesToEven .cse9 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (.cse8 (fp.mul roundNearestTiesToEven .cse9 .cse4)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse5)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse6)) .cse7) .cse8))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse0) (fp.leq .cse1 .cse2) (fp.geq .cse1 .cse3)))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (or (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse5)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse6)) .cse7) .cse8) .cse3)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse0))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse0))) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse0))) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse0) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse5)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse6)) .cse7) .cse8) .cse2)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse0))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse0)))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))))) is different from false [2023-11-06 23:12:18,656 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))) (.cse3 (fp.mul roundNearestTiesToEven .cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (.cse4 (fp.mul roundNearestTiesToEven .cse7 .cse0)) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse1)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse2)) .cse3) .cse4) (fp.neg .cse5))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse6))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse6))) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse6))) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse6) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse1)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse2)) .cse3) .cse4) .cse5)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse6))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse6)))))))) is different from false [2023-11-06 23:12:20,697 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))) (.cse3 (fp.mul roundNearestTiesToEven .cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (.cse4 (fp.mul roundNearestTiesToEven .cse7 .cse0)) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse1)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse2)) .cse3) .cse4) (fp.neg .cse5))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse6))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse6))) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse6))) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse6) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse1)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse2)) .cse3) .cse4) .cse5)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse6))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse6)))))))) is different from true [2023-11-06 23:12:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 23:12:20,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:20,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:20,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180965654] [2023-11-06 23:12:20,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180965654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:20,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:20,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:12:20,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847884152] [2023-11-06 23:12:20,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:20,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:12:20,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:20,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:12:20,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=60, Unknown=3, NotChecked=34, Total=132 [2023-11-06 23:12:20,703 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 23:12:24,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:26,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:28,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:30,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:32,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:34,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:36,529 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq |c_ULTIMATE.start_main_~E~0#1| .cse0) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0))) (.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (let ((.cse4 (fp.neg .cse3)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))) (.cse8 (fp.mul roundNearestTiesToEven .cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (.cse9 (fp.mul roundNearestTiesToEven .cse10 .cse5)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse5 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse6)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse7)) .cse8) .cse9))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1) (fp.leq .cse2 .cse3) (fp.geq .cse2 .cse4)))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (or (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse5 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse6)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse7)) .cse8) .cse9) .cse4)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1))) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse5 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse6)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse7)) .cse8) .cse9) .cse3)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1)))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))))) (fp.leq |c_ULTIMATE.start_main_~E0~0#1| .cse0) (fp.geq |c_ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |c_ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-11-06 23:12:39,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:41,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:43,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:45,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:47,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:49,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:51,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:53,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 23:12:53,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:53,273 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2023-11-06 23:12:53,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 23:12:53,444 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2023-11-06 23:12:53,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:53,445 INFO L225 Difference]: With dead ends: 27 [2023-11-06 23:12:53,445 INFO L226 Difference]: Without dead ends: 25 [2023-11-06 23:12:53,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=42, Invalid=76, Unknown=4, NotChecked=60, Total=182 [2023-11-06 23:12:53,450 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:53,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 63 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 14 Unknown, 63 Unchecked, 30.0s Time] [2023-11-06 23:12:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-06 23:12:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-06 23:12:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 23:12:53,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-11-06 23:12:53,459 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 22 [2023-11-06 23:12:53,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:53,459 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-06 23:12:53,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 23:12:53,460 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-11-06 23:12:53,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-06 23:12:53,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:53,461 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:53,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:12:53,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:12:53,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:12:53,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:53,674 INFO L85 PathProgramCache]: Analyzing trace with hash -262310387, now seen corresponding path program 1 times [2023-11-06 23:12:53,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936209581] [2023-11-06 23:12:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:53,675 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 23:12:53,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:53,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 23:12:53,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7c2370-aba0-4ec8-8741-c6243bc834ee/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 (4)] Waiting until timeout for monitored process