./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:08:09,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:08:09,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:08:09,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:08:09,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:08:09,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:08:09,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:08:09,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:08:09,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:08:09,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:08:09,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:08:09,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:08:09,858 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:08:09,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:08:09,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:08:09,861 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:08:09,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:08:09,862 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:08:09,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:08:09,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:08:09,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:08:09,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:08:09,865 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:08:09,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:08:09,866 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:08:09,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:08:09,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:08:09,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:08:09,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:09,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:08:09,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:08:09,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:08:09,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:08:09,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:08:09,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:08:09,873 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:08:09,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:08:09,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:08:09,874 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:08:09,874 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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 [2023-11-06 22:08:10,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:08:10,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:08:10,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:08:10,247 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:08:10,248 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:08:10,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2023-11-06 22:08:13,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:08:13,783 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:08:13,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2023-11-06 22:08:13,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/data/eeee48917/bf9472049bb5403f90547acd22f8ed0f/FLAGa5848e5d6 [2023-11-06 22:08:13,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/data/eeee48917/bf9472049bb5403f90547acd22f8ed0f [2023-11-06 22:08:13,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:08:13,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:08:13,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:13,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:08:13,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:08:13,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:13" (1/1) ... [2023-11-06 22:08:13,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f84e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:13, skipping insertion in model container [2023-11-06 22:08:13,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:13" (1/1) ... [2023-11-06 22:08:13,868 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:08:14,065 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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i[915,928] [2023-11-06 22:08:14,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:14,129 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:08:14,148 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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i[915,928] [2023-11-06 22:08:14,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:14,198 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:08:14,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14 WrapperNode [2023-11-06 22:08:14,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:14,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:14,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:08:14,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:08:14,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,270 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 61 [2023-11-06 22:08:14,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:14,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:08:14,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:08:14,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:08:14,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:08:14,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:08:14,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:08:14,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:08:14,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (1/1) ... [2023-11-06 22:08:14,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:14,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:08:14,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:08:14,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:08:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:08:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:08:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:08:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:08:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:08:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:08:14,471 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:08:14,474 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:08:14,789 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:08:14,797 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:08:14,797 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:08:14,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:14 BoogieIcfgContainer [2023-11-06 22:08:14,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:08:14,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:08:14,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:08:14,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:08:14,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:13" (1/3) ... [2023-11-06 22:08:14,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6af0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:14, skipping insertion in model container [2023-11-06 22:08:14,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:14" (2/3) ... [2023-11-06 22:08:14,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6af0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:14, skipping insertion in model container [2023-11-06 22:08:14,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:14" (3/3) ... [2023-11-06 22:08:14,817 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-83.i [2023-11-06 22:08:14,842 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:08:14,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:08:14,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:08:14,918 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;@53b3f1fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:08:14,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:08:14,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:08:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:08:14,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:14,936 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:14,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:14,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1746521965, now seen corresponding path program 1 times [2023-11-06 22:08:14,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:14,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053353064] [2023-11-06 22:08:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:14,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:08:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:08:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:08:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:08:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:15,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:08:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-06 22:08:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:15,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053353064] [2023-11-06 22:08:15,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053353064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:15,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:15,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:08:15,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987966013] [2023-11-06 22:08:15,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:15,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:08:15,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:15,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:08:15,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:08:15,407 INFO L87 Difference]: Start difference. First operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:08:15,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:15,442 INFO L93 Difference]: Finished difference Result 51 states and 73 transitions. [2023-11-06 22:08:15,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:08:15,444 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2023-11-06 22:08:15,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:15,450 INFO L225 Difference]: With dead ends: 51 [2023-11-06 22:08:15,450 INFO L226 Difference]: Without dead ends: 25 [2023-11-06 22:08:15,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:08:15,458 INFO L413 NwaCegarLoop]: 30 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, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:08:15,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:08:15,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-06 22:08:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-06 22:08:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:08:15,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2023-11-06 22:08:15,501 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 39 [2023-11-06 22:08:15,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:15,501 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-11-06 22:08:15,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:08:15,502 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-06 22:08:15,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:08:15,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:15,505 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:15,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:08:15,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:15,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash -539927855, now seen corresponding path program 1 times [2023-11-06 22:08:15,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:15,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216874662] [2023-11-06 22:08:15,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:15,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:08:15,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:08:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:08:15,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:08:15,757 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:08:15,759 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:08:15,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:08:15,766 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:08:15,770 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:08:15,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:08:15 BoogieIcfgContainer [2023-11-06 22:08:15,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:08:15,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:08:15,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:08:15,849 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:08:15,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:14" (3/4) ... [2023-11-06 22:08:15,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:08:15,853 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:08:15,854 INFO L158 Benchmark]: Toolchain (without parser) took 2028.97ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 100.0MB in the end (delta: 12.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2023-11-06 22:08:15,856 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory was 58.4MB in the beginning and 58.2MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:08:15,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.77ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 101.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:08:15,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.40ms. Allocated memory is still 157.3MB. Free memory was 101.4MB in the beginning and 99.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:08:15,867 INFO L158 Benchmark]: Boogie Preprocessor took 42.66ms. Allocated memory is still 157.3MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:08:15,867 INFO L158 Benchmark]: RCFGBuilder took 487.81ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 86.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:08:15,869 INFO L158 Benchmark]: TraceAbstraction took 1040.36ms. Allocated memory is still 157.3MB. Free memory was 86.1MB in the beginning and 100.7MB in the end (delta: -14.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:08:15,870 INFO L158 Benchmark]: Witness Printer took 5.58ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 100.0MB in the end (delta: 728.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:08:15,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory was 58.4MB in the beginning and 58.2MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.77ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 101.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.40ms. Allocated memory is still 157.3MB. Free memory was 101.4MB in the beginning and 99.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.66ms. Allocated memory is still 157.3MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 487.81ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 86.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1040.36ms. Allocated memory is still 157.3MB. Free memory was 86.1MB in the beginning and 100.7MB in the end (delta: -14.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.58ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 100.0MB in the end (delta: 728.4kB). 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: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 2; [L23] unsigned char var_1_5 = 128; [L24] unsigned char var_1_6 = 0; [L25] unsigned char var_1_7 = 10; [L26] float var_1_8 = 128.25; [L27] float var_1_9 = 49.8; [L28] unsigned short int var_1_10 = 5; VAL [isInitial=0, var_1_10=5, var_1_1=2, var_1_5=128, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L58] isInitial = 1 [L59] FCALL initially() [L60] COND TRUE 1 [L61] FCALL updateLastVariables() [L62] CALL updateVariables() [L42] var_1_5 = __VERIFIER_nondet_uchar() [L43] CALL assume_abort_if_not(var_1_5 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L43] RET assume_abort_if_not(var_1_5 >= 127) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L44] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L44] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L45] var_1_6 = __VERIFIER_nondet_uchar() [L46] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L46] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L47] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L47] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L48] var_1_9 = __VERIFIER_nondet_float() [L49] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=65539] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=65539] [L49] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=65539] [L62] RET updateVariables() [L63] CALL step() [L32] var_1_7 = var_1_5 [L33] var_1_8 = var_1_9 VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=254, var_1_6=0, var_1_7=254, var_1_8=65539, var_1_9=65539] [L34] COND TRUE ((var_1_8 + var_1_8) * var_1_8) < -0.5f [L35] var_1_1 = (var_1_5 - var_1_6) VAL [isInitial=1, var_1_10=5, var_1_1=254, var_1_5=254, var_1_6=0, var_1_7=254, var_1_8=65539, var_1_9=65539] [L39] var_1_10 = var_1_1 VAL [isInitial=1, var_1_10=254, var_1_1=254, var_1_5=254, var_1_6=0, var_1_7=254, var_1_8=65539, var_1_9=65539] [L63] RET step() [L64] CALL, EXPR property() [L54-L55] return ((((((var_1_8 + var_1_8) * var_1_8) < -0.5f) ? (var_1_1 == ((unsigned char) (var_1_5 - var_1_6))) : (var_1_1 == ((unsigned char) var_1_5))) && (var_1_7 == ((unsigned char) var_1_5))) && (var_1_8 == ((float) var_1_9))) && (var_1_10 == ((unsigned short int) var_1_1)) ; VAL [\result=0, isInitial=1, var_1_10=254, var_1_1=254, var_1_5=254, var_1_6=0, var_1_7=254, var_1_8=65539, var_1_9=65539] [L64] RET, EXPR property() [L64] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=254, var_1_1=254, var_1_5=254, var_1_6=0, var_1_7=254, var_1_8=65539, var_1_9=65539] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=254, var_1_1=254, var_1_5=254, var_1_6=0, var_1_7=254, var_1_8=65539, var_1_9=65539] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 5, 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, 30 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, 30 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 40/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:08:15,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:08:18,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:08:19,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:08:19,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:08:19,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:08:19,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:08:19,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:08:19,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:08:19,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:08:19,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:08:19,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:08:19,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:08:19,208 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:08:19,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:08:19,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:08:19,211 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:08:19,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:08:19,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:08:19,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:08:19,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:08:19,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:08:19,214 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:08:19,214 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:08:19,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:08:19,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:08:19,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:08:19,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:08:19,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:08:19,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:08:19,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:08:19,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:19,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:08:19,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:08:19,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:08:19,221 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:08:19,221 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:08:19,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:08:19,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:08:19,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:08:19,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:08:19,223 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:08:19,224 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:08:19,224 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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 [2023-11-06 22:08:19,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:08:19,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:08:19,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:08:19,722 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:08:19,722 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:08:19,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2023-11-06 22:08:23,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:08:23,306 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:08:23,306 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2023-11-06 22:08:23,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/data/b36f5a4f6/85c151f31d484285bbfba51a78a92a1a/FLAG23e32283b [2023-11-06 22:08:23,335 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/data/b36f5a4f6/85c151f31d484285bbfba51a78a92a1a [2023-11-06 22:08:23,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:08:23,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:08:23,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:23,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:08:23,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:08:23,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a17c066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23, skipping insertion in model container [2023-11-06 22:08:23,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,378 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:08:23,590 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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i[915,928] [2023-11-06 22:08:23,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:23,667 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:08:23,684 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_1f061a8e-cf48-44fa-ac73-5798afebe0c6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i[915,928] [2023-11-06 22:08:23,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:23,741 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:08:23,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23 WrapperNode [2023-11-06 22:08:23,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:23,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:23,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:08:23,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:08:23,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,821 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 61 [2023-11-06 22:08:23,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:23,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:08:23,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:08:23,823 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:08:23,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:08:23,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:08:23,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:08:23,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:08:23,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (1/1) ... [2023-11-06 22:08:23,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:23,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:08:23,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:08:23,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:08:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:08:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:08:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:08:23,997 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:08:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:08:23,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:08:24,088 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:08:24,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:08:25,712 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:08:25,720 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:08:25,720 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:08:25,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:25 BoogieIcfgContainer [2023-11-06 22:08:25,723 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:08:25,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:08:25,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:08:25,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:08:25,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:23" (1/3) ... [2023-11-06 22:08:25,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1727458f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:25, skipping insertion in model container [2023-11-06 22:08:25,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:23" (2/3) ... [2023-11-06 22:08:25,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1727458f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:25, skipping insertion in model container [2023-11-06 22:08:25,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:25" (3/3) ... [2023-11-06 22:08:25,735 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-83.i [2023-11-06 22:08:25,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:08:25,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:08:25,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:08:25,819 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;@6a93f46c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:08:25,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:08:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:08:25,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:08:25,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:25,835 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:25,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:25,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:25,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1746521965, now seen corresponding path program 1 times [2023-11-06 22:08:25,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:08:25,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526872497] [2023-11-06 22:08:25,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:25,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:08:25,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:08:25,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:08:25,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:08:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:26,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:08:26,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:08:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-06 22:08:26,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:08:26,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:08:26,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526872497] [2023-11-06 22:08:26,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526872497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:26,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:26,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:08:26,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177852269] [2023-11-06 22:08:26,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:26,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:08:26,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:08:26,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:08:26,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:08:26,322 INFO L87 Difference]: Start difference. First operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:08:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:26,361 INFO L93 Difference]: Finished difference Result 51 states and 73 transitions. [2023-11-06 22:08:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:08:26,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2023-11-06 22:08:26,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:26,372 INFO L225 Difference]: With dead ends: 51 [2023-11-06 22:08:26,373 INFO L226 Difference]: Without dead ends: 25 [2023-11-06 22:08:26,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:08:26,383 INFO L413 NwaCegarLoop]: 29 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, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:08:26,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:08:26,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-06 22:08:26,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-06 22:08:26,441 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), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 22:08:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-11-06 22:08:26,445 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 39 [2023-11-06 22:08:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:26,446 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-11-06 22:08:26,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:08:26,447 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-06 22:08:26,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:08:26,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:26,451 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:26,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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)] Ended with exit code 0 [2023-11-06 22:08:26,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:08:26,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:26,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash -482669553, now seen corresponding path program 1 times [2023-11-06 22:08:26,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:08:26,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526246661] [2023-11-06 22:08:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:26,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:08:26,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:08:26,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:08:26,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:08:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:26,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:08:26,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:08:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 22:08:32,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:08:32,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:08:32,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526246661] [2023-11-06 22:08:32,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526246661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:32,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:32,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:08:32,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881356198] [2023-11-06 22:08:32,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:32,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:08:32,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:08:32,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:08:32,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:08:32,029 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-06 22:08:37,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:37,578 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2023-11-06 22:08:37,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:08:37,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2023-11-06 22:08:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:37,591 INFO L225 Difference]: With dead ends: 44 [2023-11-06 22:08:37,592 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:08:37,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:08:37,595 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:08:37,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 106 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-06 22:08:37,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:08:37,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:08:37,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:08:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:08:37,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2023-11-06 22:08:37,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:37,598 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:08:37,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-06 22:08:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:08:37,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:08:37,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:08:37,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:08:37,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:08:37,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:08:38,824 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 40) no Hoare annotation was computed. [2023-11-06 22:08:38,825 INFO L895 garLoopResultBuilder]: At program point L60-2(lines 60 66) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1)))) [2023-11-06 22:08:38,825 INFO L899 garLoopResultBuilder]: For program point L60-3(lines 60 66) no Hoare annotation was computed. [2023-11-06 22:08:38,825 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-06 22:08:38,826 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-06 22:08:38,826 INFO L895 garLoopResultBuilder]: At program point L19-3(line 19) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= ~var_1_1~0 ~var_1_5~0) (= |ULTIMATE.start_property_#res#1| (_ bv1 32)) (= ((_ zero_extend 8) ~var_1_1~0) ~var_1_10~0) (= ~var_1_8~0 ~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1)))) (= ~var_1_5~0 ~var_1_7~0)) [2023-11-06 22:08:38,826 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-06 22:08:38,827 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 57 68) the Hoare annotation is: false [2023-11-06 22:08:38,827 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:08:38,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:08:38,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-06 22:08:38,828 INFO L902 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: true [2023-11-06 22:08:38,828 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 41 50) no Hoare annotation was computed. [2023-11-06 22:08:38,829 INFO L895 garLoopResultBuilder]: At program point property_returnLabel#1(lines 53 56) the Hoare annotation is: (and (= ~var_1_1~0 ~var_1_5~0) (= |ULTIMATE.start_property_#res#1| (_ bv1 32)) (= ((_ zero_extend 8) ~var_1_1~0) ~var_1_10~0) (= ~var_1_8~0 ~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1)))) (= ~var_1_5~0 ~var_1_7~0)) [2023-11-06 22:08:38,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:08:38,829 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 30) no Hoare annotation was computed. [2023-11-06 22:08:38,829 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1)))) [2023-11-06 22:08:38,830 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1)))) [2023-11-06 22:08:38,830 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:08:38,830 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 38) no Hoare annotation was computed. [2023-11-06 22:08:38,830 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2023-11-06 22:08:38,831 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2023-11-06 22:08:38,831 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-06 22:08:38,831 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1)))) [2023-11-06 22:08:38,832 INFO L895 garLoopResultBuilder]: At program point L43-1(line 43) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1)))) [2023-11-06 22:08:38,832 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-06 22:08:38,832 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-06 22:08:38,833 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-06 22:08:38,833 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-06 22:08:38,837 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:08:38,839 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:08:38,856 ERROR L462 ceAbstractionStarter]: Failed to backtranslate (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1)))) [2023-11-06 22:08:38,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:08:38 BoogieIcfgContainer [2023-11-06 22:08:38,866 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:08:38,867 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:08:38,867 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:08:38,868 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:08:38,868 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:25" (3/4) ... [2023-11-06 22:08:38,871 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:08:38,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-06 22:08:38,887 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-06 22:08:38,887 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:08:38,888 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:08:38,888 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:08:38,916 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((var_1_1 == var_1_5) && (\result == 1)) && (var_1_1 == var_1_10)) && (var_1_8 == var_1_9)) && (var_1_5 == var_1_7)) [2023-11-06 22:08:38,916 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((cond == 1) && (var_1_1 == var_1_5)) && (\result == 1)) && (var_1_1 == var_1_10)) && (var_1_8 == var_1_9)) && (var_1_5 == var_1_7)) [2023-11-06 22:08:38,942 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((var_1_1 == var_1_5) && (\result == 1)) && (var_1_1 == var_1_10)) && (var_1_8 == var_1_9)) && (var_1_5 == var_1_7)) [2023-11-06 22:08:38,942 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((cond == 1) && (var_1_1 == var_1_5)) && (\result == 1)) && (var_1_1 == var_1_10)) && (var_1_8 == var_1_9)) && (var_1_5 == var_1_7)) [2023-11-06 22:08:38,950 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:08:38,951 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:08:38,951 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:08:38,952 INFO L158 Benchmark]: Toolchain (without parser) took 15611.40ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 80.3MB in the beginning and 51.4MB in the end (delta: 28.9MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2023-11-06 22:08:38,952 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:08:38,953 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.73ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 68.6MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:08:38,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.72ms. Allocated memory is still 104.9MB. Free memory was 68.6MB in the beginning and 67.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:08:38,954 INFO L158 Benchmark]: Boogie Preprocessor took 76.62ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 65.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:08:38,955 INFO L158 Benchmark]: RCFGBuilder took 1823.35ms. Allocated memory is still 104.9MB. Free memory was 65.3MB in the beginning and 53.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:08:38,955 INFO L158 Benchmark]: TraceAbstraction took 13139.86ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 53.4MB in the beginning and 54.5MB in the end (delta: -1.1MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-11-06 22:08:38,956 INFO L158 Benchmark]: Witness Printer took 83.80ms. Allocated memory is still 125.8MB. Free memory was 54.5MB in the beginning and 51.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:08:38,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.73ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 68.6MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.72ms. Allocated memory is still 104.9MB. Free memory was 68.6MB in the beginning and 67.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 76.62ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 65.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1823.35ms. Allocated memory is still 104.9MB. Free memory was 65.3MB in the beginning and 53.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13139.86ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 53.4MB in the beginning and 54.5MB in the end (delta: -1.1MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Witness Printer took 83.80ms. Allocated memory is still 125.8MB. Free memory was 54.5MB in the beginning and 51.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.0s, OverallIterations: 2, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 53 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 24 PreInvPairs, 38 NumberOfFragments, 215 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 275 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 215 SizeOfPredicates, 12 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 80/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (((((var_1_1 == var_1_5) && (\result == 1)) && (var_1_1 == var_1_10)) && (var_1_8 == var_1_9)) && (var_1_5 == var_1_7)) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((cond == 1) && (var_1_1 == var_1_5)) && (\result == 1)) && (var_1_1 == var_1_10)) && (var_1_8 == var_1_9)) && (var_1_5 == var_1_7)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:08:39,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f061a8e-cf48-44fa-ac73-5798afebe0c6/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 Writing output log to file Ultimate.log Result: TRUE