./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:48:31,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:48:31,973 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:48:31,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:48:31,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:48:32,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:48:32,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:48:32,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:48:32,007 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:48:32,008 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:48:32,008 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:48:32,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:48:32,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:48:32,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:48:32,011 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:48:32,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:48:32,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:48:32,013 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:48:32,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:48:32,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:48:32,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:48:32,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:48:32,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:48:32,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:48:32,021 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:48:32,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:48:32,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:48:32,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:48:32,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:48:32,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:48:32,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:48:32,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:48:32,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:48:32,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:48:32,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:48:32,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:48:32,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:48:32,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:48:32,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:48:32,027 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:48:32,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:48:32,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:48:32,029 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_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 [2023-11-26 10:48:32,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:48:32,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:48:32,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:48:32,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:48:32,328 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:48:32,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i [2023-11-26 10:48:35,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:48:35,889 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:48:35,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i [2023-11-26 10:48:35,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/data/2b8155ee9/565b6c46264d4bfdbbf867e057f668a4/FLAG80b5b9ce1 [2023-11-26 10:48:35,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/data/2b8155ee9/565b6c46264d4bfdbbf867e057f668a4 [2023-11-26 10:48:35,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:48:35,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:48:35,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:35,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:48:35,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:48:35,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:35" (1/1) ... [2023-11-26 10:48:35,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499238d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:35, skipping insertion in model container [2023-11-26 10:48:35,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:35" (1/1) ... [2023-11-26 10:48:35,963 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:48:36,133 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_08f995a4-1add-4540-beb7-4b1ac401ce4c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2023-11-26 10:48:36,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:36,192 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:48:36,210 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_08f995a4-1add-4540-beb7-4b1ac401ce4c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2023-11-26 10:48:36,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:36,279 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:48:36,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36 WrapperNode [2023-11-26 10:48:36,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:36,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:36,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:48:36,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:48:36,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,352 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2023-11-26 10:48:36,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:36,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:48:36,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:48:36,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:48:36,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,369 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,391 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:48:36,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:48:36,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:48:36,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:48:36,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:48:36,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (1/1) ... [2023-11-26 10:48:36,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:48:36,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:36,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:48:36,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:48:36,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:48:36,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:48:36,492 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:48:36,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:48:36,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:48:36,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:48:36,574 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:48:36,577 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:48:36,836 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:48:36,895 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:48:36,895 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:48:36,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:36 BoogieIcfgContainer [2023-11-26 10:48:36,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:48:36,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:48:36,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:48:36,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:48:36,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:48:35" (1/3) ... [2023-11-26 10:48:36,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b27271e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:48:36, skipping insertion in model container [2023-11-26 10:48:36,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:36" (2/3) ... [2023-11-26 10:48:36,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b27271e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:48:36, skipping insertion in model container [2023-11-26 10:48:36,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:36" (3/3) ... [2023-11-26 10:48:36,918 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-21.i [2023-11-26 10:48:36,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:48:36,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:48:37,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:48:37,018 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@424a8fef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:48:37,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:48:37,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 10:48:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 10:48:37,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:37,041 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:37,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:48:37,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:37,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1039608984, now seen corresponding path program 1 times [2023-11-26 10:48:37,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:37,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913088249] [2023-11-26 10:48:37,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:37,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:37,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:37,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913088249] [2023-11-26 10:48:37,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 10:48:37,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269182725] [2023-11-26 10:48:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:37,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:37,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:37,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:37,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:48:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:37,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:48:37,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-26 10:48:37,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:37,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269182725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:37,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:37,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:37,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700487691] [2023-11-26 10:48:37,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:37,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:48:37,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:37,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:48:37,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:48:37,676 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 10:48:37,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:37,719 INFO L93 Difference]: Finished difference Result 63 states and 103 transitions. [2023-11-26 10:48:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:48:37,723 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2023-11-26 10:48:37,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:37,732 INFO L225 Difference]: With dead ends: 63 [2023-11-26 10:48:37,733 INFO L226 Difference]: Without dead ends: 31 [2023-11-26 10:48:37,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:48:37,747 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:37,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:48:37,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-26 10:48:37,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-26 10:48:37,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 10:48:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2023-11-26 10:48:37,801 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 49 [2023-11-26 10:48:37,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:37,802 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2023-11-26 10:48:37,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 10:48:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2023-11-26 10:48:37,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 10:48:37,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:37,805 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:37,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:38,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 10:48:38,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:48:38,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:38,014 INFO L85 PathProgramCache]: Analyzing trace with hash 743328986, now seen corresponding path program 1 times [2023-11-26 10:48:38,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:38,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606429989] [2023-11-26 10:48:38,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:38,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:38,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:38,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135492233] [2023-11-26 10:48:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:38,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:38,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:38,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:38,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:48:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:38,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:48:38,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-26 10:48:38,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:48:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-26 10:48:38,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:38,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606429989] [2023-11-26 10:48:38,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:38,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135492233] [2023-11-26 10:48:38,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135492233] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:48:38,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:48:38,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-26 10:48:38,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358407962] [2023-11-26 10:48:38,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:48:38,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:48:38,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:38,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:48:38,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:48:38,495 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-26 10:48:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:38,607 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2023-11-26 10:48:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:48:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 49 [2023-11-26 10:48:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:38,609 INFO L225 Difference]: With dead ends: 65 [2023-11-26 10:48:38,610 INFO L226 Difference]: Without dead ends: 35 [2023-11-26 10:48:38,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:48:38,612 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 47 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:38,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 72 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:48:38,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-26 10:48:38,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-26 10:48:38,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 10:48:38,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2023-11-26 10:48:38,626 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 46 transitions. Word has length 49 [2023-11-26 10:48:38,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:38,627 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 46 transitions. [2023-11-26 10:48:38,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-26 10:48:38,628 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2023-11-26 10:48:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-26 10:48:38,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:38,631 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:38,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:38,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:38,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:48:38,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:38,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1322238471, now seen corresponding path program 1 times [2023-11-26 10:48:38,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:38,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178608711] [2023-11-26 10:48:38,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:38,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:38,874 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:38,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990535452] [2023-11-26 10:48:38,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:38,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:38,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:38,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:38,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:48:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:38,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-26 10:48:39,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-26 10:48:39,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:48:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-26 10:48:55,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:55,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178608711] [2023-11-26 10:48:55,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:55,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990535452] [2023-11-26 10:48:55,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990535452] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 10:48:55,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:48:55,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 15 [2023-11-26 10:48:55,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578598259] [2023-11-26 10:48:55,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:55,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 10:48:55,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:55,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 10:48:55,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:48:55,930 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 10:48:58,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-26 10:49:09,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:09,665 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2023-11-26 10:49:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 10:49:09,665 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-11-26 10:49:09,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:09,667 INFO L225 Difference]: With dead ends: 104 [2023-11-26 10:49:09,667 INFO L226 Difference]: Without dead ends: 102 [2023-11-26 10:49:09,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2023-11-26 10:49:09,669 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 135 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:09,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 145 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-26 10:49:09,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-26 10:49:09,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 69. [2023-11-26 10:49:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.24) internal successors, (62), 50 states have internal predecessors, (62), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-26 10:49:09,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 90 transitions. [2023-11-26 10:49:09,690 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 90 transitions. Word has length 50 [2023-11-26 10:49:09,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:09,691 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 90 transitions. [2023-11-26 10:49:09,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 10:49:09,691 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 90 transitions. [2023-11-26 10:49:09,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 10:49:09,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:09,693 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:09,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 10:49:09,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:09,894 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:09,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:09,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1684609692, now seen corresponding path program 1 times [2023-11-26 10:49:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574269523] [2023-11-26 10:49:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:09,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:09,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:09,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144157435] [2023-11-26 10:49:09,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:09,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:09,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:09,932 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:09,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:49:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-26 10:49:10,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:15,962 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-26 10:49:15,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:49:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-26 10:49:24,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:24,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574269523] [2023-11-26 10:49:24,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:24,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144157435] [2023-11-26 10:49:24,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144157435] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 10:49:24,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:49:24,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2023-11-26 10:49:24,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474122149] [2023-11-26 10:49:24,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:24,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:49:24,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:24,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:49:24,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2023-11-26 10:49:24,560 INFO L87 Difference]: Start difference. First operand 69 states and 90 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 10:49:35,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:35,084 INFO L93 Difference]: Finished difference Result 234 states and 299 transitions. [2023-11-26 10:49:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-26 10:49:35,085 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2023-11-26 10:49:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:35,088 INFO L225 Difference]: With dead ends: 234 [2023-11-26 10:49:35,088 INFO L226 Difference]: Without dead ends: 166 [2023-11-26 10:49:35,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=317, Invalid=1323, Unknown=0, NotChecked=0, Total=1640 [2023-11-26 10:49:35,092 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 163 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:35,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 302 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-26 10:49:35,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-26 10:49:35,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 102. [2023-11-26 10:49:35,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 74 states have internal predecessors, (93), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-26 10:49:35,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 135 transitions. [2023-11-26 10:49:35,123 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 135 transitions. Word has length 51 [2023-11-26 10:49:35,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:35,124 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 135 transitions. [2023-11-26 10:49:35,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 10:49:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 135 transitions. [2023-11-26 10:49:35,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 10:49:35,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:35,127 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:35,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:35,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:35,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:35,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:35,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1969148450, now seen corresponding path program 1 times [2023-11-26 10:49:35,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:35,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620298093] [2023-11-26 10:49:35,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:35,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:35,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:35,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34207981] [2023-11-26 10:49:35,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:35,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:35,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:35,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:35,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:49:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:35,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:49:35,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:35,531 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-26 10:49:35,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:35,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:35,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620298093] [2023-11-26 10:49:35,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:35,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34207981] [2023-11-26 10:49:35,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34207981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:35,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:35,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:35,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311175495] [2023-11-26 10:49:35,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:35,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:49:35,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:35,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:49:35,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:49:35,535 INFO L87 Difference]: Start difference. First operand 102 states and 135 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-26 10:49:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:35,627 INFO L93 Difference]: Finished difference Result 241 states and 316 transitions. [2023-11-26 10:49:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:49:35,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 51 [2023-11-26 10:49:35,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:35,630 INFO L225 Difference]: With dead ends: 241 [2023-11-26 10:49:35,630 INFO L226 Difference]: Without dead ends: 140 [2023-11-26 10:49:35,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:49:35,633 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 26 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:35,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 110 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:49:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-26 10:49:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 126. [2023-11-26 10:49:35,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 89 states have (on average 1.2134831460674158) internal successors, (108), 89 states have internal predecessors, (108), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-26 10:49:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 164 transitions. [2023-11-26 10:49:35,663 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 164 transitions. Word has length 51 [2023-11-26 10:49:35,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:35,663 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 164 transitions. [2023-11-26 10:49:35,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-26 10:49:35,664 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 164 transitions. [2023-11-26 10:49:35,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-26 10:49:35,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:35,666 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:35,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:35,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:35,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:35,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:35,873 INFO L85 PathProgramCache]: Analyzing trace with hash 674424809, now seen corresponding path program 1 times [2023-11-26 10:49:35,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:35,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675824346] [2023-11-26 10:49:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:35,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:35,898 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:35,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193696725] [2023-11-26 10:49:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:35,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:35,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:35,906 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:35,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:49:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:49:35,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:49:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:49:36,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:49:36,055 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:49:36,057 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:49:36,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:36,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:36,269 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-26 10:49:36,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:49:36,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:49:36 BoogieIcfgContainer [2023-11-26 10:49:36,319 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:49:36,320 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:49:36,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:49:36,320 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:49:36,321 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:36" (3/4) ... [2023-11-26 10:49:36,323 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:49:36,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:49:36,325 INFO L158 Benchmark]: Toolchain (without parser) took 60404.50ms. Allocated memory was 153.1MB in the beginning and 599.8MB in the end (delta: 446.7MB). Free memory was 123.4MB in the beginning and 459.7MB in the end (delta: -336.3MB). Peak memory consumption was 113.5MB. Max. memory is 16.1GB. [2023-11-26 10:49:36,325 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 88.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:36,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.27ms. Allocated memory is still 153.1MB. Free memory was 123.4MB in the beginning and 110.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:49:36,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.46ms. Allocated memory is still 153.1MB. Free memory was 110.9MB in the beginning and 108.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:49:36,326 INFO L158 Benchmark]: Boogie Preprocessor took 58.33ms. Allocated memory is still 153.1MB. Free memory was 108.4MB in the beginning and 105.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:36,327 INFO L158 Benchmark]: RCFGBuilder took 483.78ms. Allocated memory is still 153.1MB. Free memory was 105.2MB in the beginning and 89.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 10:49:36,327 INFO L158 Benchmark]: TraceAbstraction took 59420.18ms. Allocated memory was 153.1MB in the beginning and 599.8MB in the end (delta: 446.7MB). Free memory was 88.8MB in the beginning and 459.7MB in the end (delta: -370.9MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. [2023-11-26 10:49:36,328 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 599.8MB. Free memory is still 459.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:36,330 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 88.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.27ms. Allocated memory is still 153.1MB. Free memory was 123.4MB in the beginning and 110.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.46ms. Allocated memory is still 153.1MB. Free memory was 110.9MB in the beginning and 108.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.33ms. Allocated memory is still 153.1MB. Free memory was 108.4MB in the beginning and 105.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.78ms. Allocated memory is still 153.1MB. Free memory was 105.2MB in the beginning and 89.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 59420.18ms. Allocated memory was 153.1MB in the beginning and 599.8MB in the end (delta: 446.7MB). Free memory was 88.8MB in the beginning and 459.7MB in the end (delta: -370.9MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 599.8MB. Free memory is still 459.7MB. 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 someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 73. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] unsigned char var_1_7 = 0; [L24] double var_1_8 = 15.6; [L25] double var_1_9 = 15.4; [L26] double var_1_10 = 32.2; [L27] unsigned char var_1_12 = 1; [L28] signed short int var_1_13 = 256; [L29] float var_1_14 = 5.75; [L30] float var_1_15 = 8.6; [L31] unsigned char last_1_var_1_7 = 0; [L32] signed short int last_1_var_1_13 = 256; [L84] isInitial = 1 [L85] FCALL initially() [L86] COND TRUE 1 [L87] CALL updateLastVariables() [L76] last_1_var_1_7 = var_1_7 [L77] last_1_var_1_13 = var_1_13 [L87] RET updateLastVariables() [L88] CALL updateVariables() [L61] var_1_8 = __VERIFIER_nondet_double() [L62] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L62] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L63] var_1_9 = __VERIFIER_nondet_double() [L64] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L64] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L65] var_1_10 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L66] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L67] var_1_12 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L68] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L69] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L69] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_15=43/5, var_1_1=32, var_1_7=0] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_15=43/5, var_1_1=32, var_1_7=0] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L88] RET updateVariables() [L89] CALL step() [L36] COND TRUE (last_1_var_1_13 + ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))) < (last_1_var_1_13 * last_1_var_1_13) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L37] COND FALSE !(last_1_var_1_13 < (last_1_var_1_13 - last_1_var_1_13)) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L45] COND TRUE \read(var_1_12) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L46] COND TRUE (var_1_14 - var_1_15) >= ((var_1_8 + var_1_10) + var_1_9) [L47] var_1_13 = ((((var_1_1) > (var_1_1)) ? (var_1_1) : (var_1_1))) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L52] COND TRUE ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) <= var_1_10 VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L53] COND FALSE !(last_1_var_1_7 && (var_1_1 >= var_1_1)) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L89] RET step() [L90] CALL, EXPR property() [L80-L81] return ((((last_1_var_1_13 + ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))) < (last_1_var_1_13 * last_1_var_1_13)) ? ((last_1_var_1_13 < (last_1_var_1_13 - last_1_var_1_13)) ? ((last_1_var_1_13 != (((((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < 0 ) ? -((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) : ((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))))) ? (var_1_1 == ((unsigned short int) last_1_var_1_13)) : 1) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_13))) && ((((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) <= var_1_10) ? ((last_1_var_1_7 && (var_1_1 >= var_1_1)) ? (var_1_7 == ((unsigned char) 0)) : 1) : (var_1_7 == ((unsigned char) var_1_12)))) && (var_1_12 ? (((var_1_14 - var_1_15) >= ((var_1_8 + var_1_10) + var_1_9)) ? (var_1_13 == ((signed short int) ((((var_1_1) > (var_1_1)) ? (var_1_1) : (var_1_1))))) : (var_1_13 == ((signed short int) var_1_1))) : 1) ; [L90] RET, EXPR property() [L90] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.3s, OverallIterations: 6, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 374 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 371 mSDsluCounter, 670 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 482 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 188 mSDtfsCounter, 372 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 429 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=5, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 111 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 31.9s InterpolantComputationTime, 351 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 392 ConstructedInterpolants, 0 QuantifiedInterpolants, 2180 SizeOfPredicates, 20 NumberOfNonLiveVariables, 700 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 636/672 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 [2023-11-26 10:49:36,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f995a4-1add-4540-beb7-4b1ac401ce4c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0