./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1072b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd --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 e7dcfadaf395f5e1f003958201bf3509e8bacbad38ee9464456c3349790c2dc9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:56:36,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:56:36,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:56:36,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:56:36,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:56:36,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:56:36,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:56:36,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:56:36,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:56:36,939 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:56:36,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:56:36,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:56:36,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:56:36,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:56:36,940 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:56:36,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:56:36,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:56:36,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:56:36,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:56:36,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:56:36,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:56:36,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:56:36,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:56:36,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:56:36,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:56:36,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:56:36,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:56:36,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:56:36,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:56:36,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:56:36,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:56:36,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:56:36,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:56:36,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:56:36,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:56:36,943 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:56:36,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:56:36,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:56:36,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:56:36,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:56:36,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:56:36,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:56:36,944 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd 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 -> e7dcfadaf395f5e1f003958201bf3509e8bacbad38ee9464456c3349790c2dc9 [2024-11-13 12:56:37,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:56:37,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:56:37,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:56:37,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:56:37,394 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:56:37,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/float-newlib/double_req_bl_1072b.c Unable to find full path for "g++" [2024-11-13 12:56:39,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:56:39,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:56:39,937 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/sv-benchmarks/c/float-newlib/double_req_bl_1072b.c [2024-11-13 12:56:39,945 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/data/5af8159ec/6f40c75762d742db8bb66dd8c7283dea/FLAG4307311e0 [2024-11-13 12:56:39,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/data/5af8159ec/6f40c75762d742db8bb66dd8c7283dea [2024-11-13 12:56:39,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:56:39,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:56:39,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:56:39,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:56:39,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:56:39,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:56:39" (1/1) ... [2024-11-13 12:56:39,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fd75c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:39, skipping insertion in model container [2024-11-13 12:56:39,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:56:39" (1/1) ... [2024-11-13 12:56:39,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:56:40,228 WARN L250 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_80d6f09a-db1e-43ad-99e0-88cc7c00944c/sv-benchmarks/c/float-newlib/double_req_bl_1072b.c[2110,2123] [2024-11-13 12:56:40,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:56:40,247 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:56:40,288 WARN L250 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_80d6f09a-db1e-43ad-99e0-88cc7c00944c/sv-benchmarks/c/float-newlib/double_req_bl_1072b.c[2110,2123] [2024-11-13 12:56:40,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:56:40,309 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:56:40,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40 WrapperNode [2024-11-13 12:56:40,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:56:40,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:56:40,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:56:40,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:56:40,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,380 INFO L138 Inliner]: procedures = 17, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 152 [2024-11-13 12:56:40,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:56:40,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:56:40,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:56:40,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:56:40,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,427 INFO L175 MemorySlicer]: Split 16 memory accesses to 6 slices as follows [2, 3, 3, 3, 2, 3]. 19 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 2, 2, 2, 1, 1]. [2024-11-13 12:56:40,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:56:40,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:56:40,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:56:40,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:56:40,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (1/1) ... [2024-11-13 12:56:40,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:56:40,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:56:40,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:56:40,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:56:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:56:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:56:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 12:56:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 12:56:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 12:56:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 12:56:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 12:56:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 12:56:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-13 12:56:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-13 12:56:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-13 12:56:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-13 12:56:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-13 12:56:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-13 12:56:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-13 12:56:40,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-13 12:56:40,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-13 12:56:40,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-13 12:56:40,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:56:40,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:56:40,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 12:56:40,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 12:56:40,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 12:56:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 12:56:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 12:56:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 12:56:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 12:56:40,741 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:56:40,744 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:56:41,183 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 12:56:41,183 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:56:41,201 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:56:41,202 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-13 12:56:41,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:56:41 BoogieIcfgContainer [2024-11-13 12:56:41,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:56:41,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:56:41,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:56:41,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:56:41,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:56:39" (1/3) ... [2024-11-13 12:56:41,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649a5272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:56:41, skipping insertion in model container [2024-11-13 12:56:41,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:40" (2/3) ... [2024-11-13 12:56:41,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649a5272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:56:41, skipping insertion in model container [2024-11-13 12:56:41,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:56:41" (3/3) ... [2024-11-13 12:56:41,217 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072b.c [2024-11-13 12:56:41,245 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:56:41,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1072b.c that has 1 procedures, 47 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-13 12:56:41,322 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:56:41,337 INFO L333 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, 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;@47a15e1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:56:41,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:56:41,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6) internal successors, (72), 46 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:41,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 12:56:41,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:41,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:41,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:56:41,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1994525181, now seen corresponding path program 1 times [2024-11-13 12:56:41,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:56:41,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755550146] [2024-11-13 12:56:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:41,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:56:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:56:41,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:56:41,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755550146] [2024-11-13 12:56:41,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755550146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:56:41,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:56:41,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:56:41,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117504628] [2024-11-13 12:56:41,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:56:41,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 12:56:41,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:56:41,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 12:56:41,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 12:56:41,635 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6) internal successors, (72), 46 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:41,665 INFO L93 Difference]: Finished difference Result 92 states and 142 transitions. [2024-11-13 12:56:41,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:56:41,670 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-13 12:56:41,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:41,680 INFO L225 Difference]: With dead ends: 92 [2024-11-13 12:56:41,680 INFO L226 Difference]: Without dead ends: 44 [2024-11-13 12:56:41,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 12:56:41,692 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:41,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:56:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-13 12:56:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-13 12:56:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:41,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2024-11-13 12:56:41,742 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 13 [2024-11-13 12:56:41,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:56:41,743 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2024-11-13 12:56:41,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:41,744 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2024-11-13 12:56:41,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 12:56:41,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:41,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:41,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:56:41,748 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:56:41,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:41,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1043996896, now seen corresponding path program 1 times [2024-11-13 12:56:41,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:56:41,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787767756] [2024-11-13 12:56:41,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:41,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:56:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:42,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:56:42,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:56:42,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787767756] [2024-11-13 12:56:42,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787767756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:56:42,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:56:42,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:56:42,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322948889] [2024-11-13 12:56:42,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:56:42,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:56:42,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:56:42,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:56:42,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:56:42,071 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:42,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:42,161 INFO L93 Difference]: Finished difference Result 78 states and 104 transitions. [2024-11-13 12:56:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:56:42,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-13 12:56:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:42,163 INFO L225 Difference]: With dead ends: 78 [2024-11-13 12:56:42,163 INFO L226 Difference]: Without dead ends: 47 [2024-11-13 12:56:42,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:56:42,164 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 1 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:42,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 148 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:56:42,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-13 12:56:42,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-13 12:56:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:42,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2024-11-13 12:56:42,176 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 14 [2024-11-13 12:56:42,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:56:42,179 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2024-11-13 12:56:42,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2024-11-13 12:56:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 12:56:42,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:42,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:42,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:56:42,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:56:42,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:42,182 INFO L85 PathProgramCache]: Analyzing trace with hash -301330366, now seen corresponding path program 1 times [2024-11-13 12:56:42,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:56:42,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36380764] [2024-11-13 12:56:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:42,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:56:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:56:42,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:56:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:56:42,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:56:42,365 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:56:42,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 12:56:42,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:56:42,374 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 12:56:42,397 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:56:42,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:56:42 BoogieIcfgContainer [2024-11-13 12:56:42,401 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:56:42,402 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:56:42,402 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:56:42,402 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:56:42,403 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:56:41" (3/4) ... [2024-11-13 12:56:42,406 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 12:56:42,407 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:56:42,408 INFO L158 Benchmark]: Toolchain (without parser) took 2442.70ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 75.8MB in the end (delta: 16.9MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-11-13 12:56:42,408 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 75.2MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:56:42,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.13ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.6MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:56:42,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.07ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 78.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:56:42,409 INFO L158 Benchmark]: Boogie Preprocessor took 75.93ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 76.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:56:42,410 INFO L158 Benchmark]: RCFGBuilder took 743.04ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 59.6MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 12:56:42,410 INFO L158 Benchmark]: TraceAbstraction took 1193.02ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 75.8MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:56:42,410 INFO L158 Benchmark]: Witness Printer took 5.17ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 75.8MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:56:42,412 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 75.2MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.13ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.6MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.07ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 78.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.93ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 76.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 743.04ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 59.6MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1193.02ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 75.8MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.17ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 75.8MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 88]: 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 someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 87. Possible FailurePath: [L83] double x = 0.0; [L84] CALL, EXPR trunc_double(x) [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; VAL [x=0] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 VAL [lsw=6441402369, msw=2146435072, signbit=0, x=0] [L31] EXPR msw & 0x7ff00000 VAL [lsw=6441402369, msw=2146435072, signbit=0, x=0] [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND FALSE !(exponent_less_1023 < 20) [L49] COND TRUE exponent_less_1023 > 51 [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; VAL [lsw=6441402369, msw=2146435072, signbit=0, x=0] [L84] RET, EXPR trunc_double(x) [L84] double res = trunc_double(x); [L87] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=6441402378] [L87] EXPR res == 0.0 && __signbit_double(res) == 0 [L87] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L88] reach_error() VAL [res=6441402378] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 116 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 12:56:42,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd --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 e7dcfadaf395f5e1f003958201bf3509e8bacbad38ee9464456c3349790c2dc9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:56:45,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:56:45,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 12:56:45,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:56:45,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:56:45,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:56:45,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:56:45,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:56:45,548 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:56:45,549 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:56:45,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:56:45,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:56:45,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:56:45,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:56:45,550 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:56:45,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:56:45,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:56:45,551 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:56:45,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:56:45,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:56:45,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:56:45,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:56:45,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:56:45,552 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 12:56:45,552 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 12:56:45,552 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:56:45,552 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 12:56:45,552 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:56:45,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:56:45,552 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:56:45,553 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:56:45,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:56:45,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:56:45,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:56:45,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:56:45,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:56:45,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:56:45,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:56:45,554 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 12:56:45,554 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 12:56:45,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:56:45,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:56:45,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:56:45,555 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:56:45,555 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd 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 -> e7dcfadaf395f5e1f003958201bf3509e8bacbad38ee9464456c3349790c2dc9 [2024-11-13 12:56:45,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:56:45,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:56:45,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:56:45,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:56:45,990 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:56:45,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/float-newlib/double_req_bl_1072b.c Unable to find full path for "g++" [2024-11-13 12:56:47,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:56:48,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:56:48,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/sv-benchmarks/c/float-newlib/double_req_bl_1072b.c [2024-11-13 12:56:48,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/data/95d577649/e4b9f5b6daf6430693b729bd7c3de764/FLAGc9e2aa340 [2024-11-13 12:56:48,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/data/95d577649/e4b9f5b6daf6430693b729bd7c3de764 [2024-11-13 12:56:48,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:56:48,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:56:48,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:56:48,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:56:48,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:56:48,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cd9849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48, skipping insertion in model container [2024-11-13 12:56:48,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:56:48,562 WARN L250 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_80d6f09a-db1e-43ad-99e0-88cc7c00944c/sv-benchmarks/c/float-newlib/double_req_bl_1072b.c[2110,2123] [2024-11-13 12:56:48,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:56:48,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:56:48,636 WARN L250 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_80d6f09a-db1e-43ad-99e0-88cc7c00944c/sv-benchmarks/c/float-newlib/double_req_bl_1072b.c[2110,2123] [2024-11-13 12:56:48,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:56:48,663 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:56:48,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48 WrapperNode [2024-11-13 12:56:48,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:56:48,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:56:48,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:56:48,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:56:48,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,718 INFO L138 Inliner]: procedures = 20, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 108 [2024-11-13 12:56:48,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:56:48,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:56:48,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:56:48,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:56:48,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,740 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,766 INFO L175 MemorySlicer]: Split 16 memory accesses to 6 slices as follows [2, 3, 2, 3, 3, 3]. 19 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 2, 1, 2, 2, 1]. [2024-11-13 12:56:48,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:56:48,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:56:48,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:56:48,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:56:48,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (1/1) ... [2024-11-13 12:56:48,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:56:48,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:56:48,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:56:48,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:56:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:56:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-13 12:56:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-13 12:56:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-13 12:56:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-13 12:56:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-13 12:56:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-13 12:56:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 12:56:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:56:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-13 12:56:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-13 12:56:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-13 12:56:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 12:56:49,063 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:56:49,065 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:56:49,379 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-13 12:56:49,380 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:56:49,389 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:56:49,390 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-13 12:56:49,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:56:49 BoogieIcfgContainer [2024-11-13 12:56:49,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:56:49,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:56:49,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:56:49,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:56:49,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:56:48" (1/3) ... [2024-11-13 12:56:49,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3050fdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:56:49, skipping insertion in model container [2024-11-13 12:56:49,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:56:48" (2/3) ... [2024-11-13 12:56:49,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3050fdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:56:49, skipping insertion in model container [2024-11-13 12:56:49,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:56:49" (3/3) ... [2024-11-13 12:56:49,401 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072b.c [2024-11-13 12:56:49,420 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:56:49,422 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1072b.c that has 1 procedures, 28 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-13 12:56:49,550 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:56:49,579 INFO L333 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, 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;@3a42e6bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:56:49,580 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:56:49,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 27 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:49,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 12:56:49,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:49,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:49,609 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:56:49,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:49,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1774468576, now seen corresponding path program 1 times [2024-11-13 12:56:49,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:56:49,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541310950] [2024-11-13 12:56:49,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:49,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 12:56:49,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 12:56:49,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 12:56:49,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 12:56:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:49,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 12:56:49,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:56:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:56:49,794 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:56:49,795 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:56:49,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541310950] [2024-11-13 12:56:49,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541310950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:56:49,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:56:49,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:56:49,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559198212] [2024-11-13 12:56:49,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:56:49,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 12:56:49,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:56:49,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 12:56:49,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 12:56:49,826 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 27 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:49,841 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2024-11-13 12:56:49,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:56:49,843 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-13 12:56:49,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:49,849 INFO L225 Difference]: With dead ends: 54 [2024-11-13 12:56:49,850 INFO L226 Difference]: Without dead ends: 25 [2024-11-13 12:56:49,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 12:56:49,856 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:49,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:56:49,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-13 12:56:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-13 12:56:49,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-11-13 12:56:49,906 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 11 [2024-11-13 12:56:49,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:56:49,906 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-11-13 12:56:49,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-13 12:56:49,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 12:56:49,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:49,910 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:49,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 12:56:50,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 12:56:50,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:56:50,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:50,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1900577795, now seen corresponding path program 1 times [2024-11-13 12:56:50,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:56:50,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440102612] [2024-11-13 12:56:50,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:50,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 12:56:50,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 12:56:50,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 12:56:50,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 12:56:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:50,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 12:56:50,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:56:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:56:50,541 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:56:50,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:56:50,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440102612] [2024-11-13 12:56:50,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440102612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:56:50,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:56:50,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:56:50,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670168011] [2024-11-13 12:56:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:56:50,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:56:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:56:50,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:56:50,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:56:50,544 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:50,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:50,681 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2024-11-13 12:56:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:56:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-13 12:56:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:50,683 INFO L225 Difference]: With dead ends: 35 [2024-11-13 12:56:50,683 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 12:56:50,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:56:50,684 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:50,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:56:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 12:56:50,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 12:56:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-11-13 12:56:50,688 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2024-11-13 12:56:50,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:56:50,688 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-11-13 12:56:50,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-11-13 12:56:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 12:56:50,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:50,689 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:50,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 12:56:50,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 12:56:50,890 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:56:50,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:50,890 INFO L85 PathProgramCache]: Analyzing trace with hash 449085770, now seen corresponding path program 1 times [2024-11-13 12:56:50,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:56:50,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381327763] [2024-11-13 12:56:50,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:50,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 12:56:50,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 12:56:50,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 12:56:50,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 12:56:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:51,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 12:56:51,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:56:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:56:51,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:56:51,194 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:56:51,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381327763] [2024-11-13 12:56:51,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381327763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:56:51,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:56:51,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:56:51,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694125775] [2024-11-13 12:56:51,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:56:51,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:56:51,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:56:51,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:56:51,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:56:51,196 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:51,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:51,366 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2024-11-13 12:56:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:56:51,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-13 12:56:51,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:51,367 INFO L225 Difference]: With dead ends: 22 [2024-11-13 12:56:51,367 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 12:56:51,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:56:51,369 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:51,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 50 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:56:51,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 12:56:51,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 12:56:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:51,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2024-11-13 12:56:51,375 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2024-11-13 12:56:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:56:51,376 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2024-11-13 12:56:51,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2024-11-13 12:56:51,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 12:56:51,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:51,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:51,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-13 12:56:51,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 12:56:51,578 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:56:51,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash -866108673, now seen corresponding path program 1 times [2024-11-13 12:56:51,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:56:51,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659912102] [2024-11-13 12:56:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:51,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 12:56:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 12:56:51,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 12:56:51,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 12:56:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:51,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 12:56:51,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:56:51,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 10 [2024-11-13 12:56:51,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 12:56:51,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 22 [2024-11-13 12:56:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:56:52,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:56:52,692 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:56:52,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659912102] [2024-11-13 12:56:52,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659912102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:56:52,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:56:52,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 12:56:52,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272771466] [2024-11-13 12:56:52,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:56:52,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 12:56:52,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:56:52,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 12:56:52,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:56:52,698 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:53,393 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2024-11-13 12:56:53,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:56:53,394 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-13 12:56:53,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:53,394 INFO L225 Difference]: With dead ends: 19 [2024-11-13 12:56:53,394 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 12:56:53,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:56:53,396 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:53,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 53 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 12:56:53,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 12:56:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 12:56:53,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:53,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 12:56:53,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-13 12:56:53,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:56:53,400 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 12:56:53,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:56:53,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 12:56:53,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 12:56:53,404 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 12:56:53,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-13 12:56:53,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 12:56:53,608 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 12:56:53,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 12:56:53,703 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:56:53,715 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2024-11-13 12:56:53,718 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:56:53,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:56:53,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2024-11-13 12:56:53,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:56:53,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:56:53 BoogieIcfgContainer [2024-11-13 12:56:53,720 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:56:53,721 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:56:53,721 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:56:53,721 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:56:53,723 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:56:49" (3/4) ... [2024-11-13 12:56:53,725 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 12:56:53,739 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-13 12:56:53,743 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-13 12:56:53,743 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 12:56:53,743 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 12:56:53,843 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:56:53,843 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 12:56:53,844 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:56:53,845 INFO L158 Benchmark]: Toolchain (without parser) took 5534.65ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 42.5MB in the end (delta: 50.6MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-11-13 12:56:53,845 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:56:53,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.99ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 80.5MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:56:53,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.00ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:56:53,846 INFO L158 Benchmark]: Boogie Preprocessor took 92.06ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.5MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:56:53,847 INFO L158 Benchmark]: RCFGBuilder took 575.88ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 61.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 12:56:53,847 INFO L158 Benchmark]: TraceAbstraction took 4327.95ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 47.7MB in the end (delta: 12.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-11-13 12:56:53,847 INFO L158 Benchmark]: Witness Printer took 122.47ms. Allocated memory is still 117.4MB. Free memory was 47.7MB in the beginning and 42.5MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:56:53,850 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.99ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 80.5MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.00ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 92.06ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.5MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 575.88ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 61.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4327.95ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 47.7MB in the end (delta: 12.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 122.47ms. Allocated memory is still 117.4MB. Free memory was 47.7MB in the beginning and 42.5MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 88]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 182 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 67 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 21 QuantifiedInterpolants, 517 SizeOfPredicates, 15 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-13 12:56:53,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d6f09a-db1e-43ad-99e0-88cc7c00944c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE