./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e723e72a166ac6fb1b462e1c13b91930c5f4e10bc44198831987bd0b753e97c5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:52:01,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:52:01,488 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:52:01,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:52:01,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:52:01,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:52:01,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:52:01,540 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:52:01,541 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:52:01,546 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:52:01,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:52:01,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:52:01,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:52:01,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:52:01,551 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:52:01,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:52:01,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:52:01,553 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:52:01,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:52:01,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:52:01,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:52:01,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:52:01,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:52:01,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:52:01,558 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:52:01,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:52:01,558 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:52:01,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:52:01,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:52:01,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:52:01,562 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:52:01,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:52:01,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:52:01,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:52:01,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:52:01,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:52:01,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:52:01,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:52:01,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:52:01,564 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:52:01,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:52:01,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:52:01,565 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e723e72a166ac6fb1b462e1c13b91930c5f4e10bc44198831987bd0b753e97c5 [2023-11-26 11:52:01,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:52:01,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:52:01,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:52:01,870 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:52:01,870 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:52:01,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2023-11-26 11:52:04,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:52:05,113 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:52:05,115 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2023-11-26 11:52:05,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/data/06c8aa1d6/de23e6c2694e471a80e13a8105a3e29c/FLAGa83c9b02d [2023-11-26 11:52:05,144 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/data/06c8aa1d6/de23e6c2694e471a80e13a8105a3e29c [2023-11-26 11:52:05,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:52:05,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:52:05,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:52:05,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:52:05,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:52:05,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a11a825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05, skipping insertion in model container [2023-11-26 11:52:05,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:52:05,462 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c[2416,2429] [2023-11-26 11:52:05,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:52:05,479 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:52:05,545 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c[2416,2429] [2023-11-26 11:52:05,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:52:05,562 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:52:05,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05 WrapperNode [2023-11-26 11:52:05,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:52:05,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:52:05,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:52:05,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:52:05,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,635 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 215 [2023-11-26 11:52:05,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:52:05,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:52:05,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:52:05,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:52:05,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,698 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2023-11-26 11:52:05,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:52:05,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:52:05,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:52:05,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:52:05,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (1/1) ... [2023-11-26 11:52:05,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:52:05,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:05,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:52:05,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:52:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:52:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:52:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:52:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:52:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:52:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:52:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 11:52:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 11:52:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-26 11:52:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-26 11:52:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:52:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:52:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:52:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:52:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-26 11:52:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-26 11:52:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-26 11:52:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-26 11:52:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:52:05,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:52:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:52:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:52:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:52:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:52:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:52:05,942 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:52:05,945 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:52:06,430 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:52:06,465 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:52:06,466 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 11:52:06,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:06 BoogieIcfgContainer [2023-11-26 11:52:06,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:52:06,471 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:52:06,471 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:52:06,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:52:06,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:52:05" (1/3) ... [2023-11-26 11:52:06,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a09b72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:06, skipping insertion in model container [2023-11-26 11:52:06,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:05" (2/3) ... [2023-11-26 11:52:06,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a09b72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:06, skipping insertion in model container [2023-11-26 11:52:06,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:06" (3/3) ... [2023-11-26 11:52:06,480 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b.c [2023-11-26 11:52:06,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:52:06,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:52:06,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:52:06,573 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36229d3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:52:06,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:52:06,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 60 states have (on average 1.75) internal successors, (105), 61 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 11:52:06,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:06,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:06,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:06,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:06,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1996991689, now seen corresponding path program 1 times [2023-11-26 11:52:06,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:06,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736295436] [2023-11-26 11:52:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:06,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:06,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736295436] [2023-11-26 11:52:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736295436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:06,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:06,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:52:06,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936726664] [2023-11-26 11:52:06,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:06,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:52:06,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:06,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:52:06,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:52:06,869 INFO L87 Difference]: Start difference. First operand has 62 states, 60 states have (on average 1.75) internal successors, (105), 61 states have internal predecessors, (105), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:06,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:06,915 INFO L93 Difference]: Finished difference Result 123 states and 209 transitions. [2023-11-26 11:52:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:52:06,918 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2023-11-26 11:52:06,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:06,928 INFO L225 Difference]: With dead ends: 123 [2023-11-26 11:52:06,929 INFO L226 Difference]: Without dead ends: 60 [2023-11-26 11:52:06,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:52:06,938 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:06,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-26 11:52:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-26 11:52:06,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.6271186440677967) internal successors, (96), 59 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 96 transitions. [2023-11-26 11:52:06,981 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 96 transitions. Word has length 16 [2023-11-26 11:52:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 96 transitions. [2023-11-26 11:52:06,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 96 transitions. [2023-11-26 11:52:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 11:52:06,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:06,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:06,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:52:06,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:06,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:06,986 INFO L85 PathProgramCache]: Analyzing trace with hash -461110692, now seen corresponding path program 1 times [2023-11-26 11:52:06,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:06,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988853155] [2023-11-26 11:52:06,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:06,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:07,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:07,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988853155] [2023-11-26 11:52:07,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988853155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:07,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:07,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:52:07,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907256598] [2023-11-26 11:52:07,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:07,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:07,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:07,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:07,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:07,624 INFO L87 Difference]: Start difference. First operand 60 states and 96 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2023-11-26 11:52:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:07,682 INFO L93 Difference]: Finished difference Result 68 states and 105 transitions. [2023-11-26 11:52:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:07,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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 [2023-11-26 11:52:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:07,685 INFO L225 Difference]: With dead ends: 68 [2023-11-26 11:52:07,685 INFO L226 Difference]: Without dead ends: 64 [2023-11-26 11:52:07,686 INFO L412 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 [2023-11-26 11:52:07,687 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 2 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:07,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 260 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:07,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-26 11:52:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2023-11-26 11:52:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.596774193548387) internal successors, (99), 62 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 99 transitions. [2023-11-26 11:52:07,698 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 99 transitions. Word has length 18 [2023-11-26 11:52:07,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:07,698 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 99 transitions. [2023-11-26 11:52:07,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2023-11-26 11:52:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 99 transitions. [2023-11-26 11:52:07,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 11:52:07,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:07,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:07,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:52:07,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:07,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1408150297, now seen corresponding path program 1 times [2023-11-26 11:52:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:07,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29762405] [2023-11-26 11:52:07,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:07,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:07,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:52:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:52:07,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:52:07,900 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:52:07,902 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:52:07,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:52:07,908 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 11:52:07,913 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:52:07,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-11-26 11:52:07,941 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-26 11:52:07,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:52:07 BoogieIcfgContainer [2023-11-26 11:52:07,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:52:07,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:52:07,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:52:07,968 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:52:07,969 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:06" (3/4) ... [2023-11-26 11:52:07,971 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:52:07,972 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:52:07,973 INFO L158 Benchmark]: Toolchain (without parser) took 2820.89ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 93.6MB in the end (delta: 34.8MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2023-11-26 11:52:07,974 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 132.1MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:52:07,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.32ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 115.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:52:07,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.55ms. Allocated memory is still 174.1MB. Free memory was 115.8MB in the beginning and 113.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:52:07,982 INFO L158 Benchmark]: Boogie Preprocessor took 106.36ms. Allocated memory is still 174.1MB. Free memory was 113.7MB in the beginning and 110.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:52:07,983 INFO L158 Benchmark]: RCFGBuilder took 714.02ms. Allocated memory is still 174.1MB. Free memory was 110.3MB in the beginning and 86.4MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-26 11:52:07,986 INFO L158 Benchmark]: TraceAbstraction took 1496.49ms. Allocated memory is still 174.1MB. Free memory was 85.7MB in the beginning and 94.5MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:52:07,987 INFO L158 Benchmark]: Witness Printer took 5.18ms. Allocated memory is still 174.1MB. Free memory was 94.5MB in the beginning and 93.6MB in the end (delta: 959.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:52:07,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 132.1MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.32ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 115.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.55ms. Allocated memory is still 174.1MB. Free memory was 115.8MB in the beginning and 113.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.36ms. Allocated memory is still 174.1MB. Free memory was 113.7MB in the beginning and 110.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 714.02ms. Allocated memory is still 174.1MB. Free memory was 110.3MB in the beginning and 86.4MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1496.49ms. Allocated memory is still 174.1MB. Free memory was 85.7MB in the beginning and 94.5MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.18ms. Allocated memory is still 174.1MB. Free memory was 94.5MB in the beginning and 93.6MB in the end (delta: 959.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 108]: 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 bitwiseOr at line 93, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; [L103] double x = -1.0 / 0.0; [L104] CALL, EXPR floor_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014] [L22] ieee_double_shape_type ew_u; [L23] EXPR ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] EXPR (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] EXPR (i1) = ew_u.parts.lsw [L21-L26] { ieee_double_shape_type ew_u; ew_u.value = (x); (i0) = ew_u.parts.msw; (i1) = ew_u.parts.lsw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014] [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014] [L28] COND FALSE !(j0 < 20) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014] [L49] COND TRUE j0 > 51 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014] [L50] COND TRUE j0 == 0x400 [L51] return x + x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1048576, i1=-1, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014] [L104] RET, EXPR floor_double(x) [L104] double res = floor_double(x); [L107] CALL, EXPR isinf_double(res) [L83] __int32_t hx, lx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013] [L85] ieee_double_shape_type ew_u; [L86] EXPR ew_u.value = (x) [L87] EXPR ew_u.parts.msw [L87] EXPR (hx) = ew_u.parts.msw [L88] EXPR ew_u.parts.lsw [L88] EXPR (lx) = ew_u.parts.lsw [L84-L89] { ieee_double_shape_type ew_u; ew_u.value = (x); (hx) = ew_u.parts.msw; (lx) = ew_u.parts.lsw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013] [L90] hx &= 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013] [L91] EXPR lx | (-lx) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013] [L91] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L92] hx = 0x7ff00000 - hx VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, lx=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013] [L93] EXPR hx | (-hx) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, lx=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013] [L93] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L107] RET, EXPR isinf_double(res) [L107] COND TRUE !isinf_double(res) [L108] reach_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 355 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 186 mSDtfsCounter, 30 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=63occurred in iteration=2, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 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 [2023-11-26 11:52:08,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e723e72a166ac6fb1b462e1c13b91930c5f4e10bc44198831987bd0b753e97c5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:52:10,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:52:10,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:52:10,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:52:10,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:52:10,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:52:10,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:52:10,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:52:10,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:52:10,936 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:52:10,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:52:10,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:52:10,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:52:10,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:52:10,940 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:52:10,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:52:10,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:52:10,942 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:52:10,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:52:10,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:52:10,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:52:10,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:52:10,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:52:10,946 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:52:10,946 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:52:10,947 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:52:10,947 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:52:10,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:52:10,948 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:52:10,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:52:10,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:52:10,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:52:10,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:52:10,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:52:10,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:52:10,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:52:10,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:52:10,953 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:52:10,953 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:52:10,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:52:10,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:52:10,954 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:52:10,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:52:10,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:52:10,955 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:52:10,955 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e723e72a166ac6fb1b462e1c13b91930c5f4e10bc44198831987bd0b753e97c5 [2023-11-26 11:52:11,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:52:11,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:52:11,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:52:11,427 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:52:11,428 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:52:11,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2023-11-26 11:52:14,645 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:52:14,977 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:52:14,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2023-11-26 11:52:14,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/data/3583d95e5/e30ee56a102b4f81b17d765b93320fb4/FLAG704abba50 [2023-11-26 11:52:15,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/data/3583d95e5/e30ee56a102b4f81b17d765b93320fb4 [2023-11-26 11:52:15,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:52:15,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:52:15,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:52:15,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:52:15,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:52:15,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2bf4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15, skipping insertion in model container [2023-11-26 11:52:15,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:52:15,236 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c[2416,2429] [2023-11-26 11:52:15,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:52:15,267 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:52:15,313 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c[2416,2429] [2023-11-26 11:52:15,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:52:15,342 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:52:15,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15 WrapperNode [2023-11-26 11:52:15,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:52:15,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:52:15,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:52:15,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:52:15,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,422 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 121 [2023-11-26 11:52:15,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:52:15,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:52:15,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:52:15,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:52:15,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,444 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,512 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2023-11-26 11:52:15,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:52:15,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:52:15,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:52:15,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:52:15,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (1/1) ... [2023-11-26 11:52:15,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:52:15,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:15,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:52:15,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:52:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:52:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-26 11:52:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-26 11:52:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-26 11:52:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-11-26 11:52:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-26 11:52:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-26 11:52:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-26 11:52:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-11-26 11:52:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:52:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 11:52:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 11:52:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 11:52:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:52:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 11:52:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 11:52:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 11:52:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 11:52:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:52:15,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:52:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 11:52:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 11:52:15,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 11:52:15,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 11:52:15,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:52:15,818 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:52:15,821 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:52:17,264 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:52:17,299 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:52:17,299 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 11:52:17,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:17 BoogieIcfgContainer [2023-11-26 11:52:17,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:52:17,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:52:17,305 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:52:17,308 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:52:17,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:52:15" (1/3) ... [2023-11-26 11:52:17,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b972748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:17, skipping insertion in model container [2023-11-26 11:52:17,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:52:15" (2/3) ... [2023-11-26 11:52:17,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b972748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:17, skipping insertion in model container [2023-11-26 11:52:17,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:17" (3/3) ... [2023-11-26 11:52:17,312 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b.c [2023-11-26 11:52:17,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:52:17,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:52:17,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:52:17,393 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@341f4fe1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:52:17,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:52:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.71875) internal successors, (55), 33 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 11:52:17,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:17,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:17,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:17,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash 753764031, now seen corresponding path program 1 times [2023-11-26 11:52:17,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:52:17,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964602395] [2023-11-26 11:52:17,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:17,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:17,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:52:17,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:52:17,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 11:52:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:17,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:52:17,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:17,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:17,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:52:17,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964602395] [2023-11-26 11:52:17,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964602395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:17,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:17,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:52:17,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923677998] [2023-11-26 11:52:17,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:17,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:52:17,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:52:17,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:52:17,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:52:17,648 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.71875) internal successors, (55), 33 states have internal predecessors, (55), 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) [2023-11-26 11:52:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:17,685 INFO L93 Difference]: Finished difference Result 67 states and 109 transitions. [2023-11-26 11:52:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:52:17,688 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 [2023-11-26 11:52:17,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:17,697 INFO L225 Difference]: With dead ends: 67 [2023-11-26 11:52:17,698 INFO L226 Difference]: Without dead ends: 32 [2023-11-26 11:52:17,701 INFO L412 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 [2023-11-26 11:52:17,705 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:17,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:52:17,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-26 11:52:17,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-26 11:52:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:17,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 46 transitions. [2023-11-26 11:52:17,747 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 46 transitions. Word has length 11 [2023-11-26 11:52:17,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:17,747 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 46 transitions. [2023-11-26 11:52:17,747 INFO L496 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) [2023-11-26 11:52:17,748 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2023-11-26 11:52:17,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 11:52:17,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:17,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:17,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-26 11:52:17,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:17,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:17,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:17,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1037829936, now seen corresponding path program 1 times [2023-11-26 11:52:17,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:52:17,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334956834] [2023-11-26 11:52:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:17,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:17,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:52:17,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:52:18,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 11:52:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:18,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:52:18,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:18,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:18,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:52:18,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334956834] [2023-11-26 11:52:18,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334956834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:18,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:18,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:52:18,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293842384] [2023-11-26 11:52:18,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:18,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:52:18,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:52:18,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:52:18,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:52:18,479 INFO L87 Difference]: Start difference. First operand 32 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2023-11-26 11:52:18,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:18,860 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2023-11-26 11:52:18,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:52:18,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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 [2023-11-26 11:52:18,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:18,862 INFO L225 Difference]: With dead ends: 39 [2023-11-26 11:52:18,862 INFO L226 Difference]: Without dead ends: 14 [2023-11-26 11:52:18,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:52:18,864 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:18,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:52:18,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-26 11:52:18,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-26 11:52:18,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2023-11-26 11:52:18,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2023-11-26 11:52:18,869 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2023-11-26 11:52:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:18,869 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2023-11-26 11:52:18,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2023-11-26 11:52:18,870 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2023-11-26 11:52:18,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 11:52:18,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:18,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:18,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:19,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:19,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:19,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:19,077 INFO L85 PathProgramCache]: Analyzing trace with hash 726174170, now seen corresponding path program 1 times [2023-11-26 11:52:19,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:52:19,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587909565] [2023-11-26 11:52:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:19,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:19,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:52:19,079 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:52:19,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:52:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:19,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:52:19,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:19,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:19,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:19,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:52:19,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587909565] [2023-11-26 11:52:19,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587909565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:19,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:19,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:52:19,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315983720] [2023-11-26 11:52:19,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:19,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:52:19,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:52:19,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:52:19,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:52:19,606 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) [2023-11-26 11:52:19,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:19,973 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2023-11-26 11:52:19,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:52:19,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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 [2023-11-26 11:52:19,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:19,973 INFO L225 Difference]: With dead ends: 14 [2023-11-26 11:52:19,973 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:52:19,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:52:19,975 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:19,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:52:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:52:19,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:52:19,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:52:19,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-26 11:52:19,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:19,978 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:52:19,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) [2023-11-26 11:52:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:52:19,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:52:19,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:52:19,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:20,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:20,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:52:20,260 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 67) no Hoare annotation was computed. [2023-11-26 11:52:20,260 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 96 113) no Hoare annotation was computed. [2023-11-26 11:52:20,260 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 71) no Hoare annotation was computed. [2023-11-26 11:52:20,260 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 48) no Hoare annotation was computed. [2023-11-26 11:52:20,260 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2023-11-26 11:52:20,261 INFO L895 garLoopResultBuilder]: At program point L21-2(lines 21 26) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start_floor_double_~x#1|)) [2023-11-26 11:52:20,261 INFO L899 garLoopResultBuilder]: For program point L21-3(lines 21 26) no Hoare annotation was computed. [2023-11-26 11:52:20,261 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:52:20,261 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 37) no Hoare annotation was computed. [2023-11-26 11:52:20,261 INFO L899 garLoopResultBuilder]: For program point floor_double_returnLabel#1(lines 18 79) no Hoare annotation was computed. [2023-11-26 11:52:20,261 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 77) no Hoare annotation was computed. [2023-11-26 11:52:20,262 INFO L895 garLoopResultBuilder]: At program point L72-1(lines 72 77) the Hoare annotation is: false [2023-11-26 11:52:20,262 INFO L899 garLoopResultBuilder]: For program point L72-2(lines 72 77) no Hoare annotation was computed. [2023-11-26 11:52:20,262 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2023-11-26 11:52:20,262 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 36) no Hoare annotation was computed. [2023-11-26 11:52:20,262 INFO L899 garLoopResultBuilder]: For program point L64-2(lines 64 65) no Hoare annotation was computed. [2023-11-26 11:52:20,262 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2023-11-26 11:52:20,263 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2023-11-26 11:52:20,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2023-11-26 11:52:20,263 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 71) no Hoare annotation was computed. [2023-11-26 11:52:20,263 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 110) no Hoare annotation was computed. [2023-11-26 11:52:20,263 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 36) no Hoare annotation was computed. [2023-11-26 11:52:20,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:52:20,263 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 70) no Hoare annotation was computed. [2023-11-26 11:52:20,264 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2023-11-26 11:52:20,264 INFO L899 garLoopResultBuilder]: For program point L108(line 108) no Hoare annotation was computed. [2023-11-26 11:52:20,264 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 47) no Hoare annotation was computed. [2023-11-26 11:52:20,264 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 68) no Hoare annotation was computed. [2023-11-26 11:52:20,264 INFO L899 garLoopResultBuilder]: For program point L59-1(lines 59 68) no Hoare annotation was computed. [2023-11-26 11:52:20,264 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 84 89) no Hoare annotation was computed. [2023-11-26 11:52:20,265 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 89) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse1 .cse1)))) (and (= .cse0 |ULTIMATE.start_isinf_double_~x#1|) (= .cse0 |ULTIMATE.start_floor_double_#res#1|))) [2023-11-26 11:52:20,265 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 84 89) no Hoare annotation was computed. [2023-11-26 11:52:20,265 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2023-11-26 11:52:20,265 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2023-11-26 11:52:20,272 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 11:52:20,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:52:20,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-26 11:52:20,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-26 11:52:20,295 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-26 11:52:20,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:52:20 BoogieIcfgContainer [2023-11-26 11:52:20,298 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:52:20,304 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:52:20,304 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:52:20,304 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:52:20,305 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:17" (3/4) ... [2023-11-26 11:52:20,308 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:52:20,321 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-26 11:52:20,322 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-26 11:52:20,322 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:52:20,323 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:52:20,428 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:52:20,429 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:52:20,429 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:52:20,430 INFO L158 Benchmark]: Toolchain (without parser) took 5415.90ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 55.9MB in the beginning and 62.4MB in the end (delta: -6.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2023-11-26 11:52:20,430 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:52:20,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.60ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 43.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:52:20,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.33ms. Allocated memory is still 79.7MB. Free memory was 43.2MB in the beginning and 41.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:52:20,431 INFO L158 Benchmark]: Boogie Preprocessor took 130.75ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 41.3MB in the beginning and 76.7MB in the end (delta: -35.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:52:20,432 INFO L158 Benchmark]: RCFGBuilder took 1743.23ms. Allocated memory is still 98.6MB. Free memory was 76.7MB in the beginning and 58.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:52:20,432 INFO L158 Benchmark]: TraceAbstraction took 2993.65ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 67.9MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:52:20,432 INFO L158 Benchmark]: Witness Printer took 125.40ms. Allocated memory is still 98.6MB. Free memory was 67.9MB in the beginning and 62.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:52:20,434 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.60ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 43.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.33ms. Allocated memory is still 79.7MB. Free memory was 43.2MB in the beginning and 41.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.75ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 41.3MB in the beginning and 76.7MB in the end (delta: -35.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1743.23ms. Allocated memory is still 98.6MB. Free memory was 76.7MB in the beginning and 58.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2993.65ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 67.9MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 125.40ms. Allocated memory is still 98.6MB. Free memory was 67.9MB in the beginning and 62.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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: 108]: 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, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 56 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 51 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 7 QuantifiedInterpolants, 347 SizeOfPredicates, 17 NumberOfNonLiveVariables, 151 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-26 11:52:20,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e517cf4-4164-452b-a72b-75cb3ec184dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE