./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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_356d25ad-2b77-4f73-abfb-24619fc38340/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 d3f5e2f61d9aede081f1a1ed7366ef26236506b858e1509a8a1bfedbe9950eac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:03:29,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:30,066 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:03:30,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:30,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:30,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:30,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:30,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:30,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:03:30,111 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:03:30,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:03:30,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:03:30,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:30,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:30,115 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:30,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:30,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:03:30,116 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:30,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:03:30,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:30,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:30,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:03:30,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:03:30,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:03:30,120 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:30,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:03:30,121 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:30,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:30,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:30,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:03:30,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:03:30,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:30,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:30,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:03:30,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:03:30,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:03:30,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:03:30,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:03:30,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:03:30,125 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:03:30,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:03:30,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:03:30,126 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_356d25ad-2b77-4f73-abfb-24619fc38340/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3f5e2f61d9aede081f1a1ed7366ef26236506b858e1509a8a1bfedbe9950eac [2023-11-26 12:03:30,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:30,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:30,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:30,495 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:30,496 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:30,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2023-11-26 12:03:33,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:33,832 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:33,834 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2023-11-26 12:03:33,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/data/97732fbbf/5f0fdad4e1584c02a2eb97a90677aa64/FLAG865e0ddbd [2023-11-26 12:03:33,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/data/97732fbbf/5f0fdad4e1584c02a2eb97a90677aa64 [2023-11-26 12:03:33,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:33,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:33,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:33,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:33,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:33,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:33" (1/1) ... [2023-11-26 12:03:33,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7631ec63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:33, skipping insertion in model container [2023-11-26 12:03:33,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:33" (1/1) ... [2023-11-26 12:03:33,934 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:34,243 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_356d25ad-2b77-4f73-abfb-24619fc38340/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c[4119,4132] [2023-11-26 12:03:34,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:34,268 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:34,332 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_356d25ad-2b77-4f73-abfb-24619fc38340/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c[4119,4132] [2023-11-26 12:03:34,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:34,350 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:34,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34 WrapperNode [2023-11-26 12:03:34,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:34,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:34,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:34,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:34,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,416 INFO L138 Inliner]: procedures = 18, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 445 [2023-11-26 12:03:34,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:34,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:34,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:34,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:34,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,458 INFO L175 MemorySlicer]: Split 21 memory accesses to 7 slices as follows [2, 5, 3, 3, 3, 3, 2]. 24 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 0, 1, 2, 1, 2, 1]. [2023-11-26 12:03:34,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:34,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:34,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:34,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:34,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:34,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:34,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:34,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:03:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:03:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:03:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:03:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 12:03:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 12:03:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 12:03:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:03:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:03:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:03:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:03:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 12:03:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 12:03:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 12:03:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 12:03:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 12:03:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-26 12:03:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-26 12:03:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-26 12:03:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-26 12:03:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-26 12:03:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-26 12:03:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-26 12:03:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-26 12:03:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-26 12:03:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-26 12:03:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-26 12:03:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-26 12:03:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:34,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:03:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:03:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:03:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:03:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 12:03:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 12:03:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 12:03:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-11-26 12:03:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-11-26 12:03:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-11-26 12:03:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-11-26 12:03:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-11-26 12:03:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-11-26 12:03:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2023-11-26 12:03:34,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:34,748 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:34,751 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:35,495 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:35,547 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:35,548 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-26 12:03:35,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:35 BoogieIcfgContainer [2023-11-26 12:03:35,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:35,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:35,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:35,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:35,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:33" (1/3) ... [2023-11-26 12:03:35,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f42181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:35, skipping insertion in model container [2023-11-26 12:03:35,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34" (2/3) ... [2023-11-26 12:03:35,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f42181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:35, skipping insertion in model container [2023-11-26 12:03:35,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:35" (3/3) ... [2023-11-26 12:03:35,561 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2023-11-26 12:03:35,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:35,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:03:35,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:35,644 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;@1258535f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:35,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:03:35,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 115 states have (on average 1.8) internal successors, (207), 116 states have internal predecessors, (207), 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 12:03:35,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 12:03:35,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:35,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:35,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:35,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:35,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1201264181, now seen corresponding path program 1 times [2023-11-26 12:03:35,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:35,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733715761] [2023-11-26 12:03:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:35,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:35,872 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 12:03:35,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:35,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733715761] [2023-11-26 12:03:35,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733715761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:35,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:35,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:35,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406720729] [2023-11-26 12:03:35,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:35,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:03:35,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:35,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:03:35,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:03:35,936 INFO L87 Difference]: Start difference. First operand has 117 states, 115 states have (on average 1.8) internal successors, (207), 116 states have internal predecessors, (207), 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 12:03:36,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:36,021 INFO L93 Difference]: Finished difference Result 233 states and 413 transitions. [2023-11-26 12:03:36,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:03:36,024 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 12:03:36,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:36,038 INFO L225 Difference]: With dead ends: 233 [2023-11-26 12:03:36,038 INFO L226 Difference]: Without dead ends: 114 [2023-11-26 12:03:36,042 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 12:03:36,047 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:36,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:03:36,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-26 12:03:36,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-11-26 12:03:36,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.6283185840707965) internal successors, (184), 113 states have internal predecessors, (184), 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 12:03:36,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 184 transitions. [2023-11-26 12:03:36,105 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 184 transitions. Word has length 16 [2023-11-26 12:03:36,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:36,105 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 184 transitions. [2023-11-26 12:03:36,106 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 12:03:36,106 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 184 transitions. [2023-11-26 12:03:36,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 12:03:36,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:36,107 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 12:03:36,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:03:36,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:36,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:36,109 INFO L85 PathProgramCache]: Analyzing trace with hash 457044195, now seen corresponding path program 1 times [2023-11-26 12:03:36,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:36,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155342287] [2023-11-26 12:03:36,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:36,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:36,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:36,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:36,445 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:03:36,447 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:03:36,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:03:36,453 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 12:03:36,457 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:03:36,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-26 12:03:36,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-26 12:03:36,491 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-26 12:03:36,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:36 BoogieIcfgContainer [2023-11-26 12:03:36,516 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:03:36,516 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:03:36,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:03:36,517 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:03:36,517 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:35" (3/4) ... [2023-11-26 12:03:36,519 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:03:36,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:03:36,523 INFO L158 Benchmark]: Toolchain (without parser) took 2646.31ms. Allocated memory is still 163.6MB. Free memory was 130.8MB in the beginning and 63.1MB in the end (delta: 67.8MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:36,523 INFO L158 Benchmark]: CDTParser took 2.09ms. Allocated memory is still 119.5MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:36,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.67ms. Allocated memory is still 163.6MB. Free memory was 130.8MB in the beginning and 116.3MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 12:03:36,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.82ms. Allocated memory is still 163.6MB. Free memory was 116.3MB in the beginning and 112.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:03:36,531 INFO L158 Benchmark]: Boogie Preprocessor took 81.15ms. Allocated memory is still 163.6MB. Free memory was 112.8MB in the beginning and 107.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:03:36,535 INFO L158 Benchmark]: RCFGBuilder took 1049.46ms. Allocated memory is still 163.6MB. Free memory was 107.9MB in the beginning and 105.0MB in the end (delta: 2.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:03:36,536 INFO L158 Benchmark]: TraceAbstraction took 964.04ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 63.1MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-26 12:03:36,536 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 163.6MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:36,541 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.09ms. Allocated memory is still 119.5MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.67ms. Allocated memory is still 163.6MB. Free memory was 130.8MB in the beginning and 116.3MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.82ms. Allocated memory is still 163.6MB. Free memory was 116.3MB in the beginning and 112.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.15ms. Allocated memory is still 163.6MB. Free memory was 112.8MB in the beginning and 107.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1049.46ms. Allocated memory is still 163.6MB. Free memory was 107.9MB in the beginning and 105.0MB in the end (delta: 2.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 964.04ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 63.1MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 163.6MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 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: 188]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] CALL isfinite_double(x) [L163] __int32_t hx; VAL [Zero_fmod={4:0}, \old(x)=4293918723, one_fmod=1, x=4293918723] [L165] ieee_double_shape_type gh_u; [L166] EXPR gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] EXPR (hx) = gh_u.parts.msw [L164-L168] { ieee_double_shape_type gh_u; gh_u.value = (x); (hx) = gh_u.parts.msw; } VAL [Zero_fmod={4:0}, \old(x)=4293918723, hx=-1048577, one_fmod=1, x=4293918723] [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L182] RET isfinite_double(x) [L182] COND TRUE isfinite_double(x) [L184] CALL, EXPR fmod_double(x, y) [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; VAL [Zero_fmod={4:0}, \old(x)=4293918723, \old(y)=4293918724, one_fmod=1, x=4293918723, y=4293918724] [L27] ieee_double_shape_type ew_u; [L28] EXPR ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] EXPR (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] EXPR (lx) = ew_u.parts.lsw [L26-L31] { ieee_double_shape_type ew_u; ew_u.value = (x); (hx) = ew_u.parts.msw; (lx) = ew_u.parts.lsw; } VAL [Zero_fmod={4:0}, \old(x)=4293918723, \old(y)=4293918724, hx=0, lx=4293918721, one_fmod=1, x=4293918723, y=4293918724] [L33] ieee_double_shape_type ew_u; [L34] EXPR ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] EXPR (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] EXPR (ly) = ew_u.parts.lsw [L32-L37] { ieee_double_shape_type ew_u; ew_u.value = (y); (hy) = ew_u.parts.msw; (ly) = ew_u.parts.lsw; } VAL [Zero_fmod={4:0}, \old(x)=4293918723, \old(y)=4293918724, hx=0, hy=-2147483648, lx=4293918721, ly=0, one_fmod=1, x=4293918723, y=4293918724] [L38] sx = hx & 0x80000000 VAL [Zero_fmod={4:0}, \old(x)=4293918723, \old(y)=4293918724, hx=0, hy=-2147483648, lx=4293918721, ly=0, one_fmod=1, sx=0, x=4293918723, y=4293918724] [L39] hx ^= sx [L40] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, \old(x)=4293918723, \old(y)=4293918724, hx=0, hy=0, lx=4293918721, ly=0, one_fmod=1, sx=0, x=4293918723, y=4293918724] [L42] EXPR hy | ly VAL [Zero_fmod={4:0}, \old(x)=4293918723, \old(y)=4293918724, hx=0, hy=0, lx=4293918721, ly=0, one_fmod=1, sx=0, x=4293918723, y=4293918724] [L42-L43] (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [Zero_fmod={4:0}, \old(x)=4293918723, \old(y)=4293918724, hx=0, hy=0, lx=4293918721, ly=0, one_fmod=1, sx=0, x=4293918723, y=4293918724] [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, \old(x)=4293918723, \old(y)=4293918724, hx=0, hy=0, lx=4293918721, ly=0, one_fmod=1, sx=0, x=4293918723, y=4293918724] [L184] RET, EXPR fmod_double(x, y) [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x VAL [Zero_fmod={4:0}, one_fmod=1, res=4293918722, x=4293918723, y=4293918724] [L188] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=4293918722, x=4293918723, y=4293918724] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 181 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 181 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 12:03:36,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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_356d25ad-2b77-4f73-abfb-24619fc38340/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 d3f5e2f61d9aede081f1a1ed7366ef26236506b858e1509a8a1bfedbe9950eac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:03:39,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:39,321 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 12:03:39,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:39,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:39,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:39,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:39,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:39,364 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:03:39,365 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:03:39,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:03:39,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:03:39,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:39,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:39,369 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:39,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:39,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:03:39,371 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:39,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:39,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:39,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:03:39,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:03:39,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:03:39,375 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:03:39,376 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:03:39,376 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:03:39,377 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:39,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:03:39,378 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:39,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:39,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:39,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:03:39,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:03:39,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:39,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:39,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:03:39,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:03:39,382 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:03:39,382 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:03:39,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:03:39,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:03:39,383 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:03:39,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:03:39,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:03:39,384 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:03:39,385 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_356d25ad-2b77-4f73-abfb-24619fc38340/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3f5e2f61d9aede081f1a1ed7366ef26236506b858e1509a8a1bfedbe9950eac [2023-11-26 12:03:39,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:39,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:39,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:39,852 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:39,852 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:39,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2023-11-26 12:03:43,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:43,348 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:43,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2023-11-26 12:03:43,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/data/91dfd5e2b/9bd2634df1b641528c9db566e54540b0/FLAGec57a92be [2023-11-26 12:03:43,387 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/data/91dfd5e2b/9bd2634df1b641528c9db566e54540b0 [2023-11-26 12:03:43,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:43,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:43,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:43,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:43,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:43,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:43,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ac5078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43, skipping insertion in model container [2023-11-26 12:03:43,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:43,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:43,769 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_356d25ad-2b77-4f73-abfb-24619fc38340/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c[4119,4132] [2023-11-26 12:03:43,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:43,803 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:43,887 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_356d25ad-2b77-4f73-abfb-24619fc38340/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c[4119,4132] [2023-11-26 12:03:43,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:43,917 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:43,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43 WrapperNode [2023-11-26 12:03:43,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:43,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:43,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:43,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:43,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:43,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,008 INFO L138 Inliner]: procedures = 21, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 243 [2023-11-26 12:03:44,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:44,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:44,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:44,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:44,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,039 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,075 INFO L175 MemorySlicer]: Split 21 memory accesses to 7 slices as follows [2, 3, 5, 2, 3, 3, 3]. 24 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 0, 1, 1, 1, 2]. [2023-11-26 12:03:44,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:44,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:44,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:44,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:44,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (1/1) ... [2023-11-26 12:03:44,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:44,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:44,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:44,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-26 12:03:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-26 12:03:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-26 12:03:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-11-26 12:03:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2023-11-26 12:03:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2023-11-26 12:03:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2023-11-26 12:03:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-26 12:03:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-26 12:03:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-26 12:03:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-11-26 12:03:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2023-11-26 12:03:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2023-11-26 12:03:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2023-11-26 12:03:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:03:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 12:03:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 12:03:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 12:03:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-26 12:03:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-26 12:03:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-26 12:03:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-11-26 12:03:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-11-26 12:03:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2023-11-26 12:03:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2023-11-26 12:03:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2023-11-26 12:03:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2023-11-26 12:03:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2023-11-26 12:03:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 12:03:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 12:03:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 12:03:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 12:03:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-26 12:03:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-26 12:03:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-26 12:03:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:44,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 12:03:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 12:03:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 12:03:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 12:03:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-26 12:03:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-26 12:03:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-26 12:03:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:44,466 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:44,468 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:51,196 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:51,229 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:51,229 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-26 12:03:51,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:51 BoogieIcfgContainer [2023-11-26 12:03:51,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:51,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:51,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:51,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:51,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:43" (1/3) ... [2023-11-26 12:03:51,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33142862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:51, skipping insertion in model container [2023-11-26 12:03:51,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:43" (2/3) ... [2023-11-26 12:03:51,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33142862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:51, skipping insertion in model container [2023-11-26 12:03:51,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:51" (3/3) ... [2023-11-26 12:03:51,239 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2023-11-26 12:03:51,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:51,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:03:51,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:51,336 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;@61b267c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:51,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:03:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.9019607843137254) internal successors, (97), 52 states have internal predecessors, (97), 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 12:03:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:03:51,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:51,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:51,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:51,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:51,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1427330066, now seen corresponding path program 1 times [2023-11-26 12:03:51,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:51,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57911423] [2023-11-26 12:03:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:51,366 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 12:03:51,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:51,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:03:51,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:03:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:52,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:03:52,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:52,375 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 12:03:52,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:52,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:52,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57911423] [2023-11-26 12:03:52,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57911423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:52,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:52,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:52,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764326643] [2023-11-26 12:03:52,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:52,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:03:52,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:52,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:03:52,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:03:52,437 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.9019607843137254) internal successors, (97), 52 states have internal predecessors, (97), 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 12:03:52,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:52,615 INFO L93 Difference]: Finished difference Result 105 states and 193 transitions. [2023-11-26 12:03:52,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:03:52,618 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 12:03:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:52,627 INFO L225 Difference]: With dead ends: 105 [2023-11-26 12:03:52,627 INFO L226 Difference]: Without dead ends: 50 [2023-11-26 12:03:52,630 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 12:03:52,634 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:52,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:03:52,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-26 12:03:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-26 12:03:52,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 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 12:03:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 76 transitions. [2023-11-26 12:03:52,671 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 76 transitions. Word has length 11 [2023-11-26 12:03:52,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:52,672 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 76 transitions. [2023-11-26 12:03:52,672 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 12:03:52,672 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 76 transitions. [2023-11-26 12:03:52,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 12:03:52,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:52,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:52,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:03:52,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:03:52,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:52,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:52,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1895229850, now seen corresponding path program 1 times [2023-11-26 12:03:52,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:52,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16149700] [2023-11-26 12:03:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:52,895 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 12:03:52,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:52,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:03:52,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:03:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:54,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-26 12:03:54,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:01,199 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 12:04:01,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:01,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:01,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16149700] [2023-11-26 12:04:01,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16149700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:01,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:01,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:04:01,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690567236] [2023-11-26 12:04:01,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:01,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:04:01,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:01,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:04:01,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=56, Unknown=1, NotChecked=0, Total=72 [2023-11-26 12:04:01,205 INFO L87 Difference]: Start difference. First operand 50 states and 76 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:06,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:04:11,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:04:23,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:04:27,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:04:31,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:04:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:32,322 INFO L93 Difference]: Finished difference Result 54 states and 79 transitions. [2023-11-26 12:04:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 12:04:32,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-26 12:04:32,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:32,324 INFO L225 Difference]: With dead ends: 54 [2023-11-26 12:04:32,324 INFO L226 Difference]: Without dead ends: 17 [2023-11-26 12:04:32,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=33, Invalid=120, Unknown=3, NotChecked=0, Total=156 [2023-11-26 12:04:32,327 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:32,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 34 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 5 Unknown, 0 Unchecked, 21.7s Time] [2023-11-26 12:04:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-26 12:04:32,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-26 12:04:32,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 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 12:04:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2023-11-26 12:04:32,333 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 14 [2023-11-26 12:04:32,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:32,334 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2023-11-26 12:04:32,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:32,334 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2023-11-26 12:04:32,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 12:04:32,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:32,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:32,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:04:32,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:04:32,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:32,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:32,555 INFO L85 PathProgramCache]: Analyzing trace with hash -396498047, now seen corresponding path program 1 times [2023-11-26 12:04:32,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:32,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313753288] [2023-11-26 12:04:32,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:32,556 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 12:04:32,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:32,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:04:32,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_356d25ad-2b77-4f73-abfb-24619fc38340/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 12:04:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 12:04:32,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:35,127 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 12:04:35,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:35,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313753288] [2023-11-26 12:04:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313753288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:35,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:35,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:04:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643194373] [2023-11-26 12:04:35,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:35,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:04:35,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:35,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:04:35,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:04:35,138 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 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)