./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:06,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:06,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:41:06,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:06,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:06,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:06,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:06,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:06,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:06,509 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:06,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:06,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:06,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:06,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:06,514 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:06,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:06,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:06,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:06,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:41:06,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:06,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:06,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:06,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:06,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:06,519 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:06,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:06,520 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:06,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:06,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:06,522 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:41:06,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:06,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:06,525 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:06,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:06,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:06,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:41:06,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:41:06,526 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:06,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:06,527 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:06,527 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:06,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:06,528 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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c [2023-11-26 10:41:06,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:06,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:06,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:06,824 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:06,825 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:06,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2023-11-26 10:41:09,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:10,177 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:10,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2023-11-26 10:41:10,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/data/852ebf540/b1e52db671fc4c74845256e759d20714/FLAGb58390791 [2023-11-26 10:41:10,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/data/852ebf540/b1e52db671fc4c74845256e759d20714 [2023-11-26 10:41:10,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:10,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:10,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:10,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:10,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:10,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e0b687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10, skipping insertion in model container [2023-11-26 10:41:10,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,244 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:10,495 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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2023-11-26 10:41:10,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:10,523 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:10,586 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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2023-11-26 10:41:10,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:10,607 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:10,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10 WrapperNode [2023-11-26 10:41:10,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:10,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:10,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:10,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:10,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,671 INFO L138 Inliner]: procedures = 16, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 172 [2023-11-26 10:41:10,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:10,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:10,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:10,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:10,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,711 INFO L175 MemorySlicer]: Split 22 memory accesses to 9 slices as follows [2, 2, 2, 2, 6, 2, 2, 2, 2]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 11 writes are split as follows [0, 1, 1, 1, 4, 1, 1, 1, 1]. [2023-11-26 10:41:10,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:10,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:10,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:10,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:10,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (1/1) ... [2023-11-26 10:41:10,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:10,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:10,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:10,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:41:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:41:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:41:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:41:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 10:41:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 10:41:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 10:41:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 10:41:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 10:41:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:41:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-26 10:41:10,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-26 10:41:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 10:41:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 10:41:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-26 10:41:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-26 10:41:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-26 10:41:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-26 10:41:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-26 10:41:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-26 10:41:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-26 10:41:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:41:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:41:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:41:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:41:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 10:41:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 10:41:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 10:41:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 10:41:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 10:41:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-26 10:41:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-26 10:41:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-26 10:41:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-26 10:41:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-26 10:41:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-26 10:41:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-26 10:41:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-11-26 10:41:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-11-26 10:41:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:41:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:41:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:41:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 10:41:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 10:41:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 10:41:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 10:41:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 10:41:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 10:41:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:41:10,980 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:10,982 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:11,330 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:11,357 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:11,358 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-11-26 10:41:11,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:11 BoogieIcfgContainer [2023-11-26 10:41:11,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:11,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:11,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:11,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:11,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:10" (1/3) ... [2023-11-26 10:41:11,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785ee31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:11, skipping insertion in model container [2023-11-26 10:41:11,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:10" (2/3) ... [2023-11-26 10:41:11,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785ee31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:11, skipping insertion in model container [2023-11-26 10:41:11,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:11" (3/3) ... [2023-11-26 10:41:11,369 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2023-11-26 10:41:11,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:11,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:41:11,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:11,457 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;@3dad27d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:11,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:41:11,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 39 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:11,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 10:41:11,472 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:11,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:11,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:11,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:11,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1655537101, now seen corresponding path program 1 times [2023-11-26 10:41:11,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:11,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907878685] [2023-11-26 10:41:11,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:11,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 10:41:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:11,773 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 10:41:11,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:11,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907878685] [2023-11-26 10:41:11,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907878685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:11,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:11,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:11,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771768052] [2023-11-26 10:41:11,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:11,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:41:11,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:11,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:41:11,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:11,840 INFO L87 Difference]: Start difference. First operand has 43 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 39 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:11,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:11,877 INFO L93 Difference]: Finished difference Result 85 states and 133 transitions. [2023-11-26 10:41:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:41:11,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-26 10:41:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:11,888 INFO L225 Difference]: With dead ends: 85 [2023-11-26 10:41:11,889 INFO L226 Difference]: Without dead ends: 41 [2023-11-26 10:41:11,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:11,896 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:11,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-26 10:41:11,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-26 10:41:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:11,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2023-11-26 10:41:11,942 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 15 [2023-11-26 10:41:11,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:11,943 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2023-11-26 10:41:11,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2023-11-26 10:41:11,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 10:41:11,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:11,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:11,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:41:11,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:11,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1947027278, now seen corresponding path program 1 times [2023-11-26 10:41:11,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:11,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703336722] [2023-11-26 10:41:11,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:11,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:12,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 10:41:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:12,100 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 10:41:12,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:12,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703336722] [2023-11-26 10:41:12,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703336722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:12,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:12,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:12,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11976161] [2023-11-26 10:41:12,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:12,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:12,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:12,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:12,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:12,106 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:12,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:12,128 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2023-11-26 10:41:12,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:12,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-26 10:41:12,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:12,130 INFO L225 Difference]: With dead ends: 44 [2023-11-26 10:41:12,130 INFO L226 Difference]: Without dead ends: 41 [2023-11-26 10:41:12,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:12,133 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:12,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-26 10:41:12,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-26 10:41:12,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2023-11-26 10:41:12,142 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 17 [2023-11-26 10:41:12,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:12,144 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2023-11-26 10:41:12,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:12,145 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2023-11-26 10:41:12,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 10:41:12,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:12,146 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:12,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:41:12,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:12,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash -793029797, now seen corresponding path program 1 times [2023-11-26 10:41:12,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:12,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937885422] [2023-11-26 10:41:12,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:12,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:12,216 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:41:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:12,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:41:12,323 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:41:12,325 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:41:12,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:41:12,332 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 10:41:12,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:41:12,370 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-26 10:41:12,371 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-26 10:41:12,371 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-26 10:41:12,372 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-26 10:41:12,372 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-26 10:41:12,372 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-26 10:41:12,373 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-26 10:41:12,374 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-26 10:41:12,374 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-26 10:41:12,374 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-26 10:41:12,374 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-26 10:41:12,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-26 10:41:12,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-26 10:41:12,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:41:12 BoogieIcfgContainer [2023-11-26 10:41:12,391 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:41:12,392 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:41:12,392 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:41:12,392 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:41:12,393 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:11" (3/4) ... [2023-11-26 10:41:12,394 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:41:12,395 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:41:12,396 INFO L158 Benchmark]: Toolchain (without parser) took 2189.25ms. Allocated memory was 144.7MB in the beginning and 230.7MB in the end (delta: 86.0MB). Free memory was 98.2MB in the beginning and 150.7MB in the end (delta: -52.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-11-26 10:41:12,397 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory was 52.5MB in the beginning and 52.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:12,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.55ms. Allocated memory is still 144.7MB. Free memory was 98.2MB in the beginning and 86.2MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:41:12,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.97ms. Allocated memory is still 144.7MB. Free memory was 86.2MB in the beginning and 84.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:12,398 INFO L158 Benchmark]: Boogie Preprocessor took 68.82ms. Allocated memory is still 144.7MB. Free memory was 84.3MB in the beginning and 81.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:12,399 INFO L158 Benchmark]: RCFGBuilder took 616.27ms. Allocated memory was 144.7MB in the beginning and 230.7MB in the end (delta: 86.0MB). Free memory was 81.0MB in the beginning and 196.9MB in the end (delta: -115.9MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-26 10:41:12,399 INFO L158 Benchmark]: TraceAbstraction took 1030.10ms. Allocated memory is still 230.7MB. Free memory was 196.9MB in the beginning and 151.8MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-26 10:41:12,400 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 230.7MB. Free memory was 151.8MB in the beginning and 150.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:12,403 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory was 52.5MB in the beginning and 52.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.55ms. Allocated memory is still 144.7MB. Free memory was 98.2MB in the beginning and 86.2MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.97ms. Allocated memory is still 144.7MB. Free memory was 86.2MB in the beginning and 84.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.82ms. Allocated memory is still 144.7MB. Free memory was 84.3MB in the beginning and 81.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 616.27ms. Allocated memory was 144.7MB in the beginning and 230.7MB in the end (delta: 86.0MB). Free memory was 81.0MB in the beginning and 196.9MB in the end (delta: -115.9MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1030.10ms. Allocated memory is still 230.7MB. Free memory was 196.9MB in the beginning and 151.8MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 230.7MB. Free memory was 151.8MB in the beginning and 150.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 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: 88]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 82. Possible FailurePath: [L13] static const float one_modf = 1.0; [L82] float x = 0.0f / 0.0f; [L83] float iptr; [L84] CALL, EXPR modf_float(x, &iptr) [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [\old(x)=2147483662, iptr={6:0}, iptr={6:0}, one_modf=1, x=2147483662] [L19] ieee_float_shape_type gf_u; [L20] EXPR gf_u.value = (x) [L21] EXPR gf_u.word [L21] EXPR (i0) = gf_u.word [L18-L22] { ieee_float_shape_type gf_u; gf_u.value = (x); (i0) = gf_u.word; } VAL [\old(x)=2147483662, i0=-2147483648, iptr={6:0}, iptr={6:0}, one_modf=1, x=2147483662] [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=2147483662, i0=-2147483648, iptr={6:0}, iptr={6:0}, j0=-127, one_modf=1, x=2147483662] [L24] COND TRUE j0 < 23 VAL [one_modf=1] [L25] COND TRUE j0 < 0 VAL [one_modf=1] [L27] ieee_float_shape_type sf_u; [L28] EXPR sf_u.word = (i0 & 0x80000000) [L29] EXPR sf_u.value [L29] EXPR (*iptr) = sf_u.value [L26-L30] { ieee_float_shape_type sf_u; sf_u.word = (i0 & 0x80000000); (*iptr) = sf_u.value; } VAL [\old(x)=2147483662, i0=-2147483648, iptr={6:0}, iptr={6:0}, j0=-127, one_modf=1, x=2147483662] [L31] return x; VAL [\old(x)=2147483662, \result=2147483662, i0=-2147483648, iptr={6:0}, iptr={6:0}, j0=-127, one_modf=1, x=2147483662] [L84] RET, EXPR modf_float(x, &iptr) [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) VAL [one_modf=1] [L87] CALL, EXPR isnan_float(iptr) VAL [\old(x)=2147483663, one_modf=1] [L75] return x != x; [L87] RET, EXPR isnan_float(iptr) VAL [iptr={6:0}, one_modf=1, res=2147483662, x=2147483662] [L87] isnan_float(iptr) && !isnan_float(res) VAL [iptr={6:0}, one_modf=1, res=2147483662, x=2147483662] [L87] CALL, EXPR isnan_float(res) VAL [\old(x)=2147483662, one_modf=1] [L75] return x != x; [L87] RET, EXPR isnan_float(res) VAL [iptr={6:0}, one_modf=1, res=2147483662, x=2147483662] [L87] isnan_float(iptr) && !isnan_float(res) VAL [iptr={6:0}, one_modf=1, res=2147483662, x=2147483662] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [iptr={6:0}, one_modf=1, res=2147483662, x=2147483662] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 97 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 10:41:12,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:15,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:15,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:41:15,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:15,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:15,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:15,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:15,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:15,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:15,453 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:15,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:15,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:15,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:15,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:15,458 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:15,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:15,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:15,460 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:15,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:15,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:15,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:15,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:15,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:15,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:41:15,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:41:15,465 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:41:15,465 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:15,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:15,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:15,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:15,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:15,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:41:15,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:15,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:15,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:15,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:15,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:15,472 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:41:15,472 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:41:15,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:15,473 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:15,473 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:15,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:15,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:15,474 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:41:15,475 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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c [2023-11-26 10:41:15,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:15,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:15,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:15,927 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:15,928 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:15,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2023-11-26 10:41:19,122 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:19,447 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:19,448 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2023-11-26 10:41:19,459 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/data/7e80df8cd/ef36c449ce834556a995f2e86ac4ff23/FLAGac6ab9cf1 [2023-11-26 10:41:19,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/data/7e80df8cd/ef36c449ce834556a995f2e86ac4ff23 [2023-11-26 10:41:19,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:19,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:19,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:19,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:19,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:19,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c71d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19, skipping insertion in model container [2023-11-26 10:41:19,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,530 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:19,813 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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2023-11-26 10:41:19,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:19,846 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:19,897 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_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2023-11-26 10:41:19,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:19,925 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:19,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19 WrapperNode [2023-11-26 10:41:19,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:19,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:19,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:19,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:19,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,012 INFO L138 Inliner]: procedures = 19, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 152 [2023-11-26 10:41:20,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:20,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:20,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:20,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:20,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,050 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,073 INFO L175 MemorySlicer]: Split 22 memory accesses to 9 slices as follows [2, 2, 2, 6, 2, 2, 2, 2, 2]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 11 writes are split as follows [0, 1, 1, 4, 1, 1, 1, 1, 1]. [2023-11-26 10:41:20,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:20,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:20,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:20,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:20,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:20,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:20,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:20,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:20,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:41:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 10:41:20,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 10:41:20,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 10:41:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-26 10:41:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-26 10:41:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-26 10:41:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-26 10:41:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-11-26 10:41:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:41:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-26 10:41:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-26 10:41:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-26 10:41:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-26 10:41:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-11-26 10:41:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-11-26 10:41:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-11-26 10:41:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-11-26 10:41:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-11-26 10:41:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-26 10:41:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-26 10:41:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 10:41:20,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 10:41:20,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 10:41:20,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 10:41:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-26 10:41:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-26 10:41:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-26 10:41:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-26 10:41:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-11-26 10:41:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:20,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:20,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-26 10:41:20,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-26 10:41:20,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-26 10:41:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-26 10:41:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-11-26 10:41:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-11-26 10:41:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-11-26 10:41:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-11-26 10:41:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-11-26 10:41:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 10:41:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 10:41:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 10:41:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 10:41:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-26 10:41:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-26 10:41:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-26 10:41:20,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-26 10:41:20,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-11-26 10:41:20,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:41:20,447 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:20,449 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:21,210 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:21,241 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:21,241 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-11-26 10:41:21,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:21 BoogieIcfgContainer [2023-11-26 10:41:21,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:21,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:21,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:21,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:21,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:19" (1/3) ... [2023-11-26 10:41:21,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608be8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:21, skipping insertion in model container [2023-11-26 10:41:21,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (2/3) ... [2023-11-26 10:41:21,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608be8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:21, skipping insertion in model container [2023-11-26 10:41:21,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:21" (3/3) ... [2023-11-26 10:41:21,252 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2023-11-26 10:41:21,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:21,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:41:21,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:21,331 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;@435902b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:21,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:41:21,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 32 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 10:41:21,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:21,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:21,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:21,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:21,351 INFO L85 PathProgramCache]: Analyzing trace with hash -327941201, now seen corresponding path program 1 times [2023-11-26 10:41:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:21,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659809407] [2023-11-26 10:41:21,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:21,364 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 10:41:21,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:21,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:21,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:21,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:41:21,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:21,609 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 10:41:21,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:21,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:41:21,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659809407] [2023-11-26 10:41:21,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659809407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:21,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:21,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817052173] [2023-11-26 10:41:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:21,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:41:21,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:41:21,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:41:21,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:21,652 INFO L87 Difference]: Start difference. First operand has 36 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 32 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:21,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:21,687 INFO L93 Difference]: Finished difference Result 71 states and 109 transitions. [2023-11-26 10:41:21,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:41:21,689 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-26 10:41:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:21,697 INFO L225 Difference]: With dead ends: 71 [2023-11-26 10:41:21,697 INFO L226 Difference]: Without dead ends: 34 [2023-11-26 10:41:21,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:21,704 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:21,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:21,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-26 10:41:21,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-26 10:41:21,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:21,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2023-11-26 10:41:21,745 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 15 [2023-11-26 10:41:21,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:21,745 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2023-11-26 10:41:21,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:21,746 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2023-11-26 10:41:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 10:41:21,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:21,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:21,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:21,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:21,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:21,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:21,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1809896496, now seen corresponding path program 1 times [2023-11-26 10:41:21,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:21,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857150525] [2023-11-26 10:41:21,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:21,960 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 10:41:21,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:21,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:21,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:22,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 10:41:22,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:22,379 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 10:41:22,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:22,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:41:22,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857150525] [2023-11-26 10:41:22,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857150525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:22,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:22,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:41:22,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890406036] [2023-11-26 10:41:22,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:22,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:41:22,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:41:22,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:41:22,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:22,388 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:22,909 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2023-11-26 10:41:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:41:22,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-26 10:41:22,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:22,911 INFO L225 Difference]: With dead ends: 45 [2023-11-26 10:41:22,911 INFO L226 Difference]: Without dead ends: 21 [2023-11-26 10:41:22,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:41:22,913 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:22,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 48 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:41:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-26 10:41:22,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-26 10:41:22,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-11-26 10:41:22,921 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 17 [2023-11-26 10:41:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:22,921 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-11-26 10:41:22,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-11-26 10:41:22,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 10:41:22,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:22,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:22,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:23,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:23,127 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:23,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:23,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1226656369, now seen corresponding path program 1 times [2023-11-26 10:41:23,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:23,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874343636] [2023-11-26 10:41:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:23,129 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 10:41:23,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:23,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:23,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:41:23,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:23,357 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 10:41:23,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:23,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:41:23,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874343636] [2023-11-26 10:41:23,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874343636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:23,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:23,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:23,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890232569] [2023-11-26 10:41:23,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:23,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:23,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:41:23,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:23,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:23,360 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:23,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:23,384 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2023-11-26 10:41:23,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:23,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-26 10:41:23,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:23,385 INFO L225 Difference]: With dead ends: 24 [2023-11-26 10:41:23,385 INFO L226 Difference]: Without dead ends: 21 [2023-11-26 10:41:23,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:23,387 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:23,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:23,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-26 10:41:23,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-26 10:41:23,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:23,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2023-11-26 10:41:23,394 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 18 [2023-11-26 10:41:23,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:23,395 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2023-11-26 10:41:23,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:41:23,396 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2023-11-26 10:41:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 10:41:23,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:23,397 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:23,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:23,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:23,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:23,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:23,603 INFO L85 PathProgramCache]: Analyzing trace with hash -906955394, now seen corresponding path program 1 times [2023-11-26 10:41:23,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:23,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677121206] [2023-11-26 10:41:23,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:23,604 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 10:41:23,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:23,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:23,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 (5)] Waiting until timeout for monitored process [2023-11-26 10:41:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:23,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:41:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:24,050 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-26 10:41:24,050 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:41:24,051 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:41:24,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:24,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/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 10:41:24,256 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:41:24,259 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:41:24,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-26 10:41:24,290 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 10:41:24,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 10:41:24,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-26 10:41:24,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-26 10:41:24,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-26 10:41:24,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-26 10:41:24,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 10:41:24,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret15 could not be translated [2023-11-26 10:41:24,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-26 10:41:24,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-26 10:41:24,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret15 could not be translated [2023-11-26 10:41:24,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 10:41:24,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:41:24 BoogieIcfgContainer [2023-11-26 10:41:24,308 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:41:24,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:41:24,309 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:41:24,309 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:41:24,310 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:21" (3/4) ... [2023-11-26 10:41:24,311 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-26 10:41:24,331 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-26 10:41:24,337 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 10:41:24,338 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-26 10:41:24,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 10:41:24,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-26 10:41:24,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 10:41:24,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-26 10:41:24,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-26 10:41:24,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret15 could not be translated [2023-11-26 10:41:24,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-26 10:41:24,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-26 10:41:24,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret15 could not be translated [2023-11-26 10:41:24,361 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-26 10:41:24,412 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:41:24,413 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:41:24,413 INFO L158 Benchmark]: Toolchain (without parser) took 4928.62ms. Allocated memory is still 111.1MB. Free memory was 87.4MB in the beginning and 53.3MB in the end (delta: 34.1MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2023-11-26 10:41:24,414 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:24,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.35ms. Allocated memory is still 111.1MB. Free memory was 87.1MB in the beginning and 75.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:41:24,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.96ms. Allocated memory is still 111.1MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:24,415 INFO L158 Benchmark]: Boogie Preprocessor took 118.73ms. Allocated memory is still 111.1MB. Free memory was 72.9MB in the beginning and 69.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:24,415 INFO L158 Benchmark]: RCFGBuilder took 1108.44ms. Allocated memory is still 111.1MB. Free memory was 69.6MB in the beginning and 82.1MB in the end (delta: -12.5MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-26 10:41:24,416 INFO L158 Benchmark]: TraceAbstraction took 3063.55ms. Allocated memory is still 111.1MB. Free memory was 81.8MB in the beginning and 56.1MB in the end (delta: 25.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2023-11-26 10:41:24,416 INFO L158 Benchmark]: Witness Printer took 104.27ms. Allocated memory is still 111.1MB. Free memory was 56.1MB in the beginning and 53.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:24,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.35ms. Allocated memory is still 111.1MB. Free memory was 87.1MB in the beginning and 75.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.96ms. Allocated memory is still 111.1MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.73ms. Allocated memory is still 111.1MB. Free memory was 72.9MB in the beginning and 69.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1108.44ms. Allocated memory is still 111.1MB. Free memory was 69.6MB in the beginning and 82.1MB in the end (delta: -12.5MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3063.55ms. Allocated memory is still 111.1MB. Free memory was 81.8MB in the beginning and 56.1MB in the end (delta: 25.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 104.27ms. Allocated memory is still 111.1MB. Free memory was 56.1MB in the beginning and 53.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 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 - CounterExampleResult [Line: 88]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L13] static const float one_modf = 1.0; [L82] float x = 0.0f / 0.0f; [L83] float iptr; [L84] CALL, EXPR modf_float(x, &iptr) [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [\old(x)=NaN, iptr={-2147483648:0}, iptr={-2147483648:0}, one_modf=1.0, x=NaN] [L19] ieee_float_shape_type gf_u; [L20] EXPR gf_u.value = (x) [L21] EXPR gf_u.word [L21] EXPR (i0) = gf_u.word [L18-L22] { ieee_float_shape_type gf_u; gf_u.value = (x); (i0) = gf_u.word; } VAL [\old(x)=NaN, i0=2143289344, iptr={-2147483648:0}, iptr={-2147483648:0}, one_modf=1.0, x=NaN] [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=NaN, i0=2143289344, iptr={-2147483648:0}, iptr={-2147483648:0}, j0=128, one_modf=1.0, x=NaN] [L24] COND FALSE !(j0 < 23) [L58] __uint32_t ix; [L59] *iptr = x * one_modf VAL [one_modf=1.0] [L61] ieee_float_shape_type gf_u; [L62] EXPR gf_u.value = (x) [L63] EXPR gf_u.word [L63] EXPR (ix) = gf_u.word [L60-L64] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=NaN, i0=2143289344, iptr={-2147483648:0}, iptr={-2147483648:0}, ix=2143289344, j0=128, one_modf=1.0, x=NaN] [L66] ieee_float_shape_type sf_u; [L67] EXPR sf_u.word = (ix & 0x80000000) [L68] EXPR sf_u.value [L68] EXPR (x) = sf_u.value [L65-L69] { ieee_float_shape_type sf_u; sf_u.word = (ix & 0x80000000); (x) = sf_u.value; } VAL [\old(x)=NaN, i0=2143289344, iptr={-2147483648:0}, iptr={-2147483648:0}, ix=2143289344, j0=128, one_modf=1.0, x=0.0] [L70] return x; VAL [\old(x)=NaN, \result=0.0, i0=2143289344, iptr={-2147483648:0}, iptr={-2147483648:0}, ix=2143289344, j0=128, one_modf=1.0, x=0.0] [L84] RET, EXPR modf_float(x, &iptr) [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) VAL [one_modf=1.0] [L87] CALL, EXPR isnan_float(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L75] return x != x; [L87] RET, EXPR isnan_float(iptr) VAL [iptr={-2147483648:0}, one_modf=1.0, res=0.0, x=NaN] [L87] isnan_float(iptr) && !isnan_float(res) VAL [iptr={-2147483648:0}, one_modf=1.0, res=0.0, x=NaN] [L87] CALL, EXPR isnan_float(res) VAL [\old(x)=0.0, one_modf=1.0] [L75] return x != x; [L87] RET, EXPR isnan_float(res) VAL [iptr={-2147483648:0}, one_modf=1.0, res=0.0, x=NaN] [L87] isnan_float(iptr) && !isnan_float(res) VAL [iptr={-2147483648:0}, one_modf=1.0, res=0.0, x=NaN] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [iptr={-2147483648:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 120 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 73 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 4 QuantifiedInterpolants, 101 SizeOfPredicates, 7 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-26 10:41:24,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ceba19a-fbf1-4fdb-bb85-893f98edb13c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE