./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/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_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/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_1762e0eb-cda4-4f12-8590-f71e186196fb/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 710320fa6de161e4a282e22ef2d80d8d84540a08056bade2f948495e37c0bf61 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:22,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:22,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:51:22,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:22,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:22,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:22,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:22,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:22,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:22,868 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:22,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:22,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:22,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:22,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:22,872 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:22,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:22,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:22,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:22,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:22,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:22,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:22,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:22,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:22,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:22,876 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:22,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:22,877 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:22,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:22,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:22,878 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:22,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:22,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:22,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:22,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:22,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:22,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:22,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:22,881 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:22,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:22,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:22,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:22,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:22,882 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_1762e0eb-cda4-4f12-8590-f71e186196fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 710320fa6de161e4a282e22ef2d80d8d84540a08056bade2f948495e37c0bf61 [2023-11-26 11:51:23,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:23,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:23,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:23,290 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:23,291 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:23,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i [2023-11-26 11:51:26,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:26,727 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:26,728 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i [2023-11-26 11:51:26,738 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/data/0e64a896e/28aaa11ac3224d5a96c3e680d8783495/FLAG78a0d90c6 [2023-11-26 11:51:26,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/data/0e64a896e/28aaa11ac3224d5a96c3e680d8783495 [2023-11-26 11:51:26,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:26,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:26,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:26,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:26,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:26,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:26" (1/1) ... [2023-11-26 11:51:26,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c6b495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:26, skipping insertion in model container [2023-11-26 11:51:26,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:26" (1/1) ... [2023-11-26 11:51:26,813 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:26,974 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_1762e0eb-cda4-4f12-8590-f71e186196fb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i[913,926] [2023-11-26 11:51:27,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:27,029 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:27,047 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_1762e0eb-cda4-4f12-8590-f71e186196fb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i[913,926] [2023-11-26 11:51:27,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:27,092 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:27,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27 WrapperNode [2023-11-26 11:51:27,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:27,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:27,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:27,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:27,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,165 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2023-11-26 11:51:27,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:27,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:27,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:27,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:27,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,182 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,204 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:51:27,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:27,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:27,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:27,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:27,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:27,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:27,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:27,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:51:27,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:51:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:51:27,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:27,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:27,448 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:27,451 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:27,701 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:27,760 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:27,760 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:51:27,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:27 BoogieIcfgContainer [2023-11-26 11:51:27,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:27,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:27,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:27,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:27,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:26" (1/3) ... [2023-11-26 11:51:27,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25160608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:27, skipping insertion in model container [2023-11-26 11:51:27,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (2/3) ... [2023-11-26 11:51:27,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25160608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:27, skipping insertion in model container [2023-11-26 11:51:27,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:27" (3/3) ... [2023-11-26 11:51:27,770 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-78.i [2023-11-26 11:51:27,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:27,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:51:27,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:27,843 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;@b70e29e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:27,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:51:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:51:27,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 11:51:27,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:27,859 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:27,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:27,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:27,866 INFO L85 PathProgramCache]: Analyzing trace with hash -856632770, now seen corresponding path program 1 times [2023-11-26 11:51:27,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:27,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078934219] [2023-11-26 11:51:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:27,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:51:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:51:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:51:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:51:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:51:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:51:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:51:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:51:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:51:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:51:28,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:28,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078934219] [2023-11-26 11:51:28,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078934219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:28,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:28,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:51:28,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543979297] [2023-11-26 11:51:28,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:28,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:51:28,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:28,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:51:28,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:28,737 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-26 11:51:28,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:28,874 INFO L93 Difference]: Finished difference Result 108 states and 184 transitions. [2023-11-26 11:51:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:51:28,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 68 [2023-11-26 11:51:28,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:28,892 INFO L225 Difference]: With dead ends: 108 [2023-11-26 11:51:28,892 INFO L226 Difference]: Without dead ends: 71 [2023-11-26 11:51:28,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:28,902 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 25 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:28,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 131 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-26 11:51:28,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2023-11-26 11:51:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 45 states have internal predecessors, (56), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-26 11:51:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2023-11-26 11:51:28,977 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 96 transitions. Word has length 68 [2023-11-26 11:51:28,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:28,978 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 96 transitions. [2023-11-26 11:51:28,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-26 11:51:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 96 transitions. [2023-11-26 11:51:28,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 11:51:28,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:28,987 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:28,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:28,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:28,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:28,990 INFO L85 PathProgramCache]: Analyzing trace with hash -856573188, now seen corresponding path program 1 times [2023-11-26 11:51:28,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:28,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243066690] [2023-11-26 11:51:28,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:28,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:29,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:29,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:29,241 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:51:29,243 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:51:29,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:51:29,250 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:51:29,254 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:51:29,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:51:29 BoogieIcfgContainer [2023-11-26 11:51:29,341 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:51:29,342 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:51:29,342 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:51:29,342 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:51:29,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:27" (3/4) ... [2023-11-26 11:51:29,345 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:51:29,347 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:51:29,348 INFO L158 Benchmark]: Toolchain (without parser) took 2587.42ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 107.5MB in the beginning and 137.3MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:29,348 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:29,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.85ms. Allocated memory is still 144.7MB. Free memory was 107.1MB in the beginning and 94.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:51:29,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.71ms. Allocated memory is still 144.7MB. Free memory was 94.8MB in the beginning and 92.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:29,350 INFO L158 Benchmark]: Boogie Preprocessor took 56.56ms. Allocated memory is still 144.7MB. Free memory was 92.4MB in the beginning and 89.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:29,351 INFO L158 Benchmark]: RCFGBuilder took 536.76ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 102.7MB in the end (delta: -12.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:51:29,352 INFO L158 Benchmark]: TraceAbstraction took 1577.92ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 101.9MB in the beginning and 138.4MB in the end (delta: -36.5MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:29,352 INFO L158 Benchmark]: Witness Printer took 5.08ms. Allocated memory is still 174.1MB. Free memory was 138.4MB in the beginning and 137.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:29,356 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.85ms. Allocated memory is still 144.7MB. Free memory was 107.1MB in the beginning and 94.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.71ms. Allocated memory is still 144.7MB. Free memory was 94.8MB in the beginning and 92.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.56ms. Allocated memory is still 144.7MB. Free memory was 92.4MB in the beginning and 89.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.76ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 102.7MB in the end (delta: -12.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1577.92ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 101.9MB in the beginning and 138.4MB in the end (delta: -36.5MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Witness Printer took 5.08ms. Allocated memory is still 174.1MB. Free memory was 138.4MB in the beginning and 137.3MB 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.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryArithmeticFLOAToperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -200; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 1; [L25] float var_1_9 = 100.55; [L26] float var_1_10 = 4.75; [L27] float var_1_11 = 128.75; [L28] double var_1_12 = 128.5; [L29] double var_1_13 = 0.0; [L30] double var_1_14 = 127.875; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 16; [L90] isInitial = 1 [L91] FCALL initially() [L92] COND TRUE 1 [L93] FCALL updateLastVariables() [L94] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=2011/20] [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=2011/20] [L67] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=2011/20] [L67] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=2011/20] [L68] var_1_3 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_9=2011/20] [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_9=2011/20] [L70] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L70] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L71] var_1_10 = __VERIFIER_nondet_float() [L72] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L72] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L73] var_1_11 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L74] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L75] var_1_13 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_13 >= 4611686.018427382800e+12F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=257/2, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L76] RET assume_abort_if_not((var_1_13 >= 4611686.018427382800e+12F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=257/2, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L77] var_1_14 = __VERIFIER_nondet_double() [L78] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L78] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L79] var_1_16 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L80] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_12=257/2, var_1_15=1, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L81] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L81] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L94] RET updateVariables() [L95] CALL step() [L36] COND TRUE 0.8f > (- var_1_10) [L37] var_1_15 = var_1_16 VAL [isInitial=1, var_1_12=257/2, var_1_15=254, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L39] unsigned char stepLocal_1 = var_1_15 > var_1_15; [L40] unsigned char stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_12=257/2, var_1_15=254, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L41] COND FALSE !(var_1_2 && stepLocal_0) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_12=257/2, var_1_15=254, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=2011/20] [L48] COND TRUE \read(var_1_2) [L49] var_1_9 = (var_1_10 - var_1_11) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_12=257/2, var_1_15=254, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0] [L57] signed long int stepLocal_2 = var_1_1; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=-200, var_1_12=257/2, var_1_15=254, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0] [L58] COND FALSE !(stepLocal_2 <= ((((8u) < 0 ) ? -(8u) : (8u)))) [L61] var_1_12 = ((var_1_13 - var_1_14) - var_1_11) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=-200, var_1_15=254, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0] [L95] RET step() [L96] CALL, EXPR property() [L86-L87] return ((((var_1_2 && var_1_3) ? ((var_1_2 && (var_1_15 > var_1_15)) ? (var_1_1 == ((signed long int) (var_1_15 - var_1_15))) : (var_1_1 == ((signed long int) ((var_1_15 + 5) - var_1_15)))) : 1) && (var_1_2 ? (var_1_9 == ((float) (var_1_10 - var_1_11))) : ((var_1_1 < var_1_15) ? (var_1_9 == ((float) ((((var_1_11) > (var_1_10)) ? (var_1_11) : (var_1_10))))) : (var_1_9 == ((float) var_1_10))))) && ((var_1_1 <= ((((8u) < 0 ) ? -(8u) : (8u)))) ? (var_1_12 == ((double) (var_1_10 - 99.5))) : (var_1_12 == ((double) ((var_1_13 - var_1_14) - var_1_11))))) && ((0.8f > (- var_1_10)) ? (var_1_15 == ((unsigned char) var_1_16)) : 1) ; [L96] RET, EXPR property() [L96] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_15=254, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_15=254, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 45 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=1, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 180/180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 11:51:29,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/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_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/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_1762e0eb-cda4-4f12-8590-f71e186196fb/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 710320fa6de161e4a282e22ef2d80d8d84540a08056bade2f948495e37c0bf61 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:32,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:32,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:51:32,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:32,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:32,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:32,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:32,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:32,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:32,642 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:32,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:32,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:32,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:32,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:32,646 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:32,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:32,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:32,648 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:32,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:32,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:32,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:32,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:32,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:32,652 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:51:32,653 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:51:32,653 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:51:32,654 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:32,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:32,655 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:32,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:32,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:32,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:32,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:32,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:32,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:32,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:32,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:32,660 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:51:32,660 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:51:32,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:32,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:32,661 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:32,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:32,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:32,662 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:51:32,663 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_1762e0eb-cda4-4f12-8590-f71e186196fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 710320fa6de161e4a282e22ef2d80d8d84540a08056bade2f948495e37c0bf61 [2023-11-26 11:51:33,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:33,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:33,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:33,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:33,132 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:33,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i [2023-11-26 11:51:36,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:36,591 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:36,592 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i [2023-11-26 11:51:36,602 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/data/ec224af44/8f919b282cb64b24bfee4dde12bd65f7/FLAG702af5142 [2023-11-26 11:51:36,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/data/ec224af44/8f919b282cb64b24bfee4dde12bd65f7 [2023-11-26 11:51:36,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:36,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:36,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:36,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:36,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:36,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:36" (1/1) ... [2023-11-26 11:51:36,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d0f9bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:36, skipping insertion in model container [2023-11-26 11:51:36,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:36" (1/1) ... [2023-11-26 11:51:36,661 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:36,853 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_1762e0eb-cda4-4f12-8590-f71e186196fb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i[913,926] [2023-11-26 11:51:36,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:36,976 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:36,998 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_1762e0eb-cda4-4f12-8590-f71e186196fb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-78.i[913,926] [2023-11-26 11:51:37,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:37,067 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:37,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37 WrapperNode [2023-11-26 11:51:37,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:37,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:37,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:37,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:37,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,148 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2023-11-26 11:51:37,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:37,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:37,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:37,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:37,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,206 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:51:37,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:37,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:37,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:37,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:37,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (1/1) ... [2023-11-26 11:51:37,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:37,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:37,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:37,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:51:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:51:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:51:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:37,468 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:37,470 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:42,233 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:42,316 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:42,319 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:51:42,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:42 BoogieIcfgContainer [2023-11-26 11:51:42,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:42,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:42,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:42,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:42,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:36" (1/3) ... [2023-11-26 11:51:42,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7923734b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:42, skipping insertion in model container [2023-11-26 11:51:42,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:37" (2/3) ... [2023-11-26 11:51:42,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7923734b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:42, skipping insertion in model container [2023-11-26 11:51:42,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:42" (3/3) ... [2023-11-26 11:51:42,332 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-78.i [2023-11-26 11:51:42,353 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:42,353 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:51:42,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:42,427 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;@3f44612a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:42,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:51:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:51:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 11:51:42,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:42,446 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:42,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:42,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:42,454 INFO L85 PathProgramCache]: Analyzing trace with hash -856632770, now seen corresponding path program 1 times [2023-11-26 11:51:42,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:51:42,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605377831] [2023-11-26 11:51:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:42,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:51:42,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:51:42,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:51:42,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 11:51:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:51:43,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:43,577 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:51:43,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:43,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:51:43,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605377831] [2023-11-26 11:51:43,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605377831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:43,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:43,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:51:43,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844639389] [2023-11-26 11:51:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:43,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:51:43,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:51:43,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:51:43,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:43,624 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-26 11:51:45,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 11:51:49,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 11:51:52,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 11:51:55,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 11:51:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:55,967 INFO L93 Difference]: Finished difference Result 108 states and 184 transitions. [2023-11-26 11:51:55,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:51:55,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 68 [2023-11-26 11:51:55,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:55,993 INFO L225 Difference]: With dead ends: 108 [2023-11-26 11:51:55,994 INFO L226 Difference]: Without dead ends: 71 [2023-11-26 11:51:55,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:56,001 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 12 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:56,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 131 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-11-26 11:51:56,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-26 11:51:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2023-11-26 11:51:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 45 states have internal predecessors, (56), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-26 11:51:56,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2023-11-26 11:51:56,059 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 96 transitions. Word has length 68 [2023-11-26 11:51:56,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:56,061 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 96 transitions. [2023-11-26 11:51:56,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-26 11:51:56,062 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 96 transitions. [2023-11-26 11:51:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 11:51:56,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:56,066 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:56,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/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 11:51:56,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:51:56,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:56,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:56,279 INFO L85 PathProgramCache]: Analyzing trace with hash -856573188, now seen corresponding path program 1 times [2023-11-26 11:51:56,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:51:56,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191387946] [2023-11-26 11:51:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:56,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:51:56,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:51:56,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:51:56,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1762e0eb-cda4-4f12-8590-f71e186196fb/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 11:51:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:56,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-26 11:51:56,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:25,977 WARN L293 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)