./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.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_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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_5941ee57-7725-4e60-a71d-b1e940806f8b/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 ddce48067b4423a9dbd4ae41b2384910d5e8f4f139aef66a78ce087435d0c23b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:57:18,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:57:18,905 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:57:18,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:57:18,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:57:18,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:57:18,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:57:18,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:57:18,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:57:18,969 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:57:18,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:57:18,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:57:18,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:57:18,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:57:18,973 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:57:18,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:57:18,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:57:18,975 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:57:18,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:57:18,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:57:18,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:57:18,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:57:18,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:57:18,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:57:18,978 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:57:18,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:57:18,979 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:57:18,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:57:18,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:57:18,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:57:18,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:57:18,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:18,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:57:18,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:57:18,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:57:18,986 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:57:18,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:57:18,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:57:18,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:57:18,987 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:57:18,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:57:18,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:57:18,988 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_5941ee57-7725-4e60-a71d-b1e940806f8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddce48067b4423a9dbd4ae41b2384910d5e8f4f139aef66a78ce087435d0c23b [2023-11-26 11:57:19,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:57:19,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:57:19,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:57:19,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:57:19,345 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:57:19,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i [2023-11-26 11:57:22,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:57:22,779 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:57:22,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i [2023-11-26 11:57:22,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/data/37706207a/bff05388ee3f4acbbf35604a505c2eab/FLAG0275a1f9a [2023-11-26 11:57:22,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/data/37706207a/bff05388ee3f4acbbf35604a505c2eab [2023-11-26 11:57:22,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:57:22,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:57:22,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:22,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:57:22,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:57:22,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c7b83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22, skipping insertion in model container [2023-11-26 11:57:22,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,884 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:57:23,067 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_5941ee57-7725-4e60-a71d-b1e940806f8b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i[915,928] [2023-11-26 11:57:23,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:23,128 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:57:23,139 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_5941ee57-7725-4e60-a71d-b1e940806f8b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i[915,928] [2023-11-26 11:57:23,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:23,177 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:57:23,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23 WrapperNode [2023-11-26 11:57:23,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:23,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:23,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:57:23,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:57:23,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,232 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2023-11-26 11:57:23,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:23,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:57:23,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:57:23,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:57:23,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,250 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,264 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 11:57:23,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:57:23,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:57:23,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:57:23,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:57:23,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (1/1) ... [2023-11-26 11:57:23,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:23,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:23,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:23,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:57:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:57:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:57:23,381 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:57:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:57:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:57:23,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:57:23,482 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:57:23,485 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:57:23,808 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:57:23,907 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:57:23,913 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:57:23,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:23 BoogieIcfgContainer [2023-11-26 11:57:23,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:57:23,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:57:23,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:57:23,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:57:23,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:57:22" (1/3) ... [2023-11-26 11:57:23,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7bcdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:23, skipping insertion in model container [2023-11-26 11:57:23,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:23" (2/3) ... [2023-11-26 11:57:23,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7bcdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:23, skipping insertion in model container [2023-11-26 11:57:23,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:23" (3/3) ... [2023-11-26 11:57:23,933 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-26.i [2023-11-26 11:57:23,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:57:23,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:57:24,024 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:57:24,033 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;@219420fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:57:24,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:57:24,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:57:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:57:24,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:24,058 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:24,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:24,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:24,066 INFO L85 PathProgramCache]: Analyzing trace with hash -238056285, now seen corresponding path program 1 times [2023-11-26 11:57:24,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:24,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731665572] [2023-11-26 11:57:24,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:24,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:57:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:57:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:57:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:57:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:57:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:57:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:57:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:57:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:57:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:57:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 11:57:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:57:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:57:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:57:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:57:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:57:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:57:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 11:57:24,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:24,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731665572] [2023-11-26 11:57:24,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731665572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:24,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:24,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:24,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020614286] [2023-11-26 11:57:24,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:24,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:57:24,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:24,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:57:24,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:24,840 INFO L87 Difference]: Start difference. First operand has 46 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:57:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:24,904 INFO L93 Difference]: Finished difference Result 89 states and 155 transitions. [2023-11-26 11:57:24,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:57:24,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2023-11-26 11:57:24,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:57:24,918 INFO L225 Difference]: With dead ends: 89 [2023-11-26 11:57:24,918 INFO L226 Difference]: Without dead ends: 44 [2023-11-26 11:57:24,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:24,927 INFO L413 NwaCegarLoop]: 62 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, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:57:24,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:57:24,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-26 11:57:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-26 11:57:24,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:57:24,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2023-11-26 11:57:24,994 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 103 [2023-11-26 11:57:24,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:57:24,995 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2023-11-26 11:57:24,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:57:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-11-26 11:57:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:57:25,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:25,003 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:25,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:57:25,004 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:25,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:25,005 INFO L85 PathProgramCache]: Analyzing trace with hash -897663255, now seen corresponding path program 1 times [2023-11-26 11:57:25,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:25,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117792993] [2023-11-26 11:57:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:25,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:25,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:25,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:25,395 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:57:25,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:57:25,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:57:25,404 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:57:25,408 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:57:25,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:57:25 BoogieIcfgContainer [2023-11-26 11:57:25,522 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:57:25,523 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:57:25,524 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:57:25,524 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:57:25,526 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:23" (3/4) ... [2023-11-26 11:57:25,532 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:57:25,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:57:25,536 INFO L158 Benchmark]: Toolchain (without parser) took 2712.95ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 113.4MB in the beginning and 114.8MB in the end (delta: -1.4MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2023-11-26 11:57:25,537 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 109.1MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:57:25,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.23ms. Allocated memory is still 144.7MB. Free memory was 113.2MB in the beginning and 100.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:57:25,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.73ms. Allocated memory is still 144.7MB. Free memory was 100.9MB in the beginning and 98.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:57:25,547 INFO L158 Benchmark]: Boogie Preprocessor took 48.76ms. Allocated memory is still 144.7MB. Free memory was 98.9MB in the beginning and 96.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:57:25,547 INFO L158 Benchmark]: RCFGBuilder took 630.85ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 80.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:57:25,548 INFO L158 Benchmark]: TraceAbstraction took 1604.72ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 79.2MB in the beginning and 114.8MB in the end (delta: -35.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2023-11-26 11:57:25,549 INFO L158 Benchmark]: Witness Printer took 10.70ms. Allocated memory is still 190.8MB. Free memory is still 114.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:57:25,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 109.1MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.23ms. Allocated memory is still 144.7MB. Free memory was 113.2MB in the beginning and 100.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.73ms. Allocated memory is still 144.7MB. Free memory was 100.9MB in the beginning and 98.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.76ms. Allocated memory is still 144.7MB. Free memory was 98.9MB in the beginning and 96.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.85ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 80.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1604.72ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 79.2MB in the beginning and 114.8MB in the end (delta: -35.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 10.70ms. Allocated memory is still 190.8MB. Free memory is still 114.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 someBinaryDOUBLEComparisonOperation at line 92, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -1; [L23] signed short int var_1_4 = 1; [L24] signed short int var_1_5 = -10; [L25] double var_1_6 = 10.4; [L26] double var_1_7 = 100000000000000.2; [L27] double var_1_8 = 99.4; [L28] double var_1_9 = 49.825; [L29] unsigned short int var_1_10 = 50; [L30] unsigned char var_1_11 = 0; [L31] double var_1_12 = 4.3; [L32] double var_1_13 = 2.875; [L33] unsigned short int var_1_14 = 64; [L34] unsigned short int var_1_15 = 50; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] FCALL updateLastVariables() [L100] CALL updateVariables() [L61] var_1_4 = __VERIFIER_nondet_short() [L62] CALL assume_abort_if_not(var_1_4 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-10, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-10, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L62] RET assume_abort_if_not(var_1_4 >= -32767) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-10, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L63] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-10, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-10, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L63] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-10, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L64] var_1_5 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_5 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L65] RET assume_abort_if_not(var_1_5 >= -32767) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L66] CALL assume_abort_if_not(var_1_5 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L66] RET assume_abort_if_not(var_1_5 <= 32766) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_7=500000000000001/5, var_1_8=497/5, var_1_9=1993/40] [L67] var_1_7 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_8=497/5, var_1_9=1993/40] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_8=497/5, var_1_9=1993/40] [L68] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_8=497/5, var_1_9=1993/40] [L69] var_1_8 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_9=1993/40] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_9=1993/40] [L70] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5, var_1_9=1993/40] [L71] var_1_9 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L72] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L73] var_1_11 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L74] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=50, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L75] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L75] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_12=43/10, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L76] var_1_12 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L77] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L78] CALL assume_abort_if_not(var_1_12 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L78] RET assume_abort_if_not(var_1_12 != 0.0F) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_13=23/8, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L79] var_1_13 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L80] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L81] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L81] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_14=64, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L82] var_1_14 = __VERIFIER_nondet_ushort() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L84] CALL assume_abort_if_not(var_1_14 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L84] RET assume_abort_if_not(var_1_14 <= 65534) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=50, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L85] var_1_15 = __VERIFIER_nondet_ushort() [L86] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L86] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L87] CALL assume_abort_if_not(var_1_15 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L87] RET assume_abort_if_not(var_1_15 <= 65534) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-1, var_1_4=-3, var_1_5=-3, var_1_6=52/5] [L100] RET updateVariables() [L101] CALL step() [L38] var_1_6 = (var_1_7 - (var_1_8 + var_1_9)) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-1, var_1_4=-3, var_1_5=-3] [L39] COND FALSE !(var_1_6 > var_1_6) [L42] var_1_1 = ((((-4) < (var_1_5)) ? (-4) : (var_1_5))) VAL [isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-4, var_1_4=-3, var_1_5=-3] [L44] signed long int stepLocal_1 = 100; [L45] unsigned char stepLocal_0 = var_1_8 <= (var_1_7 + var_1_9); VAL [isInitial=1, stepLocal_0=0, stepLocal_1=100, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-4, var_1_4=-3, var_1_5=-3] [L46] COND FALSE !(var_1_11 || stepLocal_0) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=100, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-4, var_1_4=-3, var_1_5=-3] [L101] RET step() [L102] CALL, EXPR property() [L92-L93] return (((var_1_6 > var_1_6) ? (var_1_1 == ((signed short int) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : (var_1_1 == ((signed short int) ((((-4) < (var_1_5)) ? (-4) : (var_1_5)))))) && (var_1_6 == ((double) (var_1_7 - (var_1_8 + var_1_9))))) && ((var_1_11 || (var_1_8 <= (var_1_7 + var_1_9))) ? ((((var_1_7 + var_1_6) / ((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13)))) <= var_1_9) ? ((var_1_6 > 2.5) ? ((100 > var_1_1) ? (var_1_10 == ((unsigned short int) var_1_14)) : (var_1_10 == ((unsigned short int) var_1_15))) : (var_1_10 == ((unsigned short int) var_1_14))) : 1) : 1) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-4, var_1_4=-3, var_1_5=-3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=50, var_1_11=0, var_1_14=65534, var_1_15=65534, var_1_1=-4, var_1_4=-3, var_1_5=-3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 62 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 544/544 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 11:57:25,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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_5941ee57-7725-4e60-a71d-b1e940806f8b/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 ddce48067b4423a9dbd4ae41b2384910d5e8f4f139aef66a78ce087435d0c23b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:57:28,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:57:28,678 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:57:28,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:57:28,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:57:28,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:57:28,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:57:28,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:57:28,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:57:28,745 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:57:28,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:57:28,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:57:28,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:57:28,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:57:28,749 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:57:28,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:57:28,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:57:28,751 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:57:28,751 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:57:28,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:57:28,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:57:28,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:57:28,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:57:28,754 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:57:28,755 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:57:28,755 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:57:28,755 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:57:28,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:57:28,756 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:57:28,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:57:28,758 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:57:28,759 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:57:28,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:57:28,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:28,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:57:28,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:57:28,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:57:28,761 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:57:28,761 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:57:28,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:57:28,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:57:28,762 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:57:28,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:57:28,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:57:28,763 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:57:28,763 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_5941ee57-7725-4e60-a71d-b1e940806f8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddce48067b4423a9dbd4ae41b2384910d5e8f4f139aef66a78ce087435d0c23b [2023-11-26 11:57:29,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:57:29,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:57:29,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:57:29,209 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:57:29,213 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:57:29,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i [2023-11-26 11:57:32,490 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:57:32,881 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:57:32,882 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i [2023-11-26 11:57:32,894 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/data/aeb64bb03/6f0e4c92d4e34acd844d1b1d20428000/FLAG2568c8e53 [2023-11-26 11:57:32,911 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/data/aeb64bb03/6f0e4c92d4e34acd844d1b1d20428000 [2023-11-26 11:57:32,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:57:32,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:57:32,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:32,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:57:32,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:57:32,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8f4b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:32, skipping insertion in model container [2023-11-26 11:57:32,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:32" (1/1) ... [2023-11-26 11:57:32,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:57:33,186 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_5941ee57-7725-4e60-a71d-b1e940806f8b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i[915,928] [2023-11-26 11:57:33,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:33,276 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:57:33,293 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_5941ee57-7725-4e60-a71d-b1e940806f8b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-26.i[915,928] [2023-11-26 11:57:33,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:33,340 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:57:33,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33 WrapperNode [2023-11-26 11:57:33,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:33,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:33,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:57:33,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:57:33,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,431 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-26 11:57:33,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:33,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:57:33,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:57:33,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:57:33,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,542 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 11:57:33,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:57:33,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:57:33,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:57:33,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:57:33,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (1/1) ... [2023-11-26 11:57:33,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:33,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:33,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:33,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:57:33,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:57:33,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:57:33,688 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:57:33,688 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:57:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:57:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:57:33,842 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:57:33,845 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:57:48,340 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:57:48,398 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:57:48,398 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:57:48,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:48 BoogieIcfgContainer [2023-11-26 11:57:48,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:57:48,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:57:48,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:57:48,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:57:48,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:57:32" (1/3) ... [2023-11-26 11:57:48,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60413e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:48, skipping insertion in model container [2023-11-26 11:57:48,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:33" (2/3) ... [2023-11-26 11:57:48,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60413e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:48, skipping insertion in model container [2023-11-26 11:57:48,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:48" (3/3) ... [2023-11-26 11:57:48,411 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-26.i [2023-11-26 11:57:48,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:57:48,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:57:48,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:57:48,502 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;@3905fcc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:57:48,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:57:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:57:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:57:48,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:48,524 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:48,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:48,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:48,535 INFO L85 PathProgramCache]: Analyzing trace with hash -238056285, now seen corresponding path program 1 times [2023-11-26 11:57:48,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:57:48,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112023756] [2023-11-26 11:57:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:48,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:57:48,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:57:48,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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 11:57:48,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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 11:57:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:50,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:57:50,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-26 11:57:50,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:57:50,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:57:50,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112023756] [2023-11-26 11:57:50,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112023756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:50,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:50,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:50,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065513398] [2023-11-26 11:57:50,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:50,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:57:50,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:57:50,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:57:50,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:50,120 INFO L87 Difference]: Start difference. First operand has 46 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:57:55,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 11:57:55,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:55,034 INFO L93 Difference]: Finished difference Result 89 states and 155 transitions. [2023-11-26 11:57:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:57:55,279 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2023-11-26 11:57:55,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:57:55,287 INFO L225 Difference]: With dead ends: 89 [2023-11-26 11:57:55,288 INFO L226 Difference]: Without dead ends: 44 [2023-11-26 11:57:55,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:55,296 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:57:55,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-11-26 11:57:55,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-26 11:57:55,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-26 11:57:55,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:57:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2023-11-26 11:57:55,343 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 103 [2023-11-26 11:57:55,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:57:55,343 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2023-11-26 11:57:55,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:57:55,344 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-11-26 11:57:55,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:57:55,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:55,347 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:55,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-26 11:57:55,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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 11:57:55,561 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:55,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:55,562 INFO L85 PathProgramCache]: Analyzing trace with hash -897663255, now seen corresponding path program 1 times [2023-11-26 11:57:55,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:57:55,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054039087] [2023-11-26 11:57:55,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:55,564 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 11:57:55,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:57:55,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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 11:57:55,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5941ee57-7725-4e60-a71d-b1e940806f8b/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 11:57:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:56,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-26 11:57:56,964 INFO L285 TraceCheckSpWp]: Computing forward predicates...