./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC --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 6d3b9aeb878380bdc771becb29ac1261e3f51b87c750ca0ae0ce079e64216b40 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:01:39,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:01:39,682 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:01:39,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:01:39,689 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:01:39,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:01:39,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:01:39,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:01:39,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:01:39,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:01:39,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:01:39,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:01:39,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:01:39,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:01:39,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:01:39,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:01:39,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:01:39,729 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:01:39,729 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:01:39,729 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:01:39,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:39,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:39,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:39,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:39,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:01:39,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:39,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:39,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:01:39,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:01:39,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:01:39,731 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC 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 -> 6d3b9aeb878380bdc771becb29ac1261e3f51b87c750ca0ae0ce079e64216b40 [2024-11-24 02:01:40,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:01:40,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:01:40,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:01:40,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:01:40,067 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:01:40,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i [2024-11-24 02:01:43,026 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data/6fd27520a/22df06599ae344659f8466e96e4ce7e7/FLAG94fb0ac43 [2024-11-24 02:01:43,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:01:43,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i [2024-11-24 02:01:43,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data/6fd27520a/22df06599ae344659f8466e96e4ce7e7/FLAG94fb0ac43 [2024-11-24 02:01:43,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data/6fd27520a/22df06599ae344659f8466e96e4ce7e7 [2024-11-24 02:01:43,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:01:43,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:01:43,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:43,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:01:43,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:01:43,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d24fc17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43, skipping insertion in model container [2024-11-24 02:01:43,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,427 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:01:43,601 WARN L250 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_1ee0f4be-119f-4f05-940e-85dab662e723/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i[915,928] [2024-11-24 02:01:43,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:43,690 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:01:43,705 WARN L250 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_1ee0f4be-119f-4f05-940e-85dab662e723/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i[915,928] [2024-11-24 02:01:43,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:43,771 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:01:43,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43 WrapperNode [2024-11-24 02:01:43,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:43,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:43,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:01:43,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:01:43,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,836 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129 [2024-11-24 02:01:43,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:43,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:01:43,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:01:43,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:01:43,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,859 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,884 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]. [2024-11-24 02:01:43,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,900 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:01:43,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:01:43,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:01:43,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:01:43,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (1/1) ... [2024-11-24 02:01:43,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:43,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:43,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:01:43,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:01:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:01:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:01:43,988 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:01:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:01:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:01:43,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:01:44,073 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:01:44,075 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:01:44,419 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-24 02:01:44,420 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:01:44,430 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:01:44,430 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 02:01:44,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:44 BoogieIcfgContainer [2024-11-24 02:01:44,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:01:44,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:01:44,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:01:44,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:01:44,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:01:43" (1/3) ... [2024-11-24 02:01:44,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7231d4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:44, skipping insertion in model container [2024-11-24 02:01:44,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:43" (2/3) ... [2024-11-24 02:01:44,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7231d4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:44, skipping insertion in model container [2024-11-24 02:01:44,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:44" (3/3) ... [2024-11-24 02:01:44,441 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-71.i [2024-11-24 02:01:44,458 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:01:44,460 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-71.i that has 2 procedures, 57 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:01:44,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:44,549 INFO L333 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, 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;@5eb2fc10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:44,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:01:44,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 40 states have internal predecessors, (52), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 02:01:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 02:01:44,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:44,567 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1] [2024-11-24 02:01:44,568 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:44,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:44,575 INFO L85 PathProgramCache]: Analyzing trace with hash -888528068, now seen corresponding path program 1 times [2024-11-24 02:01:44,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:44,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000191414] [2024-11-24 02:01:44,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:44,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-24 02:01:44,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:44,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000191414] [2024-11-24 02:01:44,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000191414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:44,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999865710] [2024-11-24 02:01:44,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:44,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:44,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:44,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:44,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:01:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:45,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:01:45,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-24 02:01:45,060 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:45,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999865710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:45,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:01:45,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:01:45,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109836281] [2024-11-24 02:01:45,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:45,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:01:45,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:45,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:01:45,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:45,088 INFO L87 Difference]: Start difference. First operand has 57 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 40 states have internal predecessors, (52), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-24 02:01:45,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:45,114 INFO L93 Difference]: Finished difference Result 111 states and 176 transitions. [2024-11-24 02:01:45,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:01:45,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 100 [2024-11-24 02:01:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:45,123 INFO L225 Difference]: With dead ends: 111 [2024-11-24 02:01:45,123 INFO L226 Difference]: Without dead ends: 53 [2024-11-24 02:01:45,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:45,130 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:45,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:45,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-24 02:01:45,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-24 02:01:45,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.25) internal successors, (45), 36 states have internal predecessors, (45), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 02:01:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2024-11-24 02:01:45,185 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 100 [2024-11-24 02:01:45,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:45,186 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2024-11-24 02:01:45,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-24 02:01:45,186 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2024-11-24 02:01:45,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 02:01:45,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:45,191 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1] [2024-11-24 02:01:45,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:01:45,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:45,392 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:45,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:45,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1524818294, now seen corresponding path program 1 times [2024-11-24 02:01:45,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:45,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973916997] [2024-11-24 02:01:45,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:46,137 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 02:01:46,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:46,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973916997] [2024-11-24 02:01:46,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973916997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:46,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:46,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:01:46,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717675829] [2024-11-24 02:01:46,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:46,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:01:46,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:46,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:01:46,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:46,145 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 02:01:46,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:46,309 INFO L93 Difference]: Finished difference Result 108 states and 152 transitions. [2024-11-24 02:01:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:01:46,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2024-11-24 02:01:46,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:46,312 INFO L225 Difference]: With dead ends: 108 [2024-11-24 02:01:46,312 INFO L226 Difference]: Without dead ends: 58 [2024-11-24 02:01:46,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:46,313 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 33 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:46,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 145 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:46,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-24 02:01:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-24 02:01:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 02:01:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2024-11-24 02:01:46,341 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 100 [2024-11-24 02:01:46,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:46,341 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2024-11-24 02:01:46,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 02:01:46,342 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2024-11-24 02:01:46,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 02:01:46,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:46,345 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1] [2024-11-24 02:01:46,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:01:46,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:46,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:46,348 INFO L85 PathProgramCache]: Analyzing trace with hash 970466459, now seen corresponding path program 1 times [2024-11-24 02:01:46,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:46,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844718464] [2024-11-24 02:01:46,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:46,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 02:01:47,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:47,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844718464] [2024-11-24 02:01:47,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844718464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:47,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:47,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:01:47,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942809141] [2024-11-24 02:01:47,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:47,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:01:47,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:47,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:01:47,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:47,294 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 02:01:47,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:47,545 INFO L93 Difference]: Finished difference Result 133 states and 180 transitions. [2024-11-24 02:01:47,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:01:47,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 101 [2024-11-24 02:01:47,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:47,550 INFO L225 Difference]: With dead ends: 133 [2024-11-24 02:01:47,550 INFO L226 Difference]: Without dead ends: 78 [2024-11-24 02:01:47,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:47,551 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 18 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:47,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 193 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-24 02:01:47,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 66. [2024-11-24 02:01:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 48 states have (on average 1.25) internal successors, (60), 48 states have internal predecessors, (60), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 02:01:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2024-11-24 02:01:47,575 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 101 [2024-11-24 02:01:47,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:47,578 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2024-11-24 02:01:47,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 02:01:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2024-11-24 02:01:47,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 02:01:47,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:47,580 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1] [2024-11-24 02:01:47,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:01:47,580 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:47,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:47,581 INFO L85 PathProgramCache]: Analyzing trace with hash 697224194, now seen corresponding path program 1 times [2024-11-24 02:01:47,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:47,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393592897] [2024-11-24 02:01:47,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:47,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 02:01:48,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:48,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393592897] [2024-11-24 02:01:48,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393592897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:48,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:48,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:48,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027875918] [2024-11-24 02:01:48,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:48,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:48,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:48,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:48,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:48,237 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 02:01:48,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:48,390 INFO L93 Difference]: Finished difference Result 161 states and 215 transitions. [2024-11-24 02:01:48,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:01:48,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2024-11-24 02:01:48,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:48,395 INFO L225 Difference]: With dead ends: 161 [2024-11-24 02:01:48,396 INFO L226 Difference]: Without dead ends: 98 [2024-11-24 02:01:48,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:01:48,398 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 45 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:48,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 316 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:48,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-24 02:01:48,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 66. [2024-11-24 02:01:48,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 48 states have (on average 1.25) internal successors, (60), 48 states have internal predecessors, (60), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 02:01:48,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2024-11-24 02:01:48,422 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 102 [2024-11-24 02:01:48,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:48,422 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2024-11-24 02:01:48,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 02:01:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2024-11-24 02:01:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 02:01:48,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:48,428 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:48,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:01:48,428 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:48,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash 61907542, now seen corresponding path program 1 times [2024-11-24 02:01:48,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:48,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617239686] [2024-11-24 02:01:48,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:48,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:48,509 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:01:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:48,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 02:01:48,593 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 02:01:48,593 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 02:01:48,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:01:48,598 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-24 02:01:48,696 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 02:01:48,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 02:01:48 BoogieIcfgContainer [2024-11-24 02:01:48,703 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 02:01:48,703 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:01:48,703 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:01:48,704 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:01:48,704 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:44" (3/4) ... [2024-11-24 02:01:48,706 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 02:01:48,707 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:01:48,708 INFO L158 Benchmark]: Toolchain (without parser) took 5319.84ms. Allocated memory was 117.4MB in the beginning and 302.0MB in the end (delta: 184.5MB). Free memory was 85.5MB in the beginning and 182.9MB in the end (delta: -97.4MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2024-11-24 02:01:48,708 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:01:48,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.29ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 72.5MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:01:48,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.64ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 69.8MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:01:48,711 INFO L158 Benchmark]: Boogie Preprocessor took 82.59ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 66.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:01:48,711 INFO L158 Benchmark]: RCFGBuilder took 506.30ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 49.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 02:01:48,711 INFO L158 Benchmark]: TraceAbstraction took 4269.78ms. Allocated memory was 117.4MB in the beginning and 302.0MB in the end (delta: 184.5MB). Free memory was 48.4MB in the beginning and 183.0MB in the end (delta: -134.7MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2024-11-24 02:01:48,712 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 302.0MB. Free memory was 183.0MB in the beginning and 182.9MB in the end (delta: 92.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:01:48,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.29ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 72.5MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.64ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 69.8MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.59ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 66.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 506.30ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 49.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4269.78ms. Allocated memory was 117.4MB in the beginning and 302.0MB in the end (delta: 184.5MB). Free memory was 48.4MB in the beginning and 183.0MB in the end (delta: -134.7MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 302.0MB. Free memory was 183.0MB in the beginning and 182.9MB in the end (delta: 92.2kB). 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 someBinaryFLOATComparisonOperation at line 95, overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 90, overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someBinaryArithmeticFLOAToperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 16; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 8; [L25] unsigned char var_1_4 = 8; [L26] unsigned char var_1_5 = 32; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_7 = 1; [L29] float var_1_8 = 1.8; [L30] float var_1_9 = 9999999999999.75; [L31] float var_1_10 = 8.75; [L32] float var_1_11 = 255.75; [L33] unsigned short int var_1_12 = 10; [L34] unsigned char var_1_13 = 2; [L35] unsigned short int var_1_14 = 4; VAL [isInitial=0, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L99] isInitial = 1 [L100] FCALL initially() [L101] int k_loop; [L102] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L102] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L103] FCALL updateLastVariables() [L104] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L70] var_1_3 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L72] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L72] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L73] var_1_4 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L75] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L75] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L76] var_1_5 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L77] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L78] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L78] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L79] var_1_6 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L80] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L81] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L81] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L82] var_1_7 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_8=9/5, var_1_9=39999999999999/4] [L83] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_8=9/5, var_1_9=39999999999999/4] [L84] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L84] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L85] var_1_9 = __VERIFIER_nondet_float() [L86] CALL assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && 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=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L86] RET assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L87] var_1_10 = __VERIFIER_nondet_float() [L88] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L88] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L89] var_1_11 = __VERIFIER_nondet_float() [L90] CALL assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L90] RET assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L104] RET updateVariables() [L105] CALL step() [L39] unsigned char stepLocal_0 = var_1_6; VAL [isInitial=1, stepLocal_0=-255, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L40] COND TRUE \read(var_1_2) [L41] var_1_1 = (((((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) > (var_1_5)) ? ((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) : (var_1_5))) VAL [isInitial=1, stepLocal_0=-255, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L53] var_1_12 = 100 [L54] var_1_13 = var_1_3 [L55] var_1_14 = var_1_3 VAL [isInitial=1, stepLocal_0=-255, var_1_12=100, var_1_13=0, var_1_14=0, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L56] EXPR var_1_13 >> var_1_3 VAL [isInitial=1, stepLocal_0=-255, var_1_12=100, var_1_13=0, var_1_14=0, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1, var_1_8=9/5] [L56] COND TRUE (var_1_13 >> var_1_3) <= var_1_5 [L57] COND TRUE (25 > var_1_13) && var_1_7 [L58] var_1_8 = (var_1_9 + ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11)))) VAL [isInitial=1, stepLocal_0=-255, var_1_12=100, var_1_13=0, var_1_14=0, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1] [L105] RET step() [L106] CALL, EXPR property() [L95] EXPR (var_1_2 ? (var_1_1 == ((unsigned char) (((((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) > (var_1_5)) ? ((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) : (var_1_5))))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_7 ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_3))))) && (((var_1_13 >> var_1_3) <= var_1_5) ? (((25 > var_1_13) && var_1_7) ? (var_1_8 == ((float) (var_1_9 + ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11)))))) : (var_1_8 == ((float) var_1_9))) : (var_1_8 == ((float) var_1_9))) VAL [isInitial=1, var_1_12=100, var_1_13=0, var_1_14=0, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1] [L95] EXPR var_1_13 >> var_1_3 VAL [isInitial=1, var_1_12=100, var_1_13=0, var_1_14=0, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1] [L95] EXPR (var_1_2 ? (var_1_1 == ((unsigned char) (((((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) > (var_1_5)) ? ((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) : (var_1_5))))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_7 ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_3))))) && (((var_1_13 >> var_1_3) <= var_1_5) ? (((25 > var_1_13) && var_1_7) ? (var_1_8 == ((float) (var_1_9 + ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11)))))) : (var_1_8 == ((float) var_1_9))) : (var_1_8 == ((float) var_1_9))) VAL [isInitial=1, var_1_12=100, var_1_13=0, var_1_14=0, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1] [L95-L96] return ((((var_1_2 ? (var_1_1 == ((unsigned char) (((((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) > (var_1_5)) ? ((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) : (var_1_5))))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_7 ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_3))))) && (((var_1_13 >> var_1_3) <= var_1_5) ? (((25 > var_1_13) && var_1_7) ? (var_1_8 == ((float) (var_1_9 + ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11)))))) : (var_1_8 == ((float) var_1_9))) : (var_1_8 == ((float) var_1_9)))) && (var_1_12 == ((unsigned short int) 100))) && (var_1_13 == ((unsigned char) var_1_3))) && (var_1_14 == ((unsigned short int) var_1_3)) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_12=100, var_1_13=0, var_1_14=0, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1] [L19] reach_error() VAL [isInitial=1, var_1_12=100, var_1_13=0, var_1_14=0, var_1_1=127, var_1_2=1, var_1_3=0, var_1_4=127, var_1_5=4, var_1_6=-255, var_1_7=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 733 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 422 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 151 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 311 mSDtfsCounter, 151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 44 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 606 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 498 ConstructedInterpolants, 0 QuantifiedInterpolants, 1063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2072/2100 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 02:01:48,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC --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 6d3b9aeb878380bdc771becb29ac1261e3f51b87c750ca0ae0ce079e64216b40 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:01:51,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:01:51,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 02:01:51,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:01:51,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:01:51,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:01:51,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:01:51,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:01:51,640 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:01:51,641 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:01:51,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:01:51,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:01:51,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:01:51,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:01:51,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 02:01:51,643 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:01:51,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:01:51,644 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:01:51,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:01:51,645 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:01:51,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:51,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:51,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:51,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:51,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:01:51,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:51,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:51,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:51,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:51,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:01:51,650 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC 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 -> 6d3b9aeb878380bdc771becb29ac1261e3f51b87c750ca0ae0ce079e64216b40 [2024-11-24 02:01:52,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:01:52,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:01:52,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:01:52,045 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:01:52,046 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:01:52,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i [2024-11-24 02:01:55,310 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data/b15e313fc/a7076b28f8894eb7ac0e8a58a40bca19/FLAGd55bd4d2d [2024-11-24 02:01:55,577 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:01:55,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i [2024-11-24 02:01:55,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data/b15e313fc/a7076b28f8894eb7ac0e8a58a40bca19/FLAGd55bd4d2d [2024-11-24 02:01:55,616 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/data/b15e313fc/a7076b28f8894eb7ac0e8a58a40bca19 [2024-11-24 02:01:55,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:01:55,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:01:55,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:55,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:01:55,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:01:55,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:55" (1/1) ... [2024-11-24 02:01:55,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f584973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:55, skipping insertion in model container [2024-11-24 02:01:55,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:55" (1/1) ... [2024-11-24 02:01:55,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:01:55,840 WARN L250 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_1ee0f4be-119f-4f05-940e-85dab662e723/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i[915,928] [2024-11-24 02:01:55,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:55,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:01:55,934 WARN L250 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_1ee0f4be-119f-4f05-940e-85dab662e723/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-71.i[915,928] [2024-11-24 02:01:55,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:56,005 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:01:56,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56 WrapperNode [2024-11-24 02:01:56,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:56,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:56,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:01:56,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:01:56,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,072 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-11-24 02:01:56,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:56,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:01:56,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:01:56,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:01:56,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,109 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]. [2024-11-24 02:01:56,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,117 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:01:56,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:01:56,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:01:56,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:01:56,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (1/1) ... [2024-11-24 02:01:56,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:56,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:56,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:01:56,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:01:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:01:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 02:01:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:01:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:01:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:01:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:01:56,307 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:01:56,311 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:01:56,785 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-24 02:01:56,786 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:01:56,797 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:01:56,797 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 02:01:56,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:56 BoogieIcfgContainer [2024-11-24 02:01:56,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:01:56,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:01:56,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:01:56,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:01:56,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:01:55" (1/3) ... [2024-11-24 02:01:56,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55af67fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:56, skipping insertion in model container [2024-11-24 02:01:56,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:56" (2/3) ... [2024-11-24 02:01:56,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55af67fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:56, skipping insertion in model container [2024-11-24 02:01:56,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:56" (3/3) ... [2024-11-24 02:01:56,808 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-71.i [2024-11-24 02:01:56,824 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:01:56,826 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-71.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:01:56,893 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:56,909 INFO L333 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, 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;@41bdd325, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:56,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:01:56,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 02:01:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 02:01:56,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:56,927 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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] [2024-11-24 02:01:56,927 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:56,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:56,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1943513903, now seen corresponding path program 1 times [2024-11-24 02:01:56,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:01:56,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468468269] [2024-11-24 02:01:56,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:56,941 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 [2024-11-24 02:01:56,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:01:56,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 02:01:56,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee0f4be-119f-4f05-940e-85dab662e723/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 02:01:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:57,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 02:01:57,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-24 02:01:59,104 INFO L312 TraceCheckSpWp]: Computing backward predicates...