./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.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_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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_6155919e-311a-41bc-a351-2235b165647e/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 1a326c2fbbb6417ff70dc27510b2ae37e6b7c3658951387b9f90f15bb09c3ae0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:29:45,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:29:45,462 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:29:45,473 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:29:45,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:29:45,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:29:45,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:29:45,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:29:45,523 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:29:45,524 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:29:45,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:29:45,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:29:45,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:29:45,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:29:45,526 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:29:45,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:29:45,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:29:45,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:29:45,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:29:45,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:29:45,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:29:45,528 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:29:45,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:29:45,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:45,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:29:45,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:29:45,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:29:45,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:29:45,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:45,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:29:45,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:29:45,531 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:29:45,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:29:45,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:29:45,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:29:45,532 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:29:45,532 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:29:45,532 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:29:45,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:29:45,532 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_6155919e-311a-41bc-a351-2235b165647e/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 -> 1a326c2fbbb6417ff70dc27510b2ae37e6b7c3658951387b9f90f15bb09c3ae0 [2024-11-24 01:29:45,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:29:45,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:29:45,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:29:45,888 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:29:45,889 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:29:45,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i [2024-11-24 01:29:49,433 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data/d7a1646e4/83cb8c3cc96d4a10b5b627b0c7b0aac8/FLAGd531e6051 [2024-11-24 01:29:49,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:29:49,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i [2024-11-24 01:29:49,814 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data/d7a1646e4/83cb8c3cc96d4a10b5b627b0c7b0aac8/FLAGd531e6051 [2024-11-24 01:29:50,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data/d7a1646e4/83cb8c3cc96d4a10b5b627b0c7b0aac8 [2024-11-24 01:29:50,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:29:50,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:29:50,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:29:50,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:29:50,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:29:50,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf6de3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50, skipping insertion in model container [2024-11-24 01:29:50,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:29:50,268 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_6155919e-311a-41bc-a351-2235b165647e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i[915,928] [2024-11-24 01:29:50,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:29:50,347 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:29:50,363 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_6155919e-311a-41bc-a351-2235b165647e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i[915,928] [2024-11-24 01:29:50,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:29:50,425 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:29:50,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50 WrapperNode [2024-11-24 01:29:50,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:29:50,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:29:50,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:29:50,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:29:50,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,503 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2024-11-24 01:29:50,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:29:50,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:29:50,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:29:50,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:29:50,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,540 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 01:29:50,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,549 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:29:50,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:29:50,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:29:50,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:29:50,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (1/1) ... [2024-11-24 01:29:50,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:50,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:50,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:29:50,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:29:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:29:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:29:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:29:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:29:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:29:50,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:29:50,748 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:29:50,751 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:29:51,199 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-24 01:29:51,199 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:29:51,218 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:29:51,218 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:29:51,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:29:51 BoogieIcfgContainer [2024-11-24 01:29:51,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:29:51,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:29:51,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:29:51,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:29:51,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:29:50" (1/3) ... [2024-11-24 01:29:51,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9000ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:29:51, skipping insertion in model container [2024-11-24 01:29:51,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:50" (2/3) ... [2024-11-24 01:29:51,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9000ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:29:51, skipping insertion in model container [2024-11-24 01:29:51,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:29:51" (3/3) ... [2024-11-24 01:29:51,233 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-83.i [2024-11-24 01:29:51,256 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:29:51,257 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-83.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:29:51,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:29:51,346 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;@6dc37853, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:29:51,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:29:51,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 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 01:29:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:29:51,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:51,364 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] [2024-11-24 01:29:51,364 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:29:51,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:51,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1078533170, now seen corresponding path program 1 times [2024-11-24 01:29:51,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:51,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151817695] [2024-11-24 01:29:51,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:51,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:51,793 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 01:29:51,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:51,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151817695] [2024-11-24 01:29:51,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151817695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:51,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406844245] [2024-11-24 01:29:51,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:51,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:51,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:51,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:51,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:29:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:51,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:29:51,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:51,994 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 01:29:51,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:29:51,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406844245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:51,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:29:51,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:29:52,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37991113] [2024-11-24 01:29:52,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:52,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:29:52,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:52,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:29:52,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:29:52,033 INFO L87 Difference]: Start difference. First operand has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 01:29:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:52,068 INFO L93 Difference]: Finished difference Result 89 states and 144 transitions. [2024-11-24 01:29:52,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:29:52,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 95 [2024-11-24 01:29:52,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:52,079 INFO L225 Difference]: With dead ends: 89 [2024-11-24 01:29:52,080 INFO L226 Difference]: Without dead ends: 42 [2024-11-24 01:29:52,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 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 01:29:52,092 INFO L435 NwaCegarLoop]: 63 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, 63 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 01:29:52,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:29:52,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-24 01:29:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-24 01:29:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 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 01:29:52,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2024-11-24 01:29:52,137 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 59 transitions. Word has length 95 [2024-11-24 01:29:52,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:52,137 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 59 transitions. [2024-11-24 01:29:52,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 01:29:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 59 transitions. [2024-11-24 01:29:52,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:29:52,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:52,142 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] [2024-11-24 01:29:52,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:29:52,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:29:52,343 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:29:52,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:52,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2044954040, now seen corresponding path program 1 times [2024-11-24 01:29:52,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:52,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870387107] [2024-11-24 01:29:52,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:52,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:29:52,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823453395] [2024-11-24 01:29:52,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:52,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:52,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:52,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:52,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:29:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:29:52,697 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:29:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:29:52,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:29:52,834 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:29:52,835 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:29:52,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:29:53,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:53,041 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 01:29:53,115 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:29:53,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:29:53 BoogieIcfgContainer [2024-11-24 01:29:53,119 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:29:53,120 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:29:53,120 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:29:53,120 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:29:53,121 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:29:51" (3/4) ... [2024-11-24 01:29:53,123 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:29:53,124 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:29:53,125 INFO L158 Benchmark]: Toolchain (without parser) took 3112.54ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 71.6MB in the end (delta: 47.1MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-24 01:29:53,126 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:29:53,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.46ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 105.6MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:29:53,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.34ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 102.6MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:29:53,127 INFO L158 Benchmark]: Boogie Preprocessor took 57.56ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 97.8MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:29:53,127 INFO L158 Benchmark]: RCFGBuilder took 656.11ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 80.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:29:53,127 INFO L158 Benchmark]: TraceAbstraction took 1897.63ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 72.2MB in the end (delta: 7.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-11-24 01:29:53,128 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 142.6MB. Free memory was 72.2MB in the beginning and 71.6MB in the end (delta: 608.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:29:53,130 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.46ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 105.6MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.34ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 102.6MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.56ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 97.8MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 656.11ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 80.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1897.63ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 72.2MB in the end (delta: 7.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 142.6MB. Free memory was 72.2MB in the beginning and 71.6MB in the end (delta: 608.1kB). 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 someBinaryArithmeticDOUBLEoperation at line 50, overapproximation of someBinaryDOUBLEComparisonOperation at line 69, overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of someBinaryDOUBLEComparisonOperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 25; [L25] unsigned char var_1_4 = 4; [L26] double var_1_8 = 49.8; [L27] double var_1_9 = 127.8; [L28] double var_1_10 = 7.2; [L29] signed char var_1_11 = -1; [L30] signed char var_1_12 = 2; [L31] signed char var_1_13 = 4; [L32] signed char var_1_14 = 16; [L33] unsigned short int var_1_15 = 0; VAL [isInitial=0, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L87] isInitial = 1 [L88] FCALL initially() [L89] int k_loop; [L90] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L90] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L91] FCALL updateLastVariables() [L92] CALL updateVariables() [L56] var_1_2 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L57] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L58] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L58] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=25, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L59] var_1_3 = __VERIFIER_nondet_ushort() [L60] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L60] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L61] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L61] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=4, var_1_8=249/5, var_1_9=639/5] [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_8=249/5, var_1_9=639/5] [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_8=249/5, var_1_9=639/5] [L64] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_8=249/5, var_1_9=639/5] [L64] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_8=249/5, var_1_9=639/5] [L65] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5, var_1_9=639/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5, var_1_9=639/5] [L65] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5, var_1_9=639/5] [L66] var_1_9 = __VERIFIER_nondet_double() [L67] 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=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L67] 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=36/5, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L68] var_1_10 = __VERIFIER_nondet_double() [L69] 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=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L69] 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=-1, var_1_12=2, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L70] var_1_12 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L71] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L72] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L72] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=4, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L73] var_1_13 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L74] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L75] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L75] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=16, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L76] var_1_14 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L77] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L78] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L78] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, var_1_11=-1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L92] RET updateVariables() [L93] CALL step() [L37] var_1_11 = ((var_1_12 + var_1_13) - ((((25) < (var_1_14)) ? (25) : (var_1_14)))) [L38] var_1_15 = var_1_14 [L39] signed long int stepLocal_0 = var_1_3 / var_1_4; VAL [isInitial=1, stepLocal_0=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=128, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L40] COND TRUE \read(var_1_2) [L41] var_1_1 = (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) VAL [isInitial=1, stepLocal_0=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=253, var_1_2=-255, var_1_3=253, var_1_4=255, var_1_8=249/5] [L49] COND TRUE var_1_11 >= ((var_1_3 / var_1_4) + (var_1_1 * var_1_11)) [L50] var_1_8 = (var_1_9 + ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))) VAL [isInitial=1, stepLocal_0=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=253, var_1_2=-255, var_1_3=253, var_1_4=255] [L93] RET step() [L94] CALL, EXPR property() [L83-L84] return (((var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((var_1_15 * var_1_15)) < (var_1_11)) ? ((var_1_15 * var_1_15)) : (var_1_11)))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) 5)))) && ((var_1_11 >= ((var_1_3 / var_1_4) + (var_1_1 * var_1_11))) ? (var_1_8 == ((double) (var_1_9 + ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))))) : (var_1_8 == ((double) var_1_9)))) && (var_1_11 == ((signed char) ((var_1_12 + var_1_13) - ((((25) < (var_1_14)) ? (25) : (var_1_14))))))) && (var_1_15 == ((unsigned short int) var_1_14)) ; VAL [\result=0, isInitial=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=253, var_1_2=-255, var_1_3=253, var_1_4=255] [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=253, var_1_2=-255, var_1_3=253, var_1_4=255] [L19] reach_error() VAL [isInitial=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_1=253, var_1_2=-255, var_1_3=253, var_1_4=255] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 63 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 812/840 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 01:29:53,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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_6155919e-311a-41bc-a351-2235b165647e/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 1a326c2fbbb6417ff70dc27510b2ae37e6b7c3658951387b9f90f15bb09c3ae0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:29:55,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:29:55,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:29:55,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:29:55,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:29:55,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:29:55,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:29:55,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:29:55,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:29:55,930 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:29:55,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:29:55,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:29:55,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:29:55,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:29:55,932 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:29:55,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:29:55,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:29:55,933 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:29:55,933 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:29:55,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:29:55,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:29:55,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:29:55,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:29:55,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:29:55,934 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:29:55,934 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:29:55,934 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:29:55,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:29:55,935 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:29:55,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:29:55,935 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:29:55,936 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:29:55,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:29:55,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:29:55,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:55,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:29:55,936 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:55,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:29:55,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:29:55,938 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:29:55,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:29:55,938 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_6155919e-311a-41bc-a351-2235b165647e/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 -> 1a326c2fbbb6417ff70dc27510b2ae37e6b7c3658951387b9f90f15bb09c3ae0 [2024-11-24 01:29:56,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:29:56,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:29:56,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:29:56,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:29:56,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:29:56,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i [2024-11-24 01:29:59,483 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data/3324e6341/975efc19040a4fd7be1a53695430d136/FLAG096c674aa [2024-11-24 01:29:59,745 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:29:59,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i [2024-11-24 01:29:59,754 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data/3324e6341/975efc19040a4fd7be1a53695430d136/FLAG096c674aa [2024-11-24 01:29:59,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/data/3324e6341/975efc19040a4fd7be1a53695430d136 [2024-11-24 01:29:59,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:29:59,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:29:59,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:29:59,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:29:59,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:29:59,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:29:59" (1/1) ... [2024-11-24 01:29:59,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2f84a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:59, skipping insertion in model container [2024-11-24 01:29:59,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:29:59" (1/1) ... [2024-11-24 01:29:59,812 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:30:00,026 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_6155919e-311a-41bc-a351-2235b165647e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i[915,928] [2024-11-24 01:30:00,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:30:00,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:30:00,160 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_6155919e-311a-41bc-a351-2235b165647e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-83.i[915,928] [2024-11-24 01:30:00,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:30:00,241 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:30:00,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00 WrapperNode [2024-11-24 01:30:00,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:30:00,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:30:00,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:30:00,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:30:00,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,278 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,318 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-24 01:30:00,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:30:00,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:30:00,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:30:00,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:30:00,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,343 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,363 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 01:30:00,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,380 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:30:00,408 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:30:00,408 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:30:00,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:30:00,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (1/1) ... [2024-11-24 01:30:00,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:30:00,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:00,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:30:00,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:30:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:30:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:30:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:30:00,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:30:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:30:00,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:30:00,567 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:30:00,569 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:30:01,823 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-24 01:30:01,823 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:30:01,835 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:30:01,835 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:30:01,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:30:01 BoogieIcfgContainer [2024-11-24 01:30:01,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:30:01,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:30:01,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:30:01,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:30:01,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:29:59" (1/3) ... [2024-11-24 01:30:01,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6a46a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:30:01, skipping insertion in model container [2024-11-24 01:30:01,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:00" (2/3) ... [2024-11-24 01:30:01,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6a46a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:30:01, skipping insertion in model container [2024-11-24 01:30:01,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:30:01" (3/3) ... [2024-11-24 01:30:01,848 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-83.i [2024-11-24 01:30:01,865 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:30:01,866 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-83.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:30:01,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:30:01,946 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;@40596d9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:30:01,946 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:30:01,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 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 01:30:01,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:30:01,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:01,963 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] [2024-11-24 01:30:01,964 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:01,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1078533170, now seen corresponding path program 1 times [2024-11-24 01:30:02,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:30:02,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506747239] [2024-11-24 01:30:02,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:02,011 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 01:30:02,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:30:02,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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 01:30:02,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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 01:30:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:02,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:30:02,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:02,332 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 01:30:02,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:30:02,333 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:30:02,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506747239] [2024-11-24 01:30:02,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506747239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:02,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:02,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:30:02,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881290432] [2024-11-24 01:30:02,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:02,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:30:02,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:30:02,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:30:02,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:30:02,363 INFO L87 Difference]: Start difference. First operand has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 01:30:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:02,390 INFO L93 Difference]: Finished difference Result 89 states and 144 transitions. [2024-11-24 01:30:02,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:30:02,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-11-24 01:30:02,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:02,401 INFO L225 Difference]: With dead ends: 89 [2024-11-24 01:30:02,402 INFO L226 Difference]: Without dead ends: 42 [2024-11-24 01:30:02,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 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 01:30:02,411 INFO L435 NwaCegarLoop]: 63 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, 63 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 01:30:02,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:30:02,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-24 01:30:02,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-24 01:30:02,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 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 01:30:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2024-11-24 01:30:02,468 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 59 transitions. Word has length 95 [2024-11-24 01:30:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:02,468 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 59 transitions. [2024-11-24 01:30:02,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-24 01:30:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 59 transitions. [2024-11-24 01:30:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:30:02,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:02,472 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] [2024-11-24 01:30:02,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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)] Ended with exit code 0 [2024-11-24 01:30:02,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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 [2024-11-24 01:30:02,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:02,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:02,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2044954040, now seen corresponding path program 1 times [2024-11-24 01:30:02,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:30:02,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583284141] [2024-11-24 01:30:02,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:02,675 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 01:30:02,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:30:02,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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 01:30:02,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6155919e-311a-41bc-a351-2235b165647e/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 (3)] Waiting until timeout for monitored process [2024-11-24 01:30:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:03,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:30:03,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:55,907 WARN L286 SmtUtils]: Spent 20.43s on a formula simplification that was a NOOP. DAG size: 84 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)