./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c --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_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/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_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/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_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/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 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:18:42,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:18:42,492 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:18:42,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:18:42,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:18:42,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:18:42,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:18:42,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:18:42,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:18:42,531 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:18:42,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:18:42,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:18:42,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:18:42,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:18:42,531 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:18:42,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:18:42,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:18:42,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:18:42,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:18:42,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:18:42,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:18:42,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:18:42,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:18:42,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:18:42,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:18:42,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:18:42,533 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:18:42,533 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:18:42,534 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:18:42,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:18:42,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:18:42,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:18:42,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:18:42,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:18:42,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:18:42,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:18:42,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:18:42,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:18:42,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:18:42,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:18:42,535 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:18:42,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:18:42,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:18:42,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:18:42,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:18:42,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:18:42,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:18:42,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:18:42,536 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_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/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 -> 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 [2024-11-24 00:18:42,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:18:42,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:18:42,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:18:42,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:18:42,850 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:18:42,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2024-11-24 00:18:45,780 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/data/581e27fa5/2f0670c1b2ea4c7995d983078323bf1d/FLAGf9c16fc5c [2024-11-24 00:18:46,095 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:18:46,096 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2024-11-24 00:18:46,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/data/581e27fa5/2f0670c1b2ea4c7995d983078323bf1d/FLAGf9c16fc5c [2024-11-24 00:18:46,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/data/581e27fa5/2f0670c1b2ea4c7995d983078323bf1d [2024-11-24 00:18:46,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:18:46,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:18:46,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:18:46,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:18:46,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:18:46,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f5105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46, skipping insertion in model container [2024-11-24 00:18:46,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:18:46,462 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_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2024-11-24 00:18:46,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:18:46,484 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:18:46,549 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_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2024-11-24 00:18:46,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:18:46,568 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:18:46,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46 WrapperNode [2024-11-24 00:18:46,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:18:46,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:18:46,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:18:46,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:18:46,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,644 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2024-11-24 00:18:46,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:18:46,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:18:46,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:18:46,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:18:46,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,719 INFO L175 MemorySlicer]: Split 85 memory accesses to 15 slices as follows [2, 5, 3, 5, 3, 7, 2, 6, 4, 12, 18, 1, 1, 5, 11]. 21 percent of accesses are in the largest equivalence class. The 45 initializations are split as follows [2, 5, 3, 5, 3, 7, 2, 4, 0, 7, 0, 1, 1, 1, 4]. The 5 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 2]. [2024-11-24 00:18:46,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:18:46,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:18:46,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:18:46,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:18:46,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (1/1) ... [2024-11-24 00:18:46,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:18:46,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:18:46,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:18:46,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:18:46,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 00:18:46,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 00:18:46,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 00:18:46,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 00:18:46,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-24 00:18:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-24 00:18:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-24 00:18:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:18:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2024-11-24 00:18:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2024-11-24 00:18:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:18:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:18:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 00:18:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 00:18:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 00:18:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 00:18:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 00:18:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 00:18:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 00:18:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 00:18:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 00:18:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-24 00:18:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-24 00:18:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-24 00:18:46,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 00:18:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 00:18:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-24 00:18:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 00:18:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2024-11-24 00:18:46,890 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2024-11-24 00:18:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:18:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:18:46,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:18:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2024-11-24 00:18:46,890 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2024-11-24 00:18:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:18:47,192 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:18:47,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:18:47,922 INFO L? ?]: Removed 153 outVars from TransFormulas that were not future-live. [2024-11-24 00:18:47,922 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:18:47,940 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:18:47,942 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-24 00:18:47,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:18:47 BoogieIcfgContainer [2024-11-24 00:18:47,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:18:47,947 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:18:47,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:18:47,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:18:47,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:18:46" (1/3) ... [2024-11-24 00:18:47,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623aa1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:18:47, skipping insertion in model container [2024-11-24 00:18:47,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:46" (2/3) ... [2024-11-24 00:18:47,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623aa1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:18:47, skipping insertion in model container [2024-11-24 00:18:47,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:18:47" (3/3) ... [2024-11-24 00:18:48,001 INFO L128 eAbstractionObserver]: Analyzing ICFG ofuf_4.c [2024-11-24 00:18:48,022 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:18:48,024 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ofuf_4.c that has 4 procedures, 108 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-24 00:18:48,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:18:48,115 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;@2877002, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:18:48,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:18:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 95 states have (on average 1.5894736842105264) internal successors, (151), 96 states have internal predecessors, (151), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-24 00:18:48,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-24 00:18:48,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:48,133 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 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 00:18:48,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:48,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:48,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1455660108, now seen corresponding path program 1 times [2024-11-24 00:18:48,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:18:48,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929853258] [2024-11-24 00:18:48,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:48,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:18:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:48,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:18:48,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:18:48,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929853258] [2024-11-24 00:18:48,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929853258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:18:48,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:18:48,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:18:48,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162329925] [2024-11-24 00:18:48,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:48,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:18:48,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:18:48,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:18:48,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:18:48,591 INFO L87 Difference]: Start difference. First operand has 108 states, 95 states have (on average 1.5894736842105264) internal successors, (151), 96 states have internal predecessors, (151), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:18:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:48,637 INFO L93 Difference]: Finished difference Result 211 states and 334 transitions. [2024-11-24 00:18:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:18:48,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-24 00:18:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:48,648 INFO L225 Difference]: With dead ends: 211 [2024-11-24 00:18:48,648 INFO L226 Difference]: Without dead ends: 102 [2024-11-24 00:18:48,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 00:18:48,655 INFO L435 NwaCegarLoop]: 158 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, 158 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 00:18:48,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:18:48,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-24 00:18:48,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-24 00:18:48,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 90 states have (on average 1.511111111111111) internal successors, (136), 91 states have internal predecessors, (136), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:18:48,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 151 transitions. [2024-11-24 00:18:48,706 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 151 transitions. Word has length 26 [2024-11-24 00:18:48,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:48,706 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 151 transitions. [2024-11-24 00:18:48,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:18:48,707 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2024-11-24 00:18:48,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-24 00:18:48,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:48,711 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 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 00:18:48,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:18:48,712 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:48,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:48,715 INFO L85 PathProgramCache]: Analyzing trace with hash 2029960562, now seen corresponding path program 1 times [2024-11-24 00:18:48,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:18:48,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577171226] [2024-11-24 00:18:48,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:48,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:18:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:18:49,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:18:49,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577171226] [2024-11-24 00:18:49,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577171226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:18:49,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:18:49,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:18:49,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127001549] [2024-11-24 00:18:49,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:49,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:18:49,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:18:49,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:18:49,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:18:49,155 INFO L87 Difference]: Start difference. First operand 102 states and 151 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:18:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:49,211 INFO L93 Difference]: Finished difference Result 123 states and 178 transitions. [2024-11-24 00:18:49,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:18:49,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-24 00:18:49,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:49,217 INFO L225 Difference]: With dead ends: 123 [2024-11-24 00:18:49,217 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:18:49,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:18:49,222 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:49,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 432 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:18:49,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:18:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:18:49,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:18:49,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:18:49,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-24 00:18:49,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:49,225 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:18:49,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:18:49,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:18:49,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:18:49,231 INFO L782 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:18:49,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:18:49,235 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:18:49,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:18:49,282 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:18:49,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:18:49 BoogieIcfgContainer [2024-11-24 00:18:49,296 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:18:49,297 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:18:49,297 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:18:49,297 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:18:49,298 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:18:47" (3/4) ... [2024-11-24 00:18:49,301 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:18:49,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2024-11-24 00:18:49,307 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2024-11-24 00:18:49,307 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2024-11-24 00:18:49,324 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2024-11-24 00:18:49,325 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-24 00:18:49,326 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-24 00:18:49,326 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:18:49,327 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:18:49,327 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:18:49,472 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:18:49,472 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:18:49,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:18:49,474 INFO L158 Benchmark]: Toolchain (without parser) took 3342.61ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 88.0MB in the end (delta: 18.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-11-24 00:18:49,475 INFO L158 Benchmark]: CDTParser took 1.51ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:18:49,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.43ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 88.6MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:18:49,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.17ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 85.3MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:18:49,476 INFO L158 Benchmark]: Boogie Preprocessor took 149.75ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 79.2MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:18:49,476 INFO L158 Benchmark]: RCFGBuilder took 1147.12ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 35.4MB in the end (delta: 43.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-24 00:18:49,478 INFO L158 Benchmark]: TraceAbstraction took 1349.21ms. Allocated memory is still 142.6MB. Free memory was 34.8MB in the beginning and 97.1MB in the end (delta: -62.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:18:49,478 INFO L158 Benchmark]: Witness Printer took 175.74ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 88.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:18:49,480 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.43ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 88.6MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.17ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 85.3MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 149.75ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 79.2MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1147.12ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 35.4MB in the end (delta: 43.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1349.21ms. Allocated memory is still 142.6MB. Free memory was 34.8MB in the beginning and 97.1MB in the end (delta: -62.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 175.74ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 88.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 463]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 590 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 287 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 303 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-24 00:18:49,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0b9599-24a0-4d2b-8135-c0c72787dc8e/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 Writing output log to file Ultimate.log Result: TRUE