./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/css2003.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/css2003.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB --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 3cc40df30b48f0dde21200c49a8e3c2dcaea3151eb010f51f5a34e59bc04994b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:15:32,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:15:32,717 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:15:32,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:15:32,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:15:32,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:15:32,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:15:32,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:15:32,774 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:15:32,774 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:15:32,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:15:32,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:15:32,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:15:32,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:15:32,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:15:32,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:15:32,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:15:32,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:15:32,778 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:15:32,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:15:32,778 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:15:32,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:15:32,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:15:32,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:15:32,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:15:32,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:15:32,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:15:32,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:15:32,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:15:32,780 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:15:32,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:15:32,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:15:32,780 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_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3cc40df30b48f0dde21200c49a8e3c2dcaea3151eb010f51f5a34e59bc04994b [2024-11-27 20:15:33,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:15:33,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:15:33,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:15:33,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:15:33,221 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:15:33,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-lit/css2003.i [2024-11-27 20:15:37,159 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/data/d40decf99/bf3b5e72eb254e50860b19187259e2fb/FLAG8cbd014c0 [2024-11-27 20:15:37,570 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:15:37,571 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/sv-benchmarks/c/loop-lit/css2003.i [2024-11-27 20:15:37,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/data/d40decf99/bf3b5e72eb254e50860b19187259e2fb/FLAG8cbd014c0 [2024-11-27 20:15:37,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/data/d40decf99/bf3b5e72eb254e50860b19187259e2fb [2024-11-27 20:15:37,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:15:37,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:15:37,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:15:37,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:15:37,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:15:37,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:15:37" (1/1) ... [2024-11-27 20:15:37,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b36a4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:37, skipping insertion in model container [2024-11-27 20:15:37,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:15:37" (1/1) ... [2024-11-27 20:15:37,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:15:37,920 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_88d68fd0-1688-430f-8722-9fd6294e7ab0/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2024-11-27 20:15:37,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:15:37,960 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:15:37,977 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_88d68fd0-1688-430f-8722-9fd6294e7ab0/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2024-11-27 20:15:37,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:15:38,008 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:15:38,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38 WrapperNode [2024-11-27 20:15:38,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:15:38,013 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:15:38,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:15:38,014 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:15:38,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,062 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-11-27 20:15:38,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:15:38,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:15:38,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:15:38,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:15:38,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,089 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]. [2024-11-27 20:15:38,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,093 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:15:38,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:15:38,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:15:38,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:15:38,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (1/1) ... [2024-11-27 20:15:38,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:15:38,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:15:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:15:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:15:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:15:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:15:38,292 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:15:38,295 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:15:38,463 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-27 20:15:38,464 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:15:38,473 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:15:38,474 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:15:38,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:38 BoogieIcfgContainer [2024-11-27 20:15:38,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:15:38,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:15:38,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:15:38,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:15:38,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:15:37" (1/3) ... [2024-11-27 20:15:38,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1e47ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:15:38, skipping insertion in model container [2024-11-27 20:15:38,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:38" (2/3) ... [2024-11-27 20:15:38,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1e47ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:15:38, skipping insertion in model container [2024-11-27 20:15:38,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:38" (3/3) ... [2024-11-27 20:15:38,493 INFO L128 eAbstractionObserver]: Analyzing ICFG css2003.i [2024-11-27 20:15:38,518 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:15:38,522 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG css2003.i that has 1 procedures, 13 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:15:38,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:15:38,648 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;@21b89732, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:15:38,648 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:15:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2024-11-27 20:15:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-27 20:15:38,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:38,666 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:38,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:15:38,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:38,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1806937546, now seen corresponding path program 1 times [2024-11-27 20:15:38,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:38,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653634674] [2024-11-27 20:15:38,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:38,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:39,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:39,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653634674] [2024-11-27 20:15:39,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653634674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:39,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:15:39,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:15:39,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756396672] [2024-11-27 20:15:39,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:39,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:15:39,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:39,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:15:39,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:15:39,375 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-27 20:15:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:39,487 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2024-11-27 20:15:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:15:39,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) Word has length 7 [2024-11-27 20:15:39,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:39,503 INFO L225 Difference]: With dead ends: 27 [2024-11-27 20:15:39,503 INFO L226 Difference]: Without dead ends: 12 [2024-11-27 20:15:39,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:15:39,521 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:39,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:15:39,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-27 20:15:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-27 20:15:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-27 20:15:39,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-27 20:15:39,575 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2024-11-27 20:15:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:39,577 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-27 20:15:39,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-27 20:15:39,578 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-27 20:15:39,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-27 20:15:39,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:39,580 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:39,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:15:39,582 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:15:39,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:39,583 INFO L85 PathProgramCache]: Analyzing trace with hash -199840751, now seen corresponding path program 1 times [2024-11-27 20:15:39,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:39,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751764249] [2024-11-27 20:15:39,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:39,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:40,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:40,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751764249] [2024-11-27 20:15:40,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751764249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:40,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522905273] [2024-11-27 20:15:40,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:40,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:40,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:40,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:40,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:15:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:40,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:15:40,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:40,483 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:40,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522905273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:40,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:40,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-27 20:15:40,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237205300] [2024-11-27 20:15:40,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:40,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:15:40,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:40,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:15:40,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:15:40,775 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2024-11-27 20:15:40,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:40,887 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-27 20:15:40,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:15:40,888 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) Word has length 11 [2024-11-27 20:15:40,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:40,888 INFO L225 Difference]: With dead ends: 15 [2024-11-27 20:15:40,888 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:15:40,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:15:40,890 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:40,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:15:40,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:15:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:15:40,895 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) [2024-11-27 20:15:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:15:40,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-27 20:15:40,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:40,897 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:15:40,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2024-11-27 20:15:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:15:40,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:15:40,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:15:40,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:15:41,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:41,106 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-27 20:15:41,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:15:41,172 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:15:41,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:15:41 BoogieIcfgContainer [2024-11-27 20:15:41,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:15:41,196 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:15:41,196 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:15:41,197 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:15:41,197 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:38" (3/4) ... [2024-11-27 20:15:41,201 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:15:41,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-27 20:15:41,218 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:15:41,218 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:15:41,219 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:15:41,332 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:15:41,332 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:15:41,332 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:15:41,334 INFO L158 Benchmark]: Toolchain (without parser) took 3706.30ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 45.7MB in the end (delta: 47.0MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2024-11-27 20:15:41,335 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:41,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.22ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.6MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:15:41,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.50ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:41,336 INFO L158 Benchmark]: Boogie Preprocessor took 42.30ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.5MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:15:41,336 INFO L158 Benchmark]: RCFGBuilder took 368.09ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 70.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:15:41,337 INFO L158 Benchmark]: TraceAbstraction took 2716.19ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 50.3MB in the end (delta: 19.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-27 20:15:41,337 INFO L158 Benchmark]: Witness Printer took 136.01ms. Allocated memory is still 117.4MB. Free memory was 50.3MB in the beginning and 45.7MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:41,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.22ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.6MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.50ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.30ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.5MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 368.09ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 70.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2716.19ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 50.3MB in the end (delta: 19.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * Witness Printer took 136.01ms. Allocated memory is still 117.4MB. Free memory was 50.3MB in the beginning and 45.7MB in the end (delta: 4.6MB). 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 - PositiveResult [Line: 19]: 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 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 3 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/9 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 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((0 <= k) && (k <= 1)) && (i == 1)) || (((2 <= i) && (1 <= ((long long) i + k))) && (((long long) i + k) <= 2))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:15:41,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d68fd0-1688-430f-8722-9fd6294e7ab0/bin/uautomizer-verify-aQ6SnzHsRB/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