./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/count_by_1_variant.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_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/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_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/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_084f29db-d2bb-4226-954a-ea23cf839c07/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 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:37:34,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:37:34,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:37:34,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:37:34,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:37:34,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:37:34,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:37:34,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:37:34,395 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:37:34,395 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:37:34,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:37:34,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:37:34,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:37:34,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:37:34,396 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:37:34,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:37:34,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:37:34,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:37:34,398 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:37:34,398 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:37:34,401 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:37:34,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:37:34,401 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:37:34,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:37:34,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:37:34,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:37:34,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:37:34,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:37:34,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:37:34,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:37:34,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:37:34,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:37:34,403 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_084f29db-d2bb-4226-954a-ea23cf839c07/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 -> 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 [2024-11-28 03:37:34,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:37:34,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:37:34,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:37:34,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:37:34,737 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:37:34,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-new/count_by_1_variant.i [2024-11-28 03:37:37,676 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/data/cf8f46b22/b3f15e0940d447a9bf2ef9ffb67e8dc8/FLAG2ec9a8b44 [2024-11-28 03:37:37,907 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:37:37,908 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/sv-benchmarks/c/loop-new/count_by_1_variant.i [2024-11-28 03:37:37,918 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/data/cf8f46b22/b3f15e0940d447a9bf2ef9ffb67e8dc8/FLAG2ec9a8b44 [2024-11-28 03:37:38,232 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/data/cf8f46b22/b3f15e0940d447a9bf2ef9ffb67e8dc8 [2024-11-28 03:37:38,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:37:38,236 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:37:38,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:37:38,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:37:38,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:37:38,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7f97d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38, skipping insertion in model container [2024-11-28 03:37:38,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:37:38,417 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_084f29db-d2bb-4226-954a-ea23cf839c07/sv-benchmarks/c/loop-new/count_by_1_variant.i[891,904] [2024-11-28 03:37:38,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:37:38,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:37:38,447 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_084f29db-d2bb-4226-954a-ea23cf839c07/sv-benchmarks/c/loop-new/count_by_1_variant.i[891,904] [2024-11-28 03:37:38,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:37:38,462 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:37:38,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38 WrapperNode [2024-11-28 03:37:38,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:37:38,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:37:38,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:37:38,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:37:38,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,489 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2024-11-28 03:37:38,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:37:38,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:37:38,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:37:38,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:37:38,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,505 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]. [2024-11-28 03:37:38,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,507 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:37:38,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:37:38,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:37:38,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:37:38,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (1/1) ... [2024-11-28 03:37:38,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:37:38,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:38,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:37:38,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:37:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:37:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:37:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:37:38,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:37:38,643 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:37:38,646 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:37:38,732 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-28 03:37:38,732 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:37:38,741 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:37:38,741 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:37:38,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:38 BoogieIcfgContainer [2024-11-28 03:37:38,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:37:38,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:37:38,744 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:37:38,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:37:38,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:37:38" (1/3) ... [2024-11-28 03:37:38,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42913ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:38, skipping insertion in model container [2024-11-28 03:37:38,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38" (2/3) ... [2024-11-28 03:37:38,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42913ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:38, skipping insertion in model container [2024-11-28 03:37:38,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:38" (3/3) ... [2024-11-28 03:37:38,755 INFO L128 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2024-11-28 03:37:38,772 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:37:38,774 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG count_by_1_variant.i that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:37:38,835 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:37:38,848 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;@7cbbe079, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:37:38,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:37:38,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2024-11-28 03:37:38,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 03:37:38,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:38,861 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 03:37:38,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:38,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash 889601065, now seen corresponding path program 1 times [2024-11-28 03:37:38,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:38,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302285217] [2024-11-28 03:37:38,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:38,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:39,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:39,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:39,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302285217] [2024-11-28 03:37:39,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302285217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:37:39,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:37:39,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:37:39,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511096242] [2024-11-28 03:37:39,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:37:39,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:37:39,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:39,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:37:39,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:37:39,173 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-28 03:37:39,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:39,239 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2024-11-28 03:37:39,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:37:39,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2024-11-28 03:37:39,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:39,248 INFO L225 Difference]: With dead ends: 26 [2024-11-28 03:37:39,248 INFO L226 Difference]: Without dead ends: 12 [2024-11-28 03:37:39,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:37:39,253 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:39,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:37:39,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-28 03:37:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-11-28 03:37:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2024-11-28 03:37:39,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-28 03:37:39,283 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2024-11-28 03:37:39,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:39,283 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-11-28 03:37:39,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-28 03:37:39,284 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-28 03:37:39,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 03:37:39,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:39,284 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:39,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:37:39,285 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:39,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:39,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1700095568, now seen corresponding path program 1 times [2024-11-28 03:37:39,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:39,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934351603] [2024-11-28 03:37:39,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:39,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:39,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:39,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934351603] [2024-11-28 03:37:39,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934351603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:37:39,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790605261] [2024-11-28 03:37:39,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:39,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:39,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:39,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:39,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:37:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:39,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:37:39,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:39,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:39,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:39,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:37:39,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790605261] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:37:39,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:37:39,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-28 03:37:39,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941984364] [2024-11-28 03:37:39,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:39,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:37:39,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:39,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:37:39,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:37:39,702 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 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) [2024-11-28 03:37:39,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:39,800 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-11-28 03:37:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:37:39,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 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 10 [2024-11-28 03:37:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:39,801 INFO L225 Difference]: With dead ends: 17 [2024-11-28 03:37:39,801 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:37:39,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:37:39,802 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:39,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:37:39,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:37:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:37:39,805 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) [2024-11-28 03:37:39,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:37:39,806 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-11-28 03:37:39,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:39,806 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:37:39,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 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) [2024-11-28 03:37:39,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:37:39,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:37:39,809 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:37:39,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:37:40,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:40,013 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 03:37:40,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:37:40,028 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:37:40,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:37:40 BoogieIcfgContainer [2024-11-28 03:37:40,042 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:37:40,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:37:40,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:37:40,044 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:37:40,044 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:38" (3/4) ... [2024-11-28 03:37:40,047 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:37:40,057 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-28 03:37:40,057 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:37:40,057 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:37:40,058 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:37:40,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:37:40,124 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:37:40,124 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:37:40,124 INFO L158 Benchmark]: Toolchain (without parser) took 1888.73ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 80.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-11-28 03:37:40,125 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:37:40,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.21ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.1MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:37:40,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.61ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.2MB in the end (delta: 862.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:37:40,125 INFO L158 Benchmark]: Boogie Preprocessor took 23.14ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:37:40,126 INFO L158 Benchmark]: RCFGBuilder took 228.48ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 71.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:37:40,126 INFO L158 Benchmark]: TraceAbstraction took 1297.39ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 85.1MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:37:40,126 INFO L158 Benchmark]: Witness Printer took 80.53ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 80.4MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:37:40,128 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.21ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.1MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.61ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.2MB in the end (delta: 862.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.14ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 228.48ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 71.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1297.39ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 85.1MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.53ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 80.4MB in the end (delta: 4.7MB). 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: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 1 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/9 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: 26]: Loop Invariant Derived loop invariant: (i < 1000001) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:37:40,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084f29db-d2bb-4226-954a-ea23cf839c07/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