./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme --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 ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 12:01:58,300 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-26 12:01:58,378 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-26 12:01:58,384 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 12:01:58,385 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 12:01:58,410 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 12:01:58,411 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 12:01:58,411 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 12:01:58,412 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 12:01:58,413 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-26 12:01:58,413 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 12:01:58,414 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 12:01:58,415 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 12:01:58,416 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-26 12:01:58,416 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-26 12:01:58,417 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 12:01:58,418 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-26 12:01:58,418 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-26 12:01:58,419 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-26 12:01:58,420 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-26 12:01:58,420 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-26 12:01:58,421 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-26 12:01:58,422 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 12:01:58,422 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-26 12:01:58,423 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-26 12:01:58,423 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-26 12:01:58,424 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-26 12:01:58,424 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 12:01:58,425 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-26 12:01:58,426 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 12:01:58,426 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-26 12:01:58,427 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 12:01:58,427 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 12:01:58,428 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 12:01:58,428 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-26 12:01:58,428 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-26 12:01:58,428 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-26 12:01:58,429 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 12:01:58,429 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 12:01:58,429 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-26 12:01:58,429 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 12:01:58,430 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 12:01:58,430 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme
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 -> ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a
[2023-11-26 12:01:58,754 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 12:01:58,789 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 12:01:58,792 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 12:01:58,793 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-26 12:01:58,794 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-26 12:01:58,795 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c
[2023-11-26 12:02:01,967 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-26 12:02:02,178 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-26 12:02:02,178 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c
[2023-11-26 12:02:02,186 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/data/4deb2e30b/4ebb1b433b0b44b4a3aa31215a58f406/FLAG093218f16
[2023-11-26 12:02:02,530 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/data/4deb2e30b/4ebb1b433b0b44b4a3aa31215a58f406
[2023-11-26 12:02:02,539 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 12:02:02,541 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 12:02:02,542 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 12:02:02,543 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 12:02:02,548 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 12:02:02,549 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,551 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7f327b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02, skipping insertion in model container
[2023-11-26 12:02:02,551 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,575 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-26 12:02:02,764 WARN  L240   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_15fe8e3c-35ff-46aa-941e-649a48f28b5b/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002]
[2023-11-26 12:02:02,769 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 12:02:02,779 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-26 12:02:02,795 WARN  L240   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_15fe8e3c-35ff-46aa-941e-649a48f28b5b/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002]
[2023-11-26 12:02:02,796 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 12:02:02,811 INFO  L206         MainTranslator]: Completed translation
[2023-11-26 12:02:02,812 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02 WrapperNode
[2023-11-26 12:02:02,812 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 12:02:02,813 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-26 12:02:02,813 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-26 12:02:02,814 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-26 12:02:02,822 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,829 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,847 INFO  L138                Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43
[2023-11-26 12:02:02,847 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-26 12:02:02,848 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-26 12:02:02,848 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-26 12:02:02,848 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-26 12:02:02,860 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,860 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,861 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,872 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].
[2023-11-26 12:02:02,872 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,873 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,878 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,880 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,881 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,882 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,884 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-26 12:02:02,885 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-26 12:02:02,885 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-26 12:02:02,885 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-26 12:02:02,886 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (1/1) ...
[2023-11-26 12:02:02,898 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 12:02:02,911 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 12:02:02,928 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-26 12:02:02,953 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-26 12:02:02,969 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-26 12:02:02,969 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-26 12:02:02,970 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-26 12:02:02,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-26 12:02:03,051 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-26 12:02:03,053 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-26 12:02:03,259 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-26 12:02:03,291 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-26 12:02:03,291 INFO  L309             CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-26 12:02:03,291 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:03 BoogieIcfgContainer
[2023-11-26 12:02:03,292 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-26 12:02:03,294 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-26 12:02:03,295 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-26 12:02:03,302 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-26 12:02:03,302 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:02" (1/3) ...
[2023-11-26 12:02:03,304 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd3620c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:03, skipping insertion in model container
[2023-11-26 12:02:03,304 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:02" (2/3) ...
[2023-11-26 12:02:03,306 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd3620c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:03, skipping insertion in model container
[2023-11-26 12:02:03,307 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:03" (3/3) ...
[2023-11-26 12:02:03,308 INFO  L112   eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c
[2023-11-26 12:02:03,330 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-26 12:02:03,330 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-26 12:02:03,396 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 12:02:03,405 INFO  L357      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, mHoare=true, 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;@7e351ede, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 12:02:03,405 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-26 12:02:03,411 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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)
[2023-11-26 12:02:03,418 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2023-11-26 12:02:03,418 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:02:03,419 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-26 12:02:03,422 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 12:02:03,426 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:02:03,427 INFO  L85        PathProgramCache]: Analyzing trace with hash 1724589170, now seen corresponding path program 1 times
[2023-11-26 12:02:03,434 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:02:03,435 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915842402]
[2023-11-26 12:02:03,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:02:03,436 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:02:03,524 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:02:03,604 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:02:03,605 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:02:03,605 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915842402]
[2023-11-26 12:02:03,606 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915842402] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:02:03,606 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:02:03,606 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 12:02:03,608 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164545894]
[2023-11-26 12:02:03,609 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:02:03,613 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 12:02:03,614 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:02:03,644 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 12:02:03,645 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 12:02:03,647 INFO  L87              Difference]: Start difference. First operand  has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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) Second operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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)
[2023-11-26 12:02:03,683 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:02:03,684 INFO  L93              Difference]: Finished difference Result 16 states and 20 transitions.
[2023-11-26 12:02:03,685 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 12:02:03,686 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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
[2023-11-26 12:02:03,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:02:03,694 INFO  L225             Difference]: With dead ends: 16
[2023-11-26 12:02:03,694 INFO  L226             Difference]: Without dead ends: 8
[2023-11-26 12:02:03,715 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 12:02:03,721 INFO  L413           NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 12:02:03,722 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 12:02:03,738 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8 states.
[2023-11-26 12:02:03,759 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8.
[2023-11-26 12:02:03,760 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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)
[2023-11-26 12:02:03,761 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2023-11-26 12:02:03,762 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6
[2023-11-26 12:02:03,763 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:02:03,763 INFO  L495      AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2023-11-26 12:02:03,763 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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)
[2023-11-26 12:02:03,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2023-11-26 12:02:03,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-26 12:02:03,764 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:02:03,764 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-26 12:02:03,764 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-26 12:02:03,765 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 12:02:03,765 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:02:03,766 INFO  L85        PathProgramCache]: Analyzing trace with hash 1922594244, now seen corresponding path program 1 times
[2023-11-26 12:02:03,766 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:02:03,766 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331173128]
[2023-11-26 12:02:03,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:02:03,767 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:02:03,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:02:04,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:02:04,002 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:02:04,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331173128]
[2023-11-26 12:02:04,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331173128] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 12:02:04,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600349178]
[2023-11-26 12:02:04,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:02:04,003 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 12:02:04,003 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 12:02:04,007 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 12:02:04,027 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-26 12:02:04,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:02:04,093 INFO  L262         TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-11-26 12:02:04,108 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 12:02:04,206 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:02:04,206 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 12:02:04,270 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:02:04,270 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600349178] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 12:02:04,271 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 12:02:04,271 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2023-11-26 12:02:04,272 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454862625]
[2023-11-26 12:02:04,272 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 12:02:04,273 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-26 12:02:04,281 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:02:04,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-26 12:02:04,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-11-26 12:02:04,283 INFO  L87              Difference]: Start difference. First operand 8 states and 8 transitions. Second operand  has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 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)
[2023-11-26 12:02:04,336 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:02:04,337 INFO  L93              Difference]: Finished difference Result 10 states and 11 transitions.
[2023-11-26 12:02:04,337 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-26 12:02:04,337 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 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) Word has length 7
[2023-11-26 12:02:04,338 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:02:04,338 INFO  L225             Difference]: With dead ends: 10
[2023-11-26 12:02:04,338 INFO  L226             Difference]: Without dead ends: 0
[2023-11-26 12:02:04,339 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2023-11-26 12:02:04,341 INFO  L413           NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 12:02:04,342 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 12:02:04,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-11-26 12:02:04,343 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-11-26 12:02:04,344 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)
[2023-11-26 12:02:04,344 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-26 12:02:04,344 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7
[2023-11-26 12:02:04,344 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:02:04,345 INFO  L495      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-26 12:02:04,345 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 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)
[2023-11-26 12:02:04,345 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-11-26 12:02:04,345 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2023-11-26 12:02:04,348 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-26 12:02:04,365 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-26 12:02:04,556 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-11-26 12:02:04,558 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-11-26 12:02:04,561 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-11-26 12:02:04,561 INFO  L899   garLoopResultBuilder]: For program point L25(lines 25 58) no Hoare annotation was computed.
[2023-11-26 12:02:04,561 INFO  L899   garLoopResultBuilder]: For program point L19(lines 19 59) no Hoare annotation was computed.
[2023-11-26 12:02:04,562 INFO  L899   garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed.
[2023-11-26 12:02:04,562 INFO  L899   garLoopResultBuilder]: For program point L46(lines 46 55) no Hoare annotation was computed.
[2023-11-26 12:02:04,562 INFO  L899   garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-11-26 12:02:04,562 INFO  L899   garLoopResultBuilder]: For program point main_returnLabel#1(lines 13 60) no Hoare annotation was computed.
[2023-11-26 12:02:04,562 INFO  L899   garLoopResultBuilder]: For program point $Ultimate##6(lines 32 57) no Hoare annotation was computed.
[2023-11-26 12:02:04,563 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed.
[2023-11-26 12:02:04,567 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-26 12:02:04,571 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-11-26 12:02:04,580 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:02:04 BoogieIcfgContainer
[2023-11-26 12:02:04,581 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-26 12:02:04,582 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-26 12:02:04,582 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-11-26 12:02:04,583 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-11-26 12:02:04,584 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:03" (3/4) ...
[2023-11-26 12:02:04,591 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2023-11-26 12:02:04,605 INFO  L943   BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2023-11-26 12:02:04,606 INFO  L943   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-26 12:02:04,606 INFO  L943   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-26 12:02:04,607 INFO  L943   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-26 12:02:04,712 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/witness.graphml
[2023-11-26 12:02:04,712 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/witness.yml
[2023-11-26 12:02:04,713 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-26 12:02:04,714 INFO  L158              Benchmark]: Toolchain (without parser) took 2172.88ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 96.8MB in the beginning and 131.5MB in the end (delta: -34.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB.
[2023-11-26 12:02:04,714 INFO  L158              Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-26 12:02:04,715 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 270.07ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 86.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-26 12:02:04,715 INFO  L158              Benchmark]: Boogie Procedure Inliner took 34.01ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 84.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-26 12:02:04,716 INFO  L158              Benchmark]: Boogie Preprocessor took 36.00ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 83.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-26 12:02:04,716 INFO  L158              Benchmark]: RCFGBuilder took 407.08ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 73.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-26 12:02:04,717 INFO  L158              Benchmark]: TraceAbstraction took 1286.65ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 72.6MB in the beginning and 135.7MB in the end (delta: -63.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-26 12:02:04,717 INFO  L158              Benchmark]: Witness Printer took 131.01ms. Allocated memory is still 188.7MB. Free memory was 135.7MB in the beginning and 131.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-26 12:02:04,719 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 270.07ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 86.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 34.01ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 84.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 36.00ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 83.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 407.08ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 73.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 1286.65ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 72.6MB in the beginning and 135.7MB in the end (delta: -63.1MB). There was no memory consumed. Max. memory is 16.1GB.
 * Witness Printer took 131.01ms. Allocated memory is still 188.7MB. Free memory was 135.7MB in the beginning and 131.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 48]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 10, 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 4 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-11-26 12:02:04,750 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15fe8e3c-35ff-46aa-941e-649a48f28b5b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE