./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version cf1a7837
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl --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 fee025173b123742b5b08bb8895dc7c9911cdbb928d94cbe9fdb074ddb7a3572
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-cf1a783
[2023-11-12 02:16:37,854 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-12 02:16:37,924 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-12 02:16:37,928 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-12 02:16:37,929 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-12 02:16:37,955 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-12 02:16:37,955 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-12 02:16:37,956 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-12 02:16:37,957 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-12 02:16:37,957 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-12 02:16:37,958 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-12 02:16:37,959 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-12 02:16:37,959 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-12 02:16:37,960 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-12 02:16:37,961 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-12 02:16:37,961 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-12 02:16:37,962 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-12 02:16:37,962 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-12 02:16:37,963 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-12 02:16:37,964 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-12 02:16:37,964 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-12 02:16:37,965 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-12 02:16:37,966 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-12 02:16:37,966 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-12 02:16:37,967 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-12 02:16:37,967 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-12 02:16:37,968 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-12 02:16:37,968 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-12 02:16:37,969 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-12 02:16:37,969 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-12 02:16:37,970 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-12 02:16:37,970 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-12 02:16:37,971 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-12 02:16:37,971 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-12 02:16:37,972 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-12 02:16:37,972 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-12 02:16:37,973 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-12 02:16:37,973 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-12 02:16:37,973 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-12 02:16:37,974 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_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/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_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl
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 -> fee025173b123742b5b08bb8895dc7c9911cdbb928d94cbe9fdb074ddb7a3572
[2023-11-12 02:16:38,239 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-12 02:16:38,271 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-12 02:16:38,273 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-12 02:16:38,276 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-12 02:16:38,276 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-12 02:16:38,278 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c
[2023-11-12 02:16:41,415 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-12 02:16:41,606 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-12 02:16:41,607 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c
[2023-11-12 02:16:41,615 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/data/96d30f825/86ffaadb81304f32a58e592dadc8993e/FLAGb6cbbe495
[2023-11-12 02:16:41,630 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/data/96d30f825/86ffaadb81304f32a58e592dadc8993e
[2023-11-12 02:16:41,633 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-12 02:16:41,634 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-12 02:16:41,636 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-12 02:16:41,636 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-12 02:16:41,641 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-12 02:16:41,642 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,643 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b41ccbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41, skipping insertion in model container
[2023-11-12 02:16:41,644 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,664 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-12 02:16:41,816 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_012d9b22-4d09-45e7-bc0d-c560d76354c3/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c[555,568]
[2023-11-12 02:16:41,832 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-12 02:16:41,843 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-12 02:16:41,856 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_012d9b22-4d09-45e7-bc0d-c560d76354c3/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c[555,568]
[2023-11-12 02:16:41,861 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-12 02:16:41,876 INFO  L206         MainTranslator]: Completed translation
[2023-11-12 02:16:41,877 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41 WrapperNode
[2023-11-12 02:16:41,877 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-12 02:16:41,879 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-12 02:16:41,879 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-12 02:16:41,879 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-12 02:16:41,886 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,893 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,912 INFO  L138                Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42
[2023-11-12 02:16:41,912 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-12 02:16:41,913 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-12 02:16:41,913 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-12 02:16:41,913 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-12 02:16:41,922 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,923 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,924 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,925 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,928 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,931 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,932 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,933 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,935 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-12 02:16:41,936 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-12 02:16:41,936 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-12 02:16:41,936 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-12 02:16:41,937 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (1/1) ...
[2023-11-12 02:16:41,949 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-12 02:16:41,962 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:16:41,985 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-12 02:16:42,013 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-12 02:16:42,035 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-12 02:16:42,035 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-12 02:16:42,036 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-12 02:16:42,036 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-12 02:16:42,036 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-12 02:16:42,036 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-12 02:16:42,117 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-12 02:16:42,119 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-12 02:16:42,314 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-12 02:16:42,320 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-12 02:16:42,324 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-12 02:16:42,326 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:42 BoogieIcfgContainer
[2023-11-12 02:16:42,327 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-12 02:16:42,329 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-12 02:16:42,343 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-12 02:16:42,346 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-12 02:16:42,347 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:16:41" (1/3) ...
[2023-11-12 02:16:42,348 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3009c093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:16:42, skipping insertion in model container
[2023-11-12 02:16:42,348 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:41" (2/3) ...
[2023-11-12 02:16:42,348 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3009c093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:16:42, skipping insertion in model container
[2023-11-12 02:16:42,349 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:42" (3/3) ...
[2023-11-12 02:16:42,350 INFO  L112   eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound100.c
[2023-11-12 02:16:42,371 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-12 02:16:42,372 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-12 02:16:42,456 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-12 02:16:42,467 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;@1570ae1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-12 02:16:42,469 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-12 02:16:42,473 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:16:42,482 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-12 02:16:42,482 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:16:42,484 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:16:42,485 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:16:42,492 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:16:42,493 INFO  L85        PathProgramCache]: Analyzing trace with hash 561702714, now seen corresponding path program 1 times
[2023-11-12 02:16:42,514 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:16:42,515 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707418888]
[2023-11-12 02:16:42,515 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:16:42,516 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:16:42,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:16:42,690 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:16:42,690 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707418888]
[2023-11-12 02:16:42,691 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-11-12 02:16:42,691 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66867791]
[2023-11-12 02:16:42,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:16:42,694 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:16:42,695 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:16:42,700 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:16:42,736 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-12 02:16:42,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:16:42,780 INFO  L262         TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-12 02:16:42,784 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:16:42,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:16:42,807 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-12 02:16:42,808 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [66867791] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:16:42,808 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:16:42,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-12 02:16:42,811 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094328594]
[2023-11-12 02:16:42,812 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:16:42,816 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-12 02:16:42,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:16:42,846 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-12 02:16:42,847 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-12 02:16:42,849 INFO  L87              Difference]: Start difference. First operand  has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-12 02:16:42,868 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:16:42,869 INFO  L93              Difference]: Finished difference Result 34 states and 44 transitions.
[2023-11-12 02:16:42,872 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-12 02:16:42,874 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2023-11-12 02:16:42,874 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:16:42,881 INFO  L225             Difference]: With dead ends: 34
[2023-11-12 02:16:42,882 INFO  L226             Difference]: Without dead ends: 14
[2023-11-12 02:16:42,885 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-12 02:16:42,890 INFO  L413           NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:16:42,892 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:16:42,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2023-11-12 02:16:42,931 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2023-11-12 02:16:42,933 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-12 02:16:42,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions.
[2023-11-12 02:16:42,935 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8
[2023-11-12 02:16:42,935 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:16:42,935 INFO  L495      AbstractCegarLoop]: Abstraction has 14 states and 16 transitions.
[2023-11-12 02:16:42,936 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-12 02:16:42,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2023-11-12 02:16:42,936 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-12 02:16:42,937 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:16:42,937 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:16:42,949 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-12 02:16:43,143 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-11-12 02:16:43,143 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:16:43,144 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:16:43,144 INFO  L85        PathProgramCache]: Analyzing trace with hash 180228959, now seen corresponding path program 1 times
[2023-11-12 02:16:43,144 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:16:43,145 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486795323]
[2023-11-12 02:16:43,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:16:43,145 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:16:43,164 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-12 02:16:43,164 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212226198]
[2023-11-12 02:16:43,165 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:16:43,166 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:16:43,166 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:16:43,167 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:16:43,193 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-12 02:16:43,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:16:43,242 INFO  L262         TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-11-12 02:16:43,245 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:16:43,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:16:43,391 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-12 02:16:43,391 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:16:43,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486795323]
[2023-11-12 02:16:43,392 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-12 02:16:43,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212226198]
[2023-11-12 02:16:43,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212226198] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:16:43,393 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:16:43,393 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-12 02:16:43,393 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246156182]
[2023-11-12 02:16:43,393 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:16:43,396 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-12 02:16:43,396 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:16:43,398 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-12 02:16:43,399 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:16:43,399 INFO  L87              Difference]: Start difference. First operand 14 states and 16 transitions. Second operand  has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-12 02:16:43,458 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:16:43,458 INFO  L93              Difference]: Finished difference Result 25 states and 29 transitions.
[2023-11-12 02:16:43,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-12 02:16:43,459 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2023-11-12 02:16:43,459 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:16:43,460 INFO  L225             Difference]: With dead ends: 25
[2023-11-12 02:16:43,460 INFO  L226             Difference]: Without dead ends: 23
[2023-11-12 02:16:43,461 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-12 02:16:43,463 INFO  L413           NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:16:43,463 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 42 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:16:43,465 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2023-11-12 02:16:43,473 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21.
[2023-11-12 02:16:43,474 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:16:43,477 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions.
[2023-11-12 02:16:43,478 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 8
[2023-11-12 02:16:43,478 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:16:43,478 INFO  L495      AbstractCegarLoop]: Abstraction has 21 states and 24 transitions.
[2023-11-12 02:16:43,479 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-12 02:16:43,480 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions.
[2023-11-12 02:16:43,480 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-12 02:16:43,480 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:16:43,481 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:16:43,491 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-12 02:16:43,686 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:16:43,687 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:16:43,687 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:16:43,687 INFO  L85        PathProgramCache]: Analyzing trace with hash 1219556645, now seen corresponding path program 1 times
[2023-11-12 02:16:43,687 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:16:43,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532936149]
[2023-11-12 02:16:43,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:16:43,689 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:16:43,701 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-12 02:16:43,701 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180336310]
[2023-11-12 02:16:43,701 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:16:43,702 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:16:43,702 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:16:43,703 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:16:43,732 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-12 02:16:43,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:16:43,762 INFO  L262         TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-12 02:16:43,764 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:16:43,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:16:43,790 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-12 02:16:43,790 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:16:43,790 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532936149]
[2023-11-12 02:16:43,791 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-12 02:16:43,791 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180336310]
[2023-11-12 02:16:43,791 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [180336310] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:16:43,791 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:16:43,791 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-12 02:16:43,792 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361219288]
[2023-11-12 02:16:43,792 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:16:43,792 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-12 02:16:43,793 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:16:43,793 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-12 02:16:43,794 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-12 02:16:43,794 INFO  L87              Difference]: Start difference. First operand 21 states and 24 transitions. Second operand  has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-12 02:16:43,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:16:43,810 INFO  L93              Difference]: Finished difference Result 29 states and 31 transitions.
[2023-11-12 02:16:43,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-12 02:16:43,810 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2023-11-12 02:16:43,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:16:43,812 INFO  L225             Difference]: With dead ends: 29
[2023-11-12 02:16:43,813 INFO  L226             Difference]: Without dead ends: 21
[2023-11-12 02:16:43,813 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-12 02:16:43,815 INFO  L413           NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:16:43,816 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:16:43,817 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2023-11-12 02:16:43,821 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2023-11-12 02:16:43,822 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:16:43,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2023-11-12 02:16:43,823 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9
[2023-11-12 02:16:43,823 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:16:43,824 INFO  L495      AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2023-11-12 02:16:43,824 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-12 02:16:43,824 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2023-11-12 02:16:43,825 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-11-12 02:16:43,825 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:16:43,825 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:16:43,834 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-11-12 02:16:44,031 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:16:44,031 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:16:44,032 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:16:44,032 INFO  L85        PathProgramCache]: Analyzing trace with hash -1817042812, now seen corresponding path program 1 times
[2023-11-12 02:16:44,032 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:16:44,032 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651628426]
[2023-11-12 02:16:44,033 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:16:44,033 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:16:44,048 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-12 02:16:44,049 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931304954]
[2023-11-12 02:16:44,049 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:16:44,049 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:16:44,050 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:16:44,051 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:16:44,081 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-12 02:16:44,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-12 02:16:44,119 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-12 02:16:44,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-12 02:16:44,157 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-12 02:16:44,158 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-12 02:16:44,159 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-12 02:16:44,181 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-12 02:16:44,366 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:16:44,369 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-11-12 02:16:44,373 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-11-12 02:16:44,386 WARN  L1567  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated
[2023-11-12 02:16:44,396 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:16:44 BoogieIcfgContainer
[2023-11-12 02:16:44,396 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-12 02:16:44,397 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-12 02:16:44,397 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-11-12 02:16:44,397 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-11-12 02:16:44,398 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:42" (3/4) ...
[2023-11-12 02:16:44,399 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2023-11-12 02:16:44,402 WARN  L1567  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated
[2023-11-12 02:16:44,439 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml
[2023-11-12 02:16:44,439 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-12 02:16:44,440 INFO  L158              Benchmark]: Toolchain (without parser) took 2805.94ms. Allocated memory was 138.4MB in the beginning and 213.9MB in the end (delta: 75.5MB). Free memory was 93.5MB in the beginning and 137.9MB in the end (delta: -44.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB.
[2023-11-12 02:16:44,441 INFO  L158              Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-12 02:16:44,441 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 242.08ms. Allocated memory is still 138.4MB. Free memory was 93.5MB in the beginning and 82.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-12 02:16:44,442 INFO  L158              Benchmark]: Boogie Procedure Inliner took 33.92ms. Allocated memory is still 138.4MB. Free memory was 82.9MB in the beginning and 81.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-12 02:16:44,442 INFO  L158              Benchmark]: Boogie Preprocessor took 22.09ms. Allocated memory is still 138.4MB. Free memory was 81.4MB in the beginning and 80.5MB in the end (delta: 907.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-12 02:16:44,443 INFO  L158              Benchmark]: RCFGBuilder took 390.96ms. Allocated memory is still 138.4MB. Free memory was 80.2MB in the beginning and 70.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-12 02:16:44,443 INFO  L158              Benchmark]: TraceAbstraction took 2067.10ms. Allocated memory was 138.4MB in the beginning and 213.9MB in the end (delta: 75.5MB). Free memory was 69.2MB in the beginning and 140.0MB in the end (delta: -70.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB.
[2023-11-12 02:16:44,444 INFO  L158              Benchmark]: Witness Printer took 42.72ms. Allocated memory is still 213.9MB. Free memory was 140.0MB in the beginning and 137.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-12 02:16:44,447 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 242.08ms. Allocated memory is still 138.4MB. Free memory was 93.5MB in the beginning and 82.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 33.92ms. Allocated memory is still 138.4MB. Free memory was 82.9MB in the beginning and 81.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 22.09ms. Allocated memory is still 138.4MB. Free memory was 81.4MB in the beginning and 80.5MB in the end (delta: 907.6kB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 390.96ms. Allocated memory is still 138.4MB. Free memory was 80.2MB in the beginning and 70.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 2067.10ms. Allocated memory was 138.4MB in the beginning and 213.9MB in the end (delta: 75.5MB). Free memory was 69.2MB in the beginning and 140.0MB in the end (delta: -70.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB.
 * Witness Printer took 42.72ms. Allocated memory is still 213.9MB. Free memory was 140.0MB in the beginning and 137.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated
  - GenericResult: Unfinished Backtranslation
    The program execution was not completely translated back.
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated
  - GenericResult: Unfinished Backtranslation
    The program execution was not completely translated back.
 * 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
  - CounterExampleResult [Line: 18]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L22]              int counter = 0;
       VAL         [counter=0]
[L24]              unsigned int z, k;
[L25]              long long x, y, c;
[L26]              z = __VERIFIER_nondet_uint()
[L27]              k = __VERIFIER_nondet_uint()
[L29]              x = 1
[L30]              y = z
[L31]              c = 1
       VAL         [c=1, counter=0, x=1, y=0, z=0]
[L33]  EXPR        counter++
       VAL         [c=1, counter=1, x=1, y=0, z=0]
[L33]  COND TRUE   counter++<100
[L34]  CALL        __VERIFIER_assert(x*z - x - y + 1 == 0)
       VAL         [\old(cond)=1, counter=1]
[L16]  COND FALSE  !(!(cond))
       VAL         [\old(cond)=1, cond=1, counter=1]
[L34]  RET         __VERIFIER_assert(x*z - x - y + 1 == 0)
       VAL         [c=1, counter=1, x=1, y=0, z=0]
[L36]  COND TRUE   !(c < k)
       VAL         [c=1, counter=1, k=0, x=1, y=0, z=0]
[L45]              x = x * (z - 1)
       VAL         [c=1, counter=1, k=0, x=4294967295, y=0, z=0]
[L47]  CALL        __VERIFIER_assert(1 + x - y == 0)
       VAL         [\old(cond)=0, counter=1]
[L16]  COND TRUE   !(cond)
       VAL         [\old(cond)=0, cond=0, counter=1]
[L18]              reach_error()
       VAL         [\old(cond)=0, cond=0, counter=1]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 45 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 1 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2023-11-12 02:16:44,484 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_012d9b22-4d09-45e7-bc0d-c560d76354c3/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE