./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version cf1a7837
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_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/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_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/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_efc813b6-7f76-42f2-a535-ebbbb3814935/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 ae3e84dc03b4889139acdee8320d8e78d51ece1a59012a14a24eb6a15f243467
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-cf1a783
[2023-11-12 02:18:17,427 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-12 02:18:17,543 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-12 02:18:17,552 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-12 02:18:17,552 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-12 02:18:17,594 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-12 02:18:17,595 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-12 02:18:17,596 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-12 02:18:17,597 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-12 02:18:17,602 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-12 02:18:17,603 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-12 02:18:17,603 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-12 02:18:17,604 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-12 02:18:17,605 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-12 02:18:17,606 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-12 02:18:17,606 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-12 02:18:17,607 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-12 02:18:17,607 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-12 02:18:17,607 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-12 02:18:17,608 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-12 02:18:17,608 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-12 02:18:17,609 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-12 02:18:17,609 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-12 02:18:17,610 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-12 02:18:17,610 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-12 02:18:17,610 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-12 02:18:17,611 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-12 02:18:17,611 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-12 02:18:17,612 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-12 02:18:17,612 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-12 02:18:17,613 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-12 02:18:17,613 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-12 02:18:17,614 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-12 02:18:17,614 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-12 02:18:17,614 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-12 02:18:17,615 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-12 02:18:17,615 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-12 02:18:17,615 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-12 02:18:17,615 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-12 02:18:17,616 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_efc813b6-7f76-42f2-a535-ebbbb3814935/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_efc813b6-7f76-42f2-a535-ebbbb3814935/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 -> ae3e84dc03b4889139acdee8320d8e78d51ece1a59012a14a24eb6a15f243467
[2023-11-12 02:18:17,941 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-12 02:18:17,969 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-12 02:18:17,974 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-12 02:18:17,976 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-12 02:18:17,977 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-12 02:18:17,978 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c
[2023-11-12 02:18:21,129 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-12 02:18:21,373 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-12 02:18:21,374 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c
[2023-11-12 02:18:21,382 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/data/64b76c36b/e7ec838ccc4a41138f354cacf51cb6f0/FLAGf75a87d47
[2023-11-12 02:18:21,398 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/data/64b76c36b/e7ec838ccc4a41138f354cacf51cb6f0
[2023-11-12 02:18:21,400 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-12 02:18:21,402 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-12 02:18:21,404 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-12 02:18:21,404 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-12 02:18:21,410 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-12 02:18:21,411 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,412 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0ff6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21, skipping insertion in model container
[2023-11-12 02:18:21,413 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,436 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-12 02:18:21,622 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_efc813b6-7f76-42f2-a535-ebbbb3814935/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c[555,568]
[2023-11-12 02:18:21,648 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-12 02:18:21,666 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-12 02:18:21,681 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_efc813b6-7f76-42f2-a535-ebbbb3814935/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c[555,568]
[2023-11-12 02:18:21,701 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-12 02:18:21,716 INFO  L206         MainTranslator]: Completed translation
[2023-11-12 02:18:21,717 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21 WrapperNode
[2023-11-12 02:18:21,717 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-12 02:18:21,719 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-12 02:18:21,719 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-12 02:18:21,720 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-12 02:18:21,728 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,736 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,756 INFO  L138                Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39
[2023-11-12 02:18:21,757 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-12 02:18:21,758 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-12 02:18:21,758 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-12 02:18:21,758 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-12 02:18:21,768 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,768 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,773 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,773 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,776 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,780 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,781 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,782 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,783 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-12 02:18:21,784 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-12 02:18:21,785 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-12 02:18:21,785 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-12 02:18:21,786 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (1/1) ...
[2023-11-12 02:18:21,803 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-12 02:18:21,815 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:18:21,827 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-12 02:18:21,836 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-12 02:18:21,864 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-12 02:18:21,864 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-11-12 02:18:21,865 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-11-12 02:18:21,865 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-12 02:18:21,865 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-12 02:18:21,865 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-12 02:18:21,866 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-12 02:18:21,866 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-12 02:18:21,948 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-12 02:18:21,950 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-12 02:18:22,191 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-12 02:18:22,198 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-12 02:18:22,198 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-12 02:18:22,200 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:22 BoogieIcfgContainer
[2023-11-12 02:18:22,201 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-12 02:18:22,204 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-12 02:18:22,204 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-12 02:18:22,216 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-12 02:18:22,217 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:18:21" (1/3) ...
[2023-11-12 02:18:22,218 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175fa657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:22, skipping insertion in model container
[2023-11-12 02:18:22,218 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:21" (2/3) ...
[2023-11-12 02:18:22,218 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175fa657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:22, skipping insertion in model container
[2023-11-12 02:18:22,219 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:22" (3/3) ...
[2023-11-12 02:18:22,221 INFO  L112   eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound1.c
[2023-11-12 02:18:22,242 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-12 02:18:22,243 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-12 02:18:22,307 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-12 02:18:22,317 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;@4220f6ea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-12 02:18:22,318 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-12 02:18:22,323 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-11-12 02:18:22,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2023-11-12 02:18:22,332 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:18:22,333 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:18:22,333 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:18:22,339 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:18:22,339 INFO  L85        PathProgramCache]: Analyzing trace with hash -1975646755, now seen corresponding path program 1 times
[2023-11-12 02:18:22,350 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:18:22,350 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50580561]
[2023-11-12 02:18:22,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:18:22,351 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:18:22,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:18:22,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:18:22,522 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50580561]
[2023-11-12 02:18:22,522 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-11-12 02:18:22,523 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047710960]
[2023-11-12 02:18:22,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:18:22,523 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:18:22,524 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:18:22,527 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:18:22,548 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-12 02:18:22,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:18:22,633 INFO  L262         TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-12 02:18:22,639 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:18:22,669 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-12 02:18:22,670 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-12 02:18:22,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047710960] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:18:22,672 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:18:22,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-12 02:18:22,675 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764087390]
[2023-11-12 02:18:22,676 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:18:22,680 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-12 02:18:22,680 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:18:22,723 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-12 02:18:22,724 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-12 02:18:22,726 INFO  L87              Difference]: Start difference. First operand  has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:18:22,753 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:18:22,753 INFO  L93              Difference]: Finished difference Result 47 states and 62 transitions.
[2023-11-12 02:18:22,754 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-12 02:18:22,756 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19
[2023-11-12 02:18:22,756 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:18:22,763 INFO  L225             Difference]: With dead ends: 47
[2023-11-12 02:18:22,764 INFO  L226             Difference]: Without dead ends: 21
[2023-11-12 02:18:22,767 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 02:18:22,772 INFO  L413           NwaCegarLoop]: 27 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, 27 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 02:18:22,774 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:18:22,793 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2023-11-12 02:18:22,811 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2023-11-12 02:18:22,813 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-12 02:18:22,816 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2023-11-12 02:18:22,817 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 19
[2023-11-12 02:18:22,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:18:22,818 INFO  L495      AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2023-11-12 02:18:22,819 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:18:22,819 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2023-11-12 02:18:22,821 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2023-11-12 02:18:22,821 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:18:22,821 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:18:22,833 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-12 02:18:23,027 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-11-12 02:18:23,028 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:18:23,028 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:18:23,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 1719515233, now seen corresponding path program 1 times
[2023-11-12 02:18:23,029 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:18:23,029 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222747462]
[2023-11-12 02:18:23,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:18:23,030 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:18:23,049 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-12 02:18:23,064 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187238652]
[2023-11-12 02:18:23,064 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:18:23,065 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:18:23,065 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:18:23,068 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:18:23,075 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-12 02:18:23,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:18:23,134 INFO  L262         TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-11-12 02:18:23,138 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:18:23,332 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-12 02:18:23,332 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-12 02:18:23,430 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:18:23,430 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:18:23,430 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222747462]
[2023-11-12 02:18:23,431 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-12 02:18:23,431 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187238652]
[2023-11-12 02:18:23,431 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [187238652] provided 1 perfect and 1 imperfect interpolant sequences
[2023-11-12 02:18:23,431 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-12 02:18:23,432 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11
[2023-11-12 02:18:23,432 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915763884]
[2023-11-12 02:18:23,432 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:18:23,433 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-12 02:18:23,433 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:18:23,434 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-12 02:18:23,435 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2023-11-12 02:18:23,435 INFO  L87              Difference]: Start difference. First operand 21 states and 23 transitions. Second operand  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-12 02:18:23,488 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:18:23,489 INFO  L93              Difference]: Finished difference Result 27 states and 28 transitions.
[2023-11-12 02:18:23,489 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-12 02:18:23,489 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19
[2023-11-12 02:18:23,490 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:18:23,490 INFO  L225             Difference]: With dead ends: 27
[2023-11-12 02:18:23,491 INFO  L226             Difference]: Without dead ends: 23
[2023-11-12 02:18:23,491 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132
[2023-11-12 02:18:23,493 INFO  L413           NwaCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:18:23,494 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 65 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:18:23,495 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2023-11-12 02:18:23,500 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2023-11-12 02:18:23,501 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-12 02:18:23,502 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions.
[2023-11-12 02:18:23,502 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 19
[2023-11-12 02:18:23,503 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:18:23,504 INFO  L495      AbstractCegarLoop]: Abstraction has 23 states and 24 transitions.
[2023-11-12 02:18:23,504 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-12 02:18:23,504 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions.
[2023-11-12 02:18:23,505 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2023-11-12 02:18:23,505 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:18:23,506 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:18:23,517 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-12 02:18:23,711 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-11-12 02:18:23,711 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:18:23,712 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:18:23,712 INFO  L85        PathProgramCache]: Analyzing trace with hash 1670281901, now seen corresponding path program 1 times
[2023-11-12 02:18:23,712 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:18:23,712 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414614055]
[2023-11-12 02:18:23,713 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:18:23,713 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:18:23,741 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-12 02:18:23,741 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050945045]
[2023-11-12 02:18:23,741 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:18:23,741 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:18:23,742 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:18:23,750 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:18:23,758 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-12 02:18:23,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-12 02:18:23,827 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-12 02:18:23,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-12 02:18:23,867 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-12 02:18:23,867 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-12 02:18:23,869 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-12 02:18:23,882 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-12 02:18:24,076 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:18:24,079 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-12 02:18:24,083 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-11-12 02:18:24,102 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:18:24 BoogieIcfgContainer
[2023-11-12 02:18:24,102 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-12 02:18:24,102 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-12 02:18:24,103 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-11-12 02:18:24,103 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-11-12 02:18:24,103 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:22" (3/4) ...
[2023-11-12 02:18:24,104 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2023-11-12 02:18:24,143 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml
[2023-11-12 02:18:24,143 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-12 02:18:24,144 INFO  L158              Benchmark]: Toolchain (without parser) took 2741.51ms. Allocated memory is still 199.2MB. Free memory was 156.3MB in the beginning and 139.6MB in the end (delta: 16.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB.
[2023-11-12 02:18:24,144 INFO  L158              Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-12 02:18:24,145 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 313.99ms. Allocated memory is still 199.2MB. Free memory was 155.9MB in the beginning and 145.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-12 02:18:24,145 INFO  L158              Benchmark]: Boogie Procedure Inliner took 38.34ms. Allocated memory is still 199.2MB. Free memory was 145.1MB in the beginning and 143.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-12 02:18:24,146 INFO  L158              Benchmark]: Boogie Preprocessor took 25.91ms. Allocated memory is still 199.2MB. Free memory was 143.7MB in the beginning and 142.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-12 02:18:24,147 INFO  L158              Benchmark]: RCFGBuilder took 416.58ms. Allocated memory is still 199.2MB. Free memory was 142.5MB in the beginning and 132.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-12 02:18:24,147 INFO  L158              Benchmark]: TraceAbstraction took 1898.27ms. Allocated memory is still 199.2MB. Free memory was 131.3MB in the beginning and 141.7MB in the end (delta: -10.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-12 02:18:24,148 INFO  L158              Benchmark]: Witness Printer took 40.64ms. Allocated memory is still 199.2MB. Free memory was 141.7MB in the beginning and 139.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-12 02:18:24,151 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 313.99ms. Allocated memory is still 199.2MB. Free memory was 155.9MB in the beginning and 145.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 38.34ms. Allocated memory is still 199.2MB. Free memory was 145.1MB in the beginning and 143.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 25.91ms. Allocated memory is still 199.2MB. Free memory was 143.7MB in the beginning and 142.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 416.58ms. Allocated memory is still 199.2MB. Free memory was 142.5MB in the beginning and 132.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 1898.27ms. Allocated memory is still 199.2MB. Free memory was 131.3MB in the beginning and 141.7MB in the end (delta: -10.4MB). There was no memory consumed. Max. memory is 16.1GB.
 * Witness Printer took 40.64ms. Allocated memory is still 199.2MB. Free memory was 141.7MB in the beginning and 139.6MB 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.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: 
[L23]              unsigned int z, k;
[L24]              long long x, y, c;
[L25]              z = __VERIFIER_nondet_uint()
[L26]  CALL        assume_abort_if_not(z>=0 && z<=1)
       VAL         [\old(cond)=1]
[L13]  COND FALSE  !(!cond)
       VAL         [\old(cond)=1, cond=1]
[L26]  RET         assume_abort_if_not(z>=0 && z<=1)
       VAL         [z=4294967296]
[L27]              k = __VERIFIER_nondet_uint()
[L28]  CALL        assume_abort_if_not(k>=0 && k<=1)
       VAL         [\old(cond)=1]
[L13]  COND FALSE  !(!cond)
       VAL         [\old(cond)=1, cond=1]
[L28]  RET         assume_abort_if_not(k>=0 && k<=1)
       VAL         [k=0, z=4294967296]
[L30]              x = 1
[L31]              y = z
[L32]              c = 1
       VAL         [c=1, k=0, x=1, y=0, z=4294967296]
[L34]  COND TRUE   1
       VAL         [c=1, k=0, x=1, y=0, z=4294967296]
[L35]  CALL        __VERIFIER_assert(x*z - x - y + 1 == 0)
       VAL         [\old(cond)=1]
[L16]  COND FALSE  !(!(cond))
       VAL         [\old(cond)=1, cond=1]
[L35]  RET         __VERIFIER_assert(x*z - x - y + 1 == 0)
       VAL         [c=1, k=0, x=1, y=0, z=4294967296]
[L37]  COND TRUE   !(c < k)
       VAL         [c=1, k=0, x=1, y=0, z=4294967296]
[L46]              x = x * (z - 1)
       VAL         [c=1, k=0, x=4294967295, y=0, z=4294967296]
[L48]  CALL        __VERIFIER_assert(1 + x - y == 0)
       VAL         [\old(cond)=0]
[L16]  COND TRUE   !(cond)
       VAL         [\old(cond)=0, cond=0]
[L18]              reach_error()
       VAL         [\old(cond)=0, cond=0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, 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, 92 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 45 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 2 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 9/12 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 02:18:24,183 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efc813b6-7f76-42f2-a535-ebbbb3814935/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