./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array3_pattern.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
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_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array3_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX --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 8c9f77a5f5cfb41429e6b2e557580f5f8a855ca718c241fb5a07541ef3b21ab2
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:45:33,729 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:45:33,858 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 17:45:33,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:45:33,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:45:33,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:45:33,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:45:33,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:45:33,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:45:33,905 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:45:33,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:45:33,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:45:33,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:45:33,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:45:33,911 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:45:33,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:45:33,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:45:33,912 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:45:33,912 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:45:33,913 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:45:33,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:45:33,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:45:33,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:45:33,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:45:33,919 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:45:33,919 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:45:33,919 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:45:33,920 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:45:33,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:45:33,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:45:33,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:45:33,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:45:33,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:45:33,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:45:33,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:45:33,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:45:33,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:45:33,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:45:33,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:45:33,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:45:33,928 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:45:33,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:45:33,930 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_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9f77a5f5cfb41429e6b2e557580f5f8a855ca718c241fb5a07541ef3b21ab2
[2024-11-08 17:45:34,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:45:34,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:45:34,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:45:34,321 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:45:34,322 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:45:34,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/array-patterns/array3_pattern.c
Unable to find full path for "g++"
[2024-11-08 17:45:36,663 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:45:36,904 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:45:36,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/sv-benchmarks/c/array-patterns/array3_pattern.c
[2024-11-08 17:45:36,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/data/2cf14d71e/13426efe74fc4e229b53b1c141bcaa4a/FLAGbb18d2803
[2024-11-08 17:45:36,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/data/2cf14d71e/13426efe74fc4e229b53b1c141bcaa4a
[2024-11-08 17:45:36,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:45:36,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:45:36,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:45:36,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:45:36,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:45:36,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:36" (1/1) ...
[2024-11-08 17:45:36,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7c5348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:36, skipping insertion in model container
[2024-11-08 17:45:36,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:36" (1/1) ...
[2024-11-08 17:45:36,990 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:45:37,285 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/sv-benchmarks/c/array-patterns/array3_pattern.c[1393,1406]
[2024-11-08 17:45:37,320 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:45:37,333 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:45:37,351 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/sv-benchmarks/c/array-patterns/array3_pattern.c[1393,1406]
[2024-11-08 17:45:37,376 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:45:37,414 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:45:37,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37 WrapperNode
[2024-11-08 17:45:37,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:45:37,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:45:37,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:45:37,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:45:37,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,469 INFO L138 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87
[2024-11-08 17:45:37,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:45:37,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:45:37,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:45:37,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:45:37,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,522 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 4, 4]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 2, 2].
[2024-11-08 17:45:37,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:45:37,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:45:37,543 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:45:37,544 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:45:37,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:45:37,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:45:37,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:45:37,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:45:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:45:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-08 17:45:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-08 17:45:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:45:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 17:45:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-08 17:45:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 17:45:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 17:45:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 17:45:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-08 17:45:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure square
[2024-11-08 17:45:37,642 INFO L138 BoogieDeclarations]: Found implementation of procedure square
[2024-11-08 17:45:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:45:37,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:45:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 17:45:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 17:45:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-08 17:45:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 17:45:37,762 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:45:37,764 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:45:38,091 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-08 17:45:38,091 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:45:38,116 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:45:38,117 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 17:45:38,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:38 BoogieIcfgContainer
[2024-11-08 17:45:38,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:45:38,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:45:38,135 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:45:38,139 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:45:38,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:45:36" (1/3) ...
[2024-11-08 17:45:38,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9195a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:38, skipping insertion in model container
[2024-11-08 17:45:38,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37" (2/3) ...
[2024-11-08 17:45:38,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9195a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:38, skipping insertion in model container
[2024-11-08 17:45:38,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:38" (3/3) ...
[2024-11-08 17:45:38,142 INFO L112 eAbstractionObserver]: Analyzing ICFG array3_pattern.c
[2024-11-08 17:45:38,158 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:45:38,158 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 17:45:38,228 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:45:38,237 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48feb2a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:45:38,237 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 17:45:38,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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)
[2024-11-08 17:45:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-08 17:45:38,253 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:45:38,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:45:38,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:45:38,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:45:38,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1861031105, now seen corresponding path program 1 times
[2024-11-08 17:45:38,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:45:38,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261726880]
[2024-11-08 17:45:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:45:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:38,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:45:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:45:38,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:45:38,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261726880]
[2024-11-08 17:45:38,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261726880] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:45:38,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:45:38,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:45:38,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466570563]
[2024-11-08 17:45:38,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:45:38,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:45:38,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:45:38,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:45:38,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:45:38,567 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:45:38,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:45:38,594 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions.
[2024-11-08 17:45:38,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:45:38,596 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2024-11-08 17:45:38,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:45:38,604 INFO L225 Difference]: With dead ends: 61
[2024-11-08 17:45:38,604 INFO L226 Difference]: Without dead ends: 28
[2024-11-08 17:45:38,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:45:38,611 INFO L432 NwaCegarLoop]: 38 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, 38 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
[2024-11-08 17:45:38,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:45:38,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2024-11-08 17:45:38,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2024-11-08 17:45:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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)
[2024-11-08 17:45:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions.
[2024-11-08 17:45:38,654 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 15
[2024-11-08 17:45:38,654 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:45:38,655 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions.
[2024-11-08 17:45:38,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:45:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions.
[2024-11-08 17:45:38,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-08 17:45:38,658 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:45:38,658 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:45:38,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:45:38,659 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:45:38,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:45:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash 42702744, now seen corresponding path program 1 times
[2024-11-08 17:45:38,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:45:38,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109160035]
[2024-11-08 17:45:38,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:38,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:45:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:39,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:45:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:39,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-08 17:45:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:39,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 17:45:39,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:45:39,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109160035]
[2024-11-08 17:45:39,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109160035] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:45:39,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:45:39,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:45:39,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373150383]
[2024-11-08 17:45:39,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:45:39,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:45:39,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:45:39,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:45:39,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:45:39,185 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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)
[2024-11-08 17:45:39,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:45:39,230 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions.
[2024-11-08 17:45:39,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:45:39,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) Word has length 22
[2024-11-08 17:45:39,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:45:39,235 INFO L225 Difference]: With dead ends: 36
[2024-11-08 17:45:39,236 INFO L226 Difference]: Without dead ends: 32
[2024-11-08 17:45:39,236 INFO L431 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
[2024-11-08 17:45:39,238 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:45:39,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 82 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:45:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-11-08 17:45:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30.
[2024-11-08 17:45:39,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 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)
[2024-11-08 17:45:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions.
[2024-11-08 17:45:39,258 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 22
[2024-11-08 17:45:39,261 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:45:39,262 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions.
[2024-11-08 17:45:39,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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)
[2024-11-08 17:45:39,263 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions.
[2024-11-08 17:45:39,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 17:45:39,264 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:45:39,264 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:45:39,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:45:39,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:45:39,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:45:39,266 INFO L85 PathProgramCache]: Analyzing trace with hash -11574401, now seen corresponding path program 1 times
[2024-11-08 17:45:39,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:45:39,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637611258]
[2024-11-08 17:45:39,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:39,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:45:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:39,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:45:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:39,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-08 17:45:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:39,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 17:45:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:39,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 17:45:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-08 17:45:39,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:45:39,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637611258]
[2024-11-08 17:45:39,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637611258] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:45:39,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:45:39,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:45:39,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448990739]
[2024-11-08 17:45:39,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:45:39,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:45:39,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:45:39,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:45:39,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:45:39,617 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-08 17:45:39,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:45:39,739 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions.
[2024-11-08 17:45:39,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:45:39,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34
[2024-11-08 17:45:39,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:45:39,743 INFO L225 Difference]: With dead ends: 60
[2024-11-08 17:45:39,743 INFO L226 Difference]: Without dead ends: 36
[2024-11-08 17:45:39,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:45:39,748 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:45:39,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 66 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:45:39,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2024-11-08 17:45:39,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32.
[2024-11-08 17:45:39,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 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)
[2024-11-08 17:45:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions.
[2024-11-08 17:45:39,761 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 34
[2024-11-08 17:45:39,762 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:45:39,762 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions.
[2024-11-08 17:45:39,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-08 17:45:39,763 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions.
[2024-11-08 17:45:39,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-08 17:45:39,764 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:45:39,765 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:45:39,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:45:39,765 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:45:39,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:45:39,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1032820092, now seen corresponding path program 1 times
[2024-11-08 17:45:39,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:45:39,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092740118]
[2024-11-08 17:45:39,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:39,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:45:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 17:45:39,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [585742205]
[2024-11-08 17:45:39,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:39,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:45:39,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:45:39,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:45:39,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:45:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:40,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 70 conjuncts are in the unsatisfiable core
[2024-11-08 17:45:40,093 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:45:40,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:45:40,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:45:41,064 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size
[2024-11-08 17:45:41,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 21
[2024-11-08 17:45:41,105 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size
[2024-11-08 17:45:41,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 21
[2024-11-08 17:45:42,020 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:45:42,021 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:45:47,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:45:47,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092740118]
[2024-11-08 17:45:47,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 17:45:47,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585742205]
[2024-11-08 17:45:47,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585742205] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:45:47,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:45:47,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23
[2024-11-08 17:45:47,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029659480]
[2024-11-08 17:45:47,881 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:45:47,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-08 17:45:47,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:45:47,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-08 17:45:47,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=928, Unknown=0, NotChecked=0, Total=1056
[2024-11-08 17:45:47,885 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 23 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 17 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:45:51,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:45:51,034 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions.
[2024-11-08 17:45:51,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2024-11-08 17:45:51,036 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 17 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36
[2024-11-08 17:45:51,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:45:51,037 INFO L225 Difference]: With dead ends: 81
[2024-11-08 17:45:51,038 INFO L226 Difference]: Without dead ends: 47
[2024-11-08 17:45:51,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=325, Invalid=2027, Unknown=0, NotChecked=0, Total=2352
[2024-11-08 17:45:51,043 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 72 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:45:51,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 209 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 17:45:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-08 17:45:51,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38.
[2024-11-08 17:45:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:45:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions.
[2024-11-08 17:45:51,067 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 36
[2024-11-08 17:45:51,068 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:45:51,068 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions.
[2024-11-08 17:45:51,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 17 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:45:51,069 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions.
[2024-11-08 17:45:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2024-11-08 17:45:51,072 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:45:51,072 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:45:51,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 17:45:51,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:45:51,274 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:45:51,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:45:51,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1097581641, now seen corresponding path program 2 times
[2024-11-08 17:45:51,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:45:51,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643174986]
[2024-11-08 17:45:51,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:51,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:45:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:51,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:45:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:51,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 17:45:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:51,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2024-11-08 17:45:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:51,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2024-11-08 17:45:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:45:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-08 17:45:51,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:45:51,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643174986]
[2024-11-08 17:45:51,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643174986] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:45:51,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087982236]
[2024-11-08 17:45:51,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:45:51,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:45:51,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:45:51,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:45:51,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:45:51,781 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 17:45:51,781 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:45:51,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:45:51,787 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:45:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:45:51,931 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:45:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-08 17:45:52,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087982236] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:45:52,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:45:52,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11
[2024-11-08 17:45:52,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261544925]
[2024-11-08 17:45:52,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:45:52,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 17:45:52,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:45:52,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:45:52,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:45:52,073 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9)
[2024-11-08 17:45:52,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:45:52,344 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions.
[2024-11-08 17:45:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-08 17:45:52,345 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 38
[2024-11-08 17:45:52,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:45:52,346 INFO L225 Difference]: With dead ends: 72
[2024-11-08 17:45:52,346 INFO L226 Difference]: Without dead ends: 48
[2024-11-08 17:45:52,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210
[2024-11-08 17:45:52,348 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:45:52,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 122 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:45:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2024-11-08 17:45:52,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42.
[2024-11-08 17:45:52,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:45:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions.
[2024-11-08 17:45:52,363 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 38
[2024-11-08 17:45:52,364 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:45:52,364 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions.
[2024-11-08 17:45:52,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9)
[2024-11-08 17:45:52,365 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions.
[2024-11-08 17:45:52,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-08 17:45:52,366 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:45:52,366 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:45:52,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 17:45:52,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:45:52,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:45:52,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:45:52,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1541738160, now seen corresponding path program 3 times
[2024-11-08 17:45:52,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:45:52,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463026094]
[2024-11-08 17:45:52,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:52,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:45:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 17:45:52,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828277854]
[2024-11-08 17:45:52,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 17:45:52,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:45:52,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:45:52,632 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:45:52,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:45:52,833 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-08 17:45:52,833 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:45:52,838 WARN L253 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 108 conjuncts are in the unsatisfiable core
[2024-11-08 17:45:52,846 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:45:53,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:45:53,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:45:53,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-08 17:45:53,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-08 17:45:54,297 INFO L349 Elim1Store]: treesize reduction 133, result has 23.1 percent of original size
[2024-11-08 17:45:54,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 50 treesize of output 63
[2024-11-08 17:45:54,405 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size
[2024-11-08 17:45:54,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 123
[2024-11-08 17:45:54,499 INFO L349 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size
[2024-11-08 17:45:54,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 157
[2024-11-08 17:45:54,658 INFO L349 Elim1Store]: treesize reduction 95, result has 22.8 percent of original size
[2024-11-08 17:45:54,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 70
[2024-11-08 17:45:57,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:45:57,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 109 treesize of output 125
[2024-11-08 17:45:59,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:45:59,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 112 treesize of output 220
[2024-11-08 17:46:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:46:07,995 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:46:29,352 WARN L286 SmtUtils]: Spent 13.03s on a formula simplification. DAG size of input: 134 DAG size of output: 126 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-08 17:46:29,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:46:29,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463026094]
[2024-11-08 17:46:29,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 17:46:29,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828277854]
[2024-11-08 17:46:29,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828277854] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:46:29,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:46:29,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34
[2024-11-08 17:46:29,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97314011]
[2024-11-08 17:46:29,358 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:46:29,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2024-11-08 17:46:29,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:46:29,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2024-11-08 17:46:29,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=2180, Unknown=1, NotChecked=0, Total=2550
[2024-11-08 17:46:29,362 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 34 states, 30 states have (on average 1.2) internal successors, (36), 24 states have internal predecessors, (36), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:46:32,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:46:33,000 INFO L93 Difference]: Finished difference Result 123 states and 140 transitions.
[2024-11-08 17:46:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states.
[2024-11-08 17:46:33,001 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 1.2) internal successors, (36), 24 states have internal predecessors, (36), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 50
[2024-11-08 17:46:33,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:46:33,003 INFO L225 Difference]: With dead ends: 123
[2024-11-08 17:46:33,003 INFO L226 Difference]: Without dead ends: 119
[2024-11-08 17:46:33,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=648, Invalid=3907, Unknown=1, NotChecked=0, Total=4556
[2024-11-08 17:46:33,009 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 97 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:46:33,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 278 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-08 17:46:33,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2024-11-08 17:46:33,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 75.
[2024-11-08 17:46:33,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 56 states have internal predecessors, (62), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2024-11-08 17:46:33,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions.
[2024-11-08 17:46:33,044 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 50
[2024-11-08 17:46:33,044 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:46:33,044 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions.
[2024-11-08 17:46:33,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 1.2) internal successors, (36), 24 states have internal predecessors, (36), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:46:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions.
[2024-11-08 17:46:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-08 17:46:33,047 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:46:33,047 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:46:33,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-08 17:46:33,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:46:33,248 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:46:33,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:46:33,249 INFO L85 PathProgramCache]: Analyzing trace with hash -177640523, now seen corresponding path program 4 times
[2024-11-08 17:46:33,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:46:33,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400616264]
[2024-11-08 17:46:33,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:46:33,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:46:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:33,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:46:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:33,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 17:46:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:33,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2024-11-08 17:46:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:33,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31
[2024-11-08 17:46:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:33,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-08 17:46:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:33,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 17:46:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-08 17:46:33,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:46:33,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400616264]
[2024-11-08 17:46:33,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400616264] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:46:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797421797]
[2024-11-08 17:46:33,547 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-08 17:46:33,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:46:33,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:46:33,550 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:46:33,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 17:46:33,683 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-08 17:46:33,683 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:46:33,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 17:46:33,688 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:46:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-08 17:46:33,874 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:46:34,006 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-08 17:46:34,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797421797] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:46:34,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:46:34,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14
[2024-11-08 17:46:34,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179009285]
[2024-11-08 17:46:34,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:46:34,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-08 17:46:34,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:46:34,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-08 17:46:34,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182
[2024-11-08 17:46:34,010 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 7 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13)
[2024-11-08 17:46:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:46:34,504 INFO L93 Difference]: Finished difference Result 122 states and 142 transitions.
[2024-11-08 17:46:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 17:46:34,505 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 7 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 52
[2024-11-08 17:46:34,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:46:34,507 INFO L225 Difference]: With dead ends: 122
[2024-11-08 17:46:34,508 INFO L226 Difference]: Without dead ends: 118
[2024-11-08 17:46:34,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 105 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380
[2024-11-08 17:46:34,509 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 27 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:46:34,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 231 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:46:34,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2024-11-08 17:46:34,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 107.
[2024-11-08 17:46:34,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 78 states have (on average 1.0897435897435896) internal successors, (85), 79 states have internal predecessors, (85), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-08 17:46:34,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions.
[2024-11-08 17:46:34,552 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 52
[2024-11-08 17:46:34,552 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:46:34,553 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions.
[2024-11-08 17:46:34,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 7 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13)
[2024-11-08 17:46:34,554 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions.
[2024-11-08 17:46:34,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-11-08 17:46:34,556 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:46:34,556 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:46:34,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 17:46:34,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:46:34,760 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:46:34,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:46:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2031179571, now seen corresponding path program 1 times
[2024-11-08 17:46:34,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:46:34,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470135712]
[2024-11-08 17:46:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:46:34,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:46:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 17:46:34,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356052708]
[2024-11-08 17:46:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:46:34,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:46:34,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:46:34,880 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:46:34,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 17:46:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:35,526 WARN L253 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 119 conjuncts are in the unsatisfiable core
[2024-11-08 17:46:35,539 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:46:35,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:46:35,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:46:35,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-08 17:46:35,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-08 17:46:36,644 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size
[2024-11-08 17:46:36,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 187 treesize of output 176
[2024-11-08 17:46:36,801 INFO L349 Elim1Store]: treesize reduction 133, result has 23.1 percent of original size
[2024-11-08 17:46:36,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 50 treesize of output 63
[2024-11-08 17:46:36,949 INFO L349 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size
[2024-11-08 17:46:36,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 157
[2024-11-08 17:46:37,068 INFO L349 Elim1Store]: treesize reduction 95, result has 22.8 percent of original size
[2024-11-08 17:46:37,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 70
[2024-11-08 17:46:38,766 INFO L349 Elim1Store]: treesize reduction 216, result has 26.8 percent of original size
[2024-11-08 17:46:38,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 123 treesize of output 163
[2024-11-08 17:46:38,867 INFO L349 Elim1Store]: treesize reduction 32, result has 52.2 percent of original size
[2024-11-08 17:46:38,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 187 treesize of output 191
[2024-11-08 17:46:40,602 INFO L349 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size
[2024-11-08 17:46:40,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 456 treesize of output 501
[2024-11-08 17:46:40,873 INFO L349 Elim1Store]: treesize reduction 84, result has 31.7 percent of original size
[2024-11-08 17:46:40,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 135
[2024-11-08 17:46:43,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:46:43,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 157 treesize of output 209
[2024-11-08 17:47:47,310 WARN L286 SmtUtils]: Spent 35.21s on a formula simplification that was a NOOP. DAG size: 1876 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1)
[2024-11-08 17:47:47,312 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:47:47,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 50 select indices, 50 select index equivalence classes, 1 disjoint index pairs (out of 1225 index pairs), introduced 50 new quantified variables, introduced 1225 case distinctions, treesize of input 563 treesize of output 5111
[2024-11-08 17:52:09,218 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-11-08 17:52:09,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101
[2024-11-08 17:52:09,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:52:09,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470135712]
[2024-11-08 17:52:09,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 17:52:09,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356052708]
[2024-11-08 17:52:09,220 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2024-11-08 17:52:09,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 17:52:09,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:52:09,422 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107)
at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:290)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:159)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:143)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
... 67 more
[2024-11-08 17:52:09,426 INFO L158 Benchmark]: Toolchain (without parser) took 392486.74ms. Allocated memory was 140.5MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 102.3MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB.
[2024-11-08 17:52:09,427 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 140.5MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:52:09,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.83ms. Allocated memory is still 140.5MB. Free memory was 101.9MB in the beginning and 88.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 17:52:09,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.62ms. Allocated memory is still 140.5MB. Free memory was 88.9MB in the beginning and 87.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:52:09,430 INFO L158 Benchmark]: Boogie Preprocessor took 71.44ms. Allocated memory is still 140.5MB. Free memory was 87.2MB in the beginning and 85.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:52:09,431 INFO L158 Benchmark]: RCFGBuilder took 574.73ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 85.2MB in the beginning and 142.5MB in the end (delta: -57.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB.
[2024-11-08 17:52:09,431 INFO L158 Benchmark]: TraceAbstraction took 391291.31ms. Allocated memory was 174.1MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 143.8MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB.
[2024-11-08 17:52:09,433 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.38ms. Allocated memory is still 140.5MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 474.83ms. Allocated memory is still 140.5MB. Free memory was 101.9MB in the beginning and 88.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 52.62ms. Allocated memory is still 140.5MB. Free memory was 88.9MB in the beginning and 87.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 71.44ms. Allocated memory is still 140.5MB. Free memory was 87.2MB in the beginning and 85.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 574.73ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 85.2MB in the beginning and 142.5MB in the end (delta: -57.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 391291.31ms. Allocated memory was 174.1MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 143.8MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
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_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array3_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX --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 8c9f77a5f5cfb41429e6b2e557580f5f8a855ca718c241fb5a07541ef3b21ab2
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:52:12,421 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:52:12,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-08 17:52:12,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:52:12,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:52:12,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:52:12,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:52:12,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:52:12,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:52:12,614 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:52:12,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:52:12,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:52:12,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:52:12,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:52:12,620 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:52:12,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:52:12,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:52:12,622 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:52:12,626 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:52:12,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:52:12,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:52:12,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:52:12,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:52:12,628 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:52:12,629 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 17:52:12,629 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:52:12,629 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 17:52:12,630 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:52:12,630 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:52:12,630 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:52:12,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:52:12,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:52:12,636 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:52:12,636 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:52:12,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:52:12,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:52:12,637 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:52:12,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:52:12,637 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 17:52:12,638 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 17:52:12,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:52:12,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:52:12,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:52:12,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:52:12,660 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_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9f77a5f5cfb41429e6b2e557580f5f8a855ca718c241fb5a07541ef3b21ab2
[2024-11-08 17:52:13,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:52:13,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:52:13,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:52:13,214 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:52:13,215 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:52:13,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/array-patterns/array3_pattern.c
Unable to find full path for "g++"
[2024-11-08 17:52:15,330 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:52:15,617 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:52:15,618 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/sv-benchmarks/c/array-patterns/array3_pattern.c
[2024-11-08 17:52:15,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/data/b12398ef7/3d1827d46897436287817ea2f119d800/FLAG88eec92c6
[2024-11-08 17:52:15,643 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/data/b12398ef7/3d1827d46897436287817ea2f119d800
[2024-11-08 17:52:15,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:52:15,647 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:52:15,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:52:15,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:52:15,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:52:15,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:52:15" (1/1) ...
[2024-11-08 17:52:15,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167e164f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:15, skipping insertion in model container
[2024-11-08 17:52:15,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:52:15" (1/1) ...
[2024-11-08 17:52:15,687 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:52:15,949 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/sv-benchmarks/c/array-patterns/array3_pattern.c[1393,1406]
[2024-11-08 17:52:15,996 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:52:16,018 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:52:16,034 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/sv-benchmarks/c/array-patterns/array3_pattern.c[1393,1406]
[2024-11-08 17:52:16,058 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:52:16,086 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:52:16,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16 WrapperNode
[2024-11-08 17:52:16,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:52:16,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:52:16,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:52:16,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:52:16,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,147 INFO L138 Inliner]: procedures = 19, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82
[2024-11-08 17:52:16,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:52:16,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:52:16,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:52:16,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:52:16,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,170 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,198 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 4, 4]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 2, 2].
[2024-11-08 17:52:16,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:52:16,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:52:16,241 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:52:16,242 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:52:16,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (1/1) ...
[2024-11-08 17:52:16,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:52:16,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:52:16,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:52:16,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:52:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 17:52:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-08 17:52:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-08 17:52:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-08 17:52:16,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-08 17:52:16,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 17:52:16,382 INFO L130 BoogieDeclarations]: Found specification of procedure square
[2024-11-08 17:52:16,382 INFO L138 BoogieDeclarations]: Found implementation of procedure square
[2024-11-08 17:52:16,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-08 17:52:16,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-08 17:52:16,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-08 17:52:16,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:52:16,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:52:16,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 17:52:16,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-08 17:52:16,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-08 17:52:16,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-08 17:52:16,565 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:52:16,568 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:52:16,929 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-08 17:52:16,930 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:52:16,945 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:52:16,945 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 17:52:16,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:52:16 BoogieIcfgContainer
[2024-11-08 17:52:16,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:52:16,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:52:16,949 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:52:16,953 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:52:16,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:52:15" (1/3) ...
[2024-11-08 17:52:16,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfff9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:52:16, skipping insertion in model container
[2024-11-08 17:52:16,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:52:16" (2/3) ...
[2024-11-08 17:52:16,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfff9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:52:16, skipping insertion in model container
[2024-11-08 17:52:16,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:52:16" (3/3) ...
[2024-11-08 17:52:16,956 INFO L112 eAbstractionObserver]: Analyzing ICFG array3_pattern.c
[2024-11-08 17:52:16,974 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:52:16,975 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 17:52:17,038 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:52:17,046 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c1e7bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:52:17,046 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 17:52:17,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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)
[2024-11-08 17:52:17,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-08 17:52:17,060 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:52:17,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:52:17,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:52:17,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:52:17,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1861031105, now seen corresponding path program 1 times
[2024-11-08 17:52:17,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:52:17,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35825945]
[2024-11-08 17:52:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:52:17,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:52:17,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:52:17,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:52:17,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:52:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:52:17,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-08 17:52:17,256 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:52:17,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:52:17,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:52:17,290 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:52:17,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35825945]
[2024-11-08 17:52:17,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35825945] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:52:17,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:52:17,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:52:17,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675086976]
[2024-11-08 17:52:17,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:52:17,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:52:17,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:52:17,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:52:17,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:52:17,335 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:52:17,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:52:17,359 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions.
[2024-11-08 17:52:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:52:17,362 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2024-11-08 17:52:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:52:17,370 INFO L225 Difference]: With dead ends: 61
[2024-11-08 17:52:17,370 INFO L226 Difference]: Without dead ends: 28
[2024-11-08 17:52:17,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:52:17,378 INFO L432 NwaCegarLoop]: 38 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, 38 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
[2024-11-08 17:52:17,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:52:17,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2024-11-08 17:52:17,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2024-11-08 17:52:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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)
[2024-11-08 17:52:17,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions.
[2024-11-08 17:52:17,420 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 15
[2024-11-08 17:52:17,422 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:52:17,422 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions.
[2024-11-08 17:52:17,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:52:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions.
[2024-11-08 17:52:17,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-08 17:52:17,427 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:52:17,427 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:52:17,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 17:52:17,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:52:17,632 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:52:17,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:52:17,633 INFO L85 PathProgramCache]: Analyzing trace with hash 42702744, now seen corresponding path program 1 times
[2024-11-08 17:52:17,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:52:17,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993082889]
[2024-11-08 17:52:17,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:52:17,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:52:17,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:52:17,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:52:17,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:52:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:52:17,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 17:52:17,786 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:52:17,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:52:17,947 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:52:17,948 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:52:17,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993082889]
[2024-11-08 17:52:17,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993082889] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:52:17,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:52:17,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:52:17,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250025107]
[2024-11-08 17:52:17,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:52:17,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:52:17,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:52:17,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:52:17,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:52:17,955 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:52:18,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:52:18,464 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions.
[2024-11-08 17:52:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:52:18,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22
[2024-11-08 17:52:18,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:52:18,467 INFO L225 Difference]: With dead ends: 62
[2024-11-08 17:52:18,468 INFO L226 Difference]: Without dead ends: 40
[2024-11-08 17:52:18,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:52:18,470 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 40 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:52:18,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 59 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:52:18,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-11-08 17:52:18,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36.
[2024-11-08 17:52:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:52:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions.
[2024-11-08 17:52:18,484 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 22
[2024-11-08 17:52:18,484 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:52:18,484 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions.
[2024-11-08 17:52:18,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:52:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions.
[2024-11-08 17:52:18,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-08 17:52:18,486 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:52:18,487 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:52:18,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 17:52:18,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:52:18,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:52:18,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:52:18,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1032820092, now seen corresponding path program 1 times
[2024-11-08 17:52:18,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:52:18,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569364153]
[2024-11-08 17:52:18,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:52:18,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:52:18,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:52:18,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:52:18,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:52:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:52:18,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 39 conjuncts are in the unsatisfiable core
[2024-11-08 17:52:18,988 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:52:19,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:52:19,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:52:20,811 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:52:20,950 INFO L349 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size
[2024-11-08 17:52:20,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 53 treesize of output 50
[2024-11-08 17:52:21,035 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:52:21,183 INFO L349 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size
[2024-11-08 17:52:21,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 46
[2024-11-08 17:52:24,441 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-11-08 17:52:24,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14
[2024-11-08 17:52:31,369 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:52:31,376 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:52:31,534 INFO L349 Elim1Store]: treesize reduction 41, result has 6.8 percent of original size
[2024-11-08 17:52:31,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 22
[2024-11-08 17:52:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:52:43,318 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:54:05,317 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:54:05,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569364153]
[2024-11-08 17:54:05,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569364153] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:54:05,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1782431648]
[2024-11-08 17:54:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:54:05,319 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-08 17:54:05,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/cvc4
[2024-11-08 17:54:05,322 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-08 17:54:05,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-08 17:54:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:54:05,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 39 conjuncts are in the unsatisfiable core
[2024-11-08 17:54:05,774 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:54:11,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:54:11,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:54:18,902 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:54:19,056 INFO L349 Elim1Store]: treesize reduction 35, result has 23.9 percent of original size
[2024-11-08 17:54:19,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 47
[2024-11-08 17:54:19,108 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:54:19,240 INFO L349 Elim1Store]: treesize reduction 35, result has 23.9 percent of original size
[2024-11-08 17:54:19,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 40
[2024-11-08 17:54:21,174 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-11-08 17:54:21,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14
[2024-11-08 17:54:26,054 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:54:26,060 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:54:26,244 INFO L349 Elim1Store]: treesize reduction 41, result has 6.8 percent of original size
[2024-11-08 17:54:26,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 22
[2024-11-08 17:54:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:54:28,394 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:55:47,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1782431648] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:55:47,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:55:47,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 28
[2024-11-08 17:55:47,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200525904]
[2024-11-08 17:55:47,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:55:47,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-11-08 17:55:47,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:55:47,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-11-08 17:55:47,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1438, Unknown=7, NotChecked=0, Total=1640
[2024-11-08 17:55:47,982 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 28 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 21 states have internal predecessors, (38), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:55:58,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:25,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:57:22,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:57:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:57:36,093 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions.
[2024-11-08 17:57:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states.
[2024-11-08 17:57:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 21 states have internal predecessors, (38), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 36
[2024-11-08 17:57:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:57:36,103 INFO L225 Difference]: With dead ends: 81
[2024-11-08 17:57:36,103 INFO L226 Difference]: Without dead ends: 47
[2024-11-08 17:57:36,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 63 SyntacticMatches, 8 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 256.2s TimeCoverageRelationStatistics Valid=500, Invalid=3151, Unknown=9, NotChecked=0, Total=3660
[2024-11-08 17:57:36,106 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 130 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 67 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:57:36,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 209 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 421 Invalid, 3 Unknown, 0 Unchecked, 30.9s Time]
[2024-11-08 17:57:36,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-08 17:57:36,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38.
[2024-11-08 17:57:36,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:57:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions.
[2024-11-08 17:57:36,120 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 36
[2024-11-08 17:57:36,120 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:57:36,121 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions.
[2024-11-08 17:57:36,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 21 states have internal predecessors, (38), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:57:36,121 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions.
[2024-11-08 17:57:36,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2024-11-08 17:57:36,122 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:57:36,123 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:57:36,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2024-11-08 17:57:36,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-08 17:57:36,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:36,524 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:57:36,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:57:36,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1097581641, now seen corresponding path program 2 times
[2024-11-08 17:57:36,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:57:36,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727250727]
[2024-11-08 17:57:36,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:57:36,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:36,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:57:36,527 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:57:36,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 17:57:36,673 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 17:57:36,674 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:57:36,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:57:36,688 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:57:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:57:37,277 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:57:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-08 17:57:38,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:57:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727250727]
[2024-11-08 17:57:38,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727250727] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:57:38,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:57:38,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13
[2024-11-08 17:57:38,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500756013]
[2024-11-08 17:57:38,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:57:38,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-08 17:57:38,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:57:38,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-08 17:57:38,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:57:38,187 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-08 17:57:40,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:57:40,131 INFO L93 Difference]: Finished difference Result 88 states and 114 transitions.
[2024-11-08 17:57:40,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-08 17:57:40,132 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 38
[2024-11-08 17:57:40,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:57:40,134 INFO L225 Difference]: With dead ends: 88
[2024-11-08 17:57:40,134 INFO L226 Difference]: Without dead ends: 64
[2024-11-08 17:57:40,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342
[2024-11-08 17:57:40,136 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 58 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:57:40,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 162 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-08 17:57:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2024-11-08 17:57:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42.
[2024-11-08 17:57:40,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:57:40,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions.
[2024-11-08 17:57:40,152 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 38
[2024-11-08 17:57:40,152 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:57:40,152 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions.
[2024-11-08 17:57:40,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-08 17:57:40,153 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions.
[2024-11-08 17:57:40,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-08 17:57:40,154 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:57:40,154 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:57:40,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 17:57:40,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:40,355 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:57:40,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:57:40,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1541738160, now seen corresponding path program 3 times
[2024-11-08 17:57:40,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:57:40,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [312070939]
[2024-11-08 17:57:40,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 17:57:40,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:40,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:57:40,357 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:57:40,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0a47ae-e104-4b0f-81ba-8ab3a2fc7910/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 17:57:41,248 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-08 17:57:41,248 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:57:41,277 WARN L253 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 61 conjuncts are in the unsatisfiable core
[2024-11-08 17:57:41,284 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:57:41,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:57:42,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:57:42,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-08 17:57:42,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-08 17:57:46,795 INFO L349 Elim1Store]: treesize reduction 188, result has 34.0 percent of original size
[2024-11-08 17:57:46,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 67 treesize of output 128
[2024-11-08 17:57:47,616 INFO L349 Elim1Store]: treesize reduction 162, result has 23.9 percent of original size
[2024-11-08 17:57:47,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 53 treesize of output 76
[2024-11-08 17:59:18,225 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 205 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-08 17:59:36,045 WARN L286 SmtUtils]: Spent 8.62s on a formula simplification that was a NOOP. DAG size: 205 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)