./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test23-2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test23-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1 --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 6107b0424f9f7d96b4a493f3ee8e42c81c6509c50d1ec834cc7d1fa0b8a2c5d3
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 10:09:02,306 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 10:09:02,359 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 10:09:02,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 10:09:02,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 10:09:02,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 10:09:02,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 10:09:02,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 10:09:02,385 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 10:09:02,385 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 10:09:02,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 10:09:02,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 10:09:02,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 10:09:02,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 10:09:02,386 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 10:09:02,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 10:09:02,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 10:09:02,386 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 10:09:02,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 10:09:02,387 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 10:09:02,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:09:02,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:09:02,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:09:02,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:09:02,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 10:09:02,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:09:02,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:09:02,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:09:02,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:09:02,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 10:09:02,389 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1
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 -> 6107b0424f9f7d96b4a493f3ee8e42c81c6509c50d1ec834cc7d1fa0b8a2c5d3
[2024-12-02 10:09:02,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 10:09:02,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 10:09:02,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 10:09:02,620 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 10:09:02,621 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 10:09:02,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-regression/test23-2.c
[2024-12-02 10:09:05,210 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/data/d6ea9a4cf/dd29440c9569439d8e77a38986469b83/FLAGa48e271b4
[2024-12-02 10:09:05,429 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 10:09:05,430 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/sv-benchmarks/c/ldv-regression/test23-2.c
[2024-12-02 10:09:05,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/data/d6ea9a4cf/dd29440c9569439d8e77a38986469b83/FLAGa48e271b4
[2024-12-02 10:09:05,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/data/d6ea9a4cf/dd29440c9569439d8e77a38986469b83
[2024-12-02 10:09:05,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 10:09:05,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 10:09:05,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 10:09:05,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 10:09:05,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 10:09:05,800 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:05" (1/1) ...
[2024-12-02 10:09:05,801 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb871c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05, skipping insertion in model container
[2024-12-02 10:09:05,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:05" (1/1) ...
[2024-12-02 10:09:05,815 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 10:09:05,962 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_54bad146-bfe0-4b5a-a193-250bac0f3e77/sv-benchmarks/c/ldv-regression/test23-2.c[1070,1083]
[2024-12-02 10:09:05,966 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:09:05,981 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 10:09:05,999 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_54bad146-bfe0-4b5a-a193-250bac0f3e77/sv-benchmarks/c/ldv-regression/test23-2.c[1070,1083]
[2024-12-02 10:09:05,999 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:09:06,019 INFO L204 MainTranslator]: Completed translation
[2024-12-02 10:09:06,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06 WrapperNode
[2024-12-02 10:09:06,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 10:09:06,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 10:09:06,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 10:09:06,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 10:09:06,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,050 INFO L138 Inliner]: procedures = 16, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 112
[2024-12-02 10:09:06,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 10:09:06,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 10:09:06,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 10:09:06,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 10:09:06,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,073 INFO L175 MemorySlicer]: Split 46 memory accesses to 2 slices as follows [2, 44]. 96 percent of accesses are in the largest equivalence class. The 38 initializations are split as follows [2, 36]. The 5 writes are split as follows [0, 5].
[2024-12-02 10:09:06,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,078 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 10:09:06,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 10:09:06,086 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 10:09:06,086 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 10:09:06,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (1/1) ...
[2024-12-02 10:09:06,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:09:06,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:09:06,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 10:09:06,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 10:09:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 10:09:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 10:09:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 10:09:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 10:09:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 10:09:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy
[2024-12-02 10:09:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy
[2024-12-02 10:09:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 10:09:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 10:09:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 10:09:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 10:09:06,197 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 10:09:06,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 10:09:06,330 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live.
[2024-12-02 10:09:06,330 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 10:09:06,338 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 10:09:06,338 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 10:09:06,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:06 BoogieIcfgContainer
[2024-12-02 10:09:06,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 10:09:06,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 10:09:06,341 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 10:09:06,344 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 10:09:06,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:09:05" (1/3) ...
[2024-12-02 10:09:06,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b147465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:06, skipping insertion in model container
[2024-12-02 10:09:06,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:06" (2/3) ...
[2024-12-02 10:09:06,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b147465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:06, skipping insertion in model container
[2024-12-02 10:09:06,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:06" (3/3) ...
[2024-12-02 10:09:06,346 INFO L128 eAbstractionObserver]: Analyzing ICFG test23-2.c
[2024-12-02 10:09:06,360 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 10:09:06,362 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test23-2.c that has 2 procedures, 23 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 10:09:06,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 10:09:06,423 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;@328ca1fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 10:09:06,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 10:09:06,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 19 states have internal predecessors, (23), 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)
[2024-12-02 10:09:06,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-12-02 10:09:06,433 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:09:06,434 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:09:06,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:09:06,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:09:06,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1959839612, now seen corresponding path program 1 times
[2024-12-02 10:09:06,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:09:06,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523391518]
[2024-12-02 10:09:06,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:09:06,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:09:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:09:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 10:09:06,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:09:06,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523391518]
[2024-12-02 10:09:06,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523391518] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:09:06,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:09:06,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:09:06,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318101842]
[2024-12-02 10:09:06,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:09:06,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 10:09:06,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:09:06,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 10:09:06,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 10:09:06,643 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 10:09:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:09:06,655 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions.
[2024-12-02 10:09:06,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 10:09:06,657 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19
[2024-12-02 10:09:06,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:09:06,661 INFO L225 Difference]: With dead ends: 32
[2024-12-02 10:09:06,661 INFO L226 Difference]: Without dead ends: 19
[2024-12-02 10:09:06,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 10:09:06,664 INFO L435 NwaCegarLoop]: 25 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, 25 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
[2024-12-02 10:09:06,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 10:09:06,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-12-02 10:09:06,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2024-12-02 10:09:06,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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)
[2024-12-02 10:09:06,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions.
[2024-12-02 10:09:06,693 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 19
[2024-12-02 10:09:06,694 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:09:06,695 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions.
[2024-12-02 10:09:06,695 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 10:09:06,695 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions.
[2024-12-02 10:09:06,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-12-02 10:09:06,696 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:09:06,696 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:09:06,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 10:09:06,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:09:06,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:09:06,697 INFO L85 PathProgramCache]: Analyzing trace with hash 362219671, now seen corresponding path program 1 times
[2024-12-02 10:09:06,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:09:06,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149277053]
[2024-12-02 10:09:06,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:09:06,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:09:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:09:08,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-02 10:09:08,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:09:08,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149277053]
[2024-12-02 10:09:08,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149277053] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:09:08,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:09:08,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 10:09:08,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252678876]
[2024-12-02 10:09:08,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:09:08,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 10:09:08,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:09:08,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 10:09:08,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-12-02 10:09:08,599 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 10:09:08,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:09:08,816 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions.
[2024-12-02 10:09:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 10:09:08,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20
[2024-12-02 10:09:08,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:09:08,818 INFO L225 Difference]: With dead ends: 27
[2024-12-02 10:09:08,818 INFO L226 Difference]: Without dead ends: 22
[2024-12-02 10:09:08,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2024-12-02 10:09:08,819 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 24 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 10:09:08,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 56 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 10:09:08,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-12-02 10:09:08,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21.
[2024-12-02 10:09:08,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 10:09:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2024-12-02 10:09:08,825 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 20
[2024-12-02 10:09:08,825 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:09:08,826 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2024-12-02 10:09:08,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 10:09:08,826 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2024-12-02 10:09:08,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-12-02 10:09:08,827 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:09:08,827 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:09:08,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 10:09:08,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:09:08,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:09:08,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1194991972, now seen corresponding path program 1 times
[2024-12-02 10:09:08,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:09:08,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033308642]
[2024-12-02 10:09:08,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:09:08,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:09:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:09:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-02 10:09:09,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:09:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033308642]
[2024-12-02 10:09:09,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033308642] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 10:09:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440850673]
[2024-12-02 10:09:09,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:09:09,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:09:09,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:09:09,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:09:09,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 10:09:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:09:10,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-12-02 10:09:10,014 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:09:10,102 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 39 treesize of output 1
[2024-12-02 10:09:10,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 10:09:10,217 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 27 treesize of output 12
[2024-12-02 10:09:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 10:09:10,235 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:09:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 10:09:10,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440850673] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:09:10,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 10:09:10,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15
[2024-12-02 10:09:10,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69069846]
[2024-12-02 10:09:10,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:09:10,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-12-02 10:09:10,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:09:10,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-12-02 10:09:10,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210
[2024-12-02 10:09:10,321 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:09:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:09:10,585 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions.
[2024-12-02 10:09:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 10:09:10,585 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23
[2024-12-02 10:09:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:09:10,586 INFO L225 Difference]: With dead ends: 36
[2024-12-02 10:09:10,586 INFO L226 Difference]: Without dead ends: 31
[2024-12-02 10:09:10,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552
[2024-12-02 10:09:10,587 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 30 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 10:09:10,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 66 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 10:09:10,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2024-12-02 10:09:10,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30.
[2024-12-02 10:09:10,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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)
[2024-12-02 10:09:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions.
[2024-12-02 10:09:10,594 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 23
[2024-12-02 10:09:10,594 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:09:10,594 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions.
[2024-12-02 10:09:10,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:09:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions.
[2024-12-02 10:09:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-12-02 10:09:10,595 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:09:10,595 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:09:10,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 10:09:10,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:09:10,796 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:09:10,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:09:10,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1097346135, now seen corresponding path program 2 times
[2024-12-02 10:09:10,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:09:10,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914947621]
[2024-12-02 10:09:10,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 10:09:10,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:09:10,857 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 10:09:10,857 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 10:09:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-02 10:09:13,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:09:13,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914947621]
[2024-12-02 10:09:13,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914947621] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 10:09:13,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247733690]
[2024-12-02 10:09:13,541 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 10:09:13,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:09:13,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:09:13,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:09:13,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 10:09:13,637 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 10:09:13,637 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 10:09:13,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-12-02 10:09:13,641 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:09:13,668 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 39 treesize of output 1
[2024-12-02 10:09:13,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 10:09:13,940 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 27 treesize of output 12
[2024-12-02 10:09:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 10:09:13,972 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:09:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 10:09:14,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247733690] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:09:14,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 10:09:14,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8, 8] total 30
[2024-12-02 10:09:14,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180215047]
[2024-12-02 10:09:14,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:09:14,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states
[2024-12-02 10:09:14,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:09:14,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants.
[2024-12-02 10:09:14,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870
[2024-12-02 10:09:14,213 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 30 states, 29 states have (on average 2.2758620689655173) internal successors, (66), 29 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 10:09:16,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:09:16,040 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions.
[2024-12-02 10:09:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-12-02 10:09:16,041 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.2758620689655173) internal successors, (66), 29 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32
[2024-12-02 10:09:16,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:09:16,042 INFO L225 Difference]: With dead ends: 54
[2024-12-02 10:09:16,042 INFO L226 Difference]: Without dead ends: 49
[2024-12-02 10:09:16,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=566, Invalid=2190, Unknown=0, NotChecked=0, Total=2756
[2024-12-02 10:09:16,045 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 92 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 10:09:16,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 138 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 10:09:16,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2024-12-02 10:09:16,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48.
[2024-12-02 10:09:16,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 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)
[2024-12-02 10:09:16,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions.
[2024-12-02 10:09:16,053 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 32
[2024-12-02 10:09:16,053 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:09:16,053 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions.
[2024-12-02 10:09:16,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.2758620689655173) internal successors, (66), 29 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 10:09:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions.
[2024-12-02 10:09:16,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-12-02 10:09:16,054 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:09:16,054 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:09:16,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 10:09:16,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:09:16,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:09:16,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:09:16,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1229941257, now seen corresponding path program 3 times
[2024-12-02 10:09:16,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:09:16,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915978260]
[2024-12-02 10:09:16,255 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 10:09:16,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:09:16,322 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-12-02 10:09:16,322 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 10:09:18,192 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 10 proven. 47 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked.
[2024-12-02 10:09:18,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:09:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915978260]
[2024-12-02 10:09:18,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915978260] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 10:09:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420707456]
[2024-12-02 10:09:18,192 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 10:09:18,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:09:18,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:09:18,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:09:18,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 10:09:18,318 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-12-02 10:09:18,318 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 10:09:18,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-12-02 10:09:18,322 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:09:18,331 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 29 treesize of output 25
[2024-12-02 10:09:23,091 INFO L349 Elim1Store]: treesize reduction 163, result has 22.4 percent of original size
[2024-12-02 10:09:23,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 172 treesize of output 124
[2024-12-02 10:09:23,158 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2024-12-02 10:09:23,158 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:09:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2024-12-02 10:09:23,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420707456] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:09:23,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 10:09:23,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 10] total 27
[2024-12-02 10:09:23,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263070525]
[2024-12-02 10:09:23,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:09:23,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-12-02 10:09:23,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:09:23,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-12-02 10:09:23,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=611, Unknown=1, NotChecked=0, Total=702
[2024-12-02 10:09:23,494 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 10:09:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:09:24,154 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions.
[2024-12-02 10:09:24,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-02 10:09:24,155 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50
[2024-12-02 10:09:24,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:09:24,155 INFO L225 Difference]: With dead ends: 48
[2024-12-02 10:09:24,155 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 10:09:24,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=207, Invalid=1124, Unknown=1, NotChecked=0, Total=1332
[2024-12-02 10:09:24,157 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 32 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 10:09:24,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 95 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 10:09:24,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 10:09:24,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 10:09:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:09:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 10:09:24,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50
[2024-12-02 10:09:24,158 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:09:24,158 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 10:09:24,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 10:09:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 10:09:24,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 10:09:24,161 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 10:09:24,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 10:09:24,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:09:24,364 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1]
[2024-12-02 10:09:24,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-02 10:09:24,603 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 10:09:24,610 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d1~0!base
[2024-12-02 10:09:24,610 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d2~0!base
[2024-12-02 10:09:24,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d2~0!offset
[2024-12-02 10:09:24,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 10:09:24,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 10:09:24,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~pd2~0!base,<LOCAL,main>]]]
[2024-12-02 10:09:24,612 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!offset
[2024-12-02 10:09:24,612 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pa~0!offset
[2024-12-02 10:09:24,612 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 10:09:24,612 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 10:09:24,612 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]]
[2024-12-02 10:09:24,612 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!offset
[2024-12-02 10:09:24,612 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pa~0!offset
[2024-12-02 10:09:24,613 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#d1~0!offset
[2024-12-02 10:09:24,613 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pa~0!base
[2024-12-02 10:09:24,613 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!base
[2024-12-02 10:09:24,613 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd1~0!offset
[2024-12-02 10:09:24,613 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd2~0!offset
[2024-12-02 10:09:24,613 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~pd1~0!offset
[2024-12-02 10:09:24,613 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 10:09:24,614 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 10:09:24,614 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~pa~0!base,<LOCAL,main>]]]
[2024-12-02 10:09:24,614 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 10:09:24,614 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 10:09:24,614 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d2~0!base,GLOBAL]]]
[2024-12-02 10:09:24,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:09:24 BoogieIcfgContainer
[2024-12-02 10:09:24,615 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 10:09:24,616 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 10:09:24,616 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 10:09:24,616 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 10:09:24,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:06" (3/4) ...
[2024-12-02 10:09:24,618 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 10:09:24,621 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy
[2024-12-02 10:09:24,624 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-12-02 10:09:24,625 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-12-02 10:09:24,625 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-12-02 10:09:24,625 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 10:09:24,681 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 10:09:24,681 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 10:09:24,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 10:09:24,682 INFO L158 Benchmark]: Toolchain (without parser) took 18888.28ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 93.1MB in the beginning and 134.7MB in the end (delta: -41.6MB). Peak memory consumption was 185.0MB. Max. memory is 16.1GB.
[2024-12-02 10:09:24,682 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 73.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:09:24,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.03ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:09:24,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.58ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:09:24,683 INFO L158 Benchmark]: Boogie Preprocessor took 35.14ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:09:24,683 INFO L158 Benchmark]: RCFGBuilder took 252.66ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 65.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:09:24,684 INFO L158 Benchmark]: TraceAbstraction took 18274.73ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 64.5MB in the beginning and 139.2MB in the end (delta: -74.7MB). Peak memory consumption was 151.5MB. Max. memory is 16.1GB.
[2024-12-02 10:09:24,684 INFO L158 Benchmark]: Witness Printer took 65.49ms. Allocated memory is still 343.9MB. Free memory was 139.2MB in the beginning and 134.7MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:09:24,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 73.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 225.03ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 29.58ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 35.14ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 252.66ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 65.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 18274.73ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 64.5MB in the beginning and 139.2MB in the end (delta: -74.7MB). Peak memory consumption was 151.5MB. Max. memory is 16.1GB.
* Witness Printer took 65.49ms. Allocated memory is still 343.9MB. Free memory was 139.2MB in the beginning and 134.7MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~#d1~0!base
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~#d2~0!base
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~#d2~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~pd2~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pd2~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pa~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d1~0!base,GLOBAL]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pd2~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pa~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~#d1~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pa~0!base
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pd2~0!base
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pd1~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pd2~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~pd1~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~pa~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#d2~0!base,GLOBAL]]]
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 52]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.0s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 183 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 380 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 309 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 500 IncrementalHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 71 mSDtfsCounter, 500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 312 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=4, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 249 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 343 ConstructedInterpolants, 4 QuantifiedInterpolants, 5507 SizeOfPredicates, 31 NumberOfNonLiveVariables, 653 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 403/582 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 42]: Loop Invariant
Derived loop invariant: (0 <= ((long long) i + 10))
RESULT: Ultimate proved your program to be correct!
[2024-12-02 10:09:24,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bad146-bfe0-4b5a-a193-250bac0f3e77/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE