./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound5.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_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/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_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/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_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/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 a27e222af80a0e7079fd1845c98cd202d89805160fe537f012a3762f02f5a114
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:57:31,726 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:57:31,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 12:57:31,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:57:31,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:57:31,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:57:31,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:57:31,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:57:31,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:57:31,824 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 12:57:31,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:57:31,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:57:31,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:57:31,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 12:57:31,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 12:57:31,825 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 12:57:31,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 12:57:31,826 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:57:31,826 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 12:57:31,826 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:57:31,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:57:31,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:57:31,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:57:31,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:57:31,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:57:31,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:57:31,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:57:31,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:57:31,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:57:31,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:57:31,828 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_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/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 -> a27e222af80a0e7079fd1845c98cd202d89805160fe537f012a3762f02f5a114
[2024-12-02 12:57:32,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:57:32,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:57:32,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:57:32,129 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 12:57:32,129 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 12:57:32,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound5.c
[2024-12-02 12:57:34,906 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/data/5eae30470/45648aaab0eb4bafb2af15cfad764600/FLAGb9165f315
[2024-12-02 12:57:35,100 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 12:57:35,101 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound5.c
[2024-12-02 12:57:35,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/data/5eae30470/45648aaab0eb4bafb2af15cfad764600/FLAGb9165f315
[2024-12-02 12:57:35,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/data/5eae30470/45648aaab0eb4bafb2af15cfad764600
[2024-12-02 12:57:35,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:57:35,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:57:35,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:57:35,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:57:35,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:57:35,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d0e229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35, skipping insertion in model container
[2024-12-02 12:57:35,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,147 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:57:35,273 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_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound5.c[524,537]
[2024-12-02 12:57:35,295 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:57:35,303 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 12:57:35,313 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_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound5.c[524,537]
[2024-12-02 12:57:35,323 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:57:35,338 INFO L204 MainTranslator]: Completed translation
[2024-12-02 12:57:35,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35 WrapperNode
[2024-12-02 12:57:35,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:57:35,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:57:35,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:57:35,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:57:35,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,372 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53
[2024-12-02 12:57:35,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:57:35,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:57:35,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:57:35,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:57:35,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,383 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,396 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 12:57:35,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,399 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:57:35,408 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:57:35,408 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:57:35,408 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:57:35,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (1/1) ...
[2024-12-02 12:57:35,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:57:35,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:57:35,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:57:35,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:57:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 12:57:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-02 12:57:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-02 12:57:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 12:57:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:57:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:57:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-02 12:57:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-02 12:57:35,518 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 12:57:35,520 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:57:35,683 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-12-02 12:57:35,683 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 12:57:35,691 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:57:35,692 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-12-02 12:57:35,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:57:35 BoogieIcfgContainer
[2024-12-02 12:57:35,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:57:35,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:57:35,695 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:57:35,700 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:57:35,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:57:35" (1/3) ...
[2024-12-02 12:57:35,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efa4e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:57:35, skipping insertion in model container
[2024-12-02 12:57:35,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:35" (2/3) ...
[2024-12-02 12:57:35,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efa4e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:57:35, skipping insertion in model container
[2024-12-02 12:57:35,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:57:35" (3/3) ...
[2024-12-02 12:57:35,703 INFO L128 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound5.c
[2024-12-02 12:57:35,721 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:57:35,723 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_valuebound5.c that has 3 procedures, 28 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 12:57:35,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:57:35,792 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;@13f1a970, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:57:35,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 12:57:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-12-02 12:57:35,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-12-02 12:57:35,804 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:57:35,805 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:57:35,805 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:57:35,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:57:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1316129409, now seen corresponding path program 1 times
[2024-12-02 12:57:35,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:57:35,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32084555]
[2024-12-02 12:57:35,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:35,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:57:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:57:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-12-02 12:57:35,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:57:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32084555]
[2024-12-02 12:57:35,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32084555] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:57:35,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019681766]
[2024-12-02 12:57:35,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:35,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:35,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:57:35,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:57:35,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 12:57:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:57:36,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-02 12:57:36,035 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:57:36,047 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-12-02 12:57:36,048 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:57:36,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019681766] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:57:36,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 12:57:36,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-12-02 12:57:36,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333944050]
[2024-12-02 12:57:36,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:57:36,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 12:57:36,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:57:36,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 12:57:36,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 12:57:36,079 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:57:36,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:57:36,099 INFO L93 Difference]: Finished difference Result 53 states and 80 transitions.
[2024-12-02 12:57:36,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 12:57:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23
[2024-12-02 12:57:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:57:36,110 INFO L225 Difference]: With dead ends: 53
[2024-12-02 12:57:36,110 INFO L226 Difference]: Without dead ends: 24
[2024-12-02 12:57:36,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 12:57:36,116 INFO L435 NwaCegarLoop]: 35 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, 35 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 12:57:36,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:57:36,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-12-02 12:57:36,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2024-12-02 12:57:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-12-02 12:57:36,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions.
[2024-12-02 12:57:36,153 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 23
[2024-12-02 12:57:36,154 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:57:36,154 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions.
[2024-12-02 12:57:36,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:57:36,154 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions.
[2024-12-02 12:57:36,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-12-02 12:57:36,156 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:57:36,156 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:57:36,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 12:57:36,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:36,357 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:57:36,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:57:36,357 INFO L85 PathProgramCache]: Analyzing trace with hash -106258495, now seen corresponding path program 1 times
[2024-12-02 12:57:36,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:57:36,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135770552]
[2024-12-02 12:57:36,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:36,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:57:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-12-02 12:57:36,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275126990]
[2024-12-02 12:57:36,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:36,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:36,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:57:36,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:57:36,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 12:57:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:57:36,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 12:57:36,448 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:57:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:57:36,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:57:36,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:57:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135770552]
[2024-12-02 12:57:36,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-12-02 12:57:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275126990]
[2024-12-02 12:57:36,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275126990] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:57:36,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:57:36,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 12:57:36,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441044307]
[2024-12-02 12:57:36,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:57:36,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:57:36,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:57:36,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:57:36,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:57:36,562 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-12-02 12:57:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:57:36,676 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions.
[2024-12-02 12:57:36,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:57:36,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23
[2024-12-02 12:57:36,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:57:36,678 INFO L225 Difference]: With dead ends: 37
[2024-12-02 12:57:36,678 INFO L226 Difference]: Without dead ends: 35
[2024-12-02 12:57:36,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:57:36,679 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:57:36,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:57:36,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-12-02 12:57:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29.
[2024-12-02 12:57:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6)
[2024-12-02 12:57:36,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions.
[2024-12-02 12:57:36,690 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 23
[2024-12-02 12:57:36,690 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:57:36,690 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions.
[2024-12-02 12:57:36,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-12-02 12:57:36,691 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions.
[2024-12-02 12:57:36,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-12-02 12:57:36,692 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:57:36,692 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:57:36,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 12:57:36,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:36,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:57:36,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:57:36,893 INFO L85 PathProgramCache]: Analyzing trace with hash 3084474, now seen corresponding path program 1 times
[2024-12-02 12:57:36,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:57:36,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630273706]
[2024-12-02 12:57:36,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:36,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:57:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-12-02 12:57:36,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174996849]
[2024-12-02 12:57:36,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:36,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:36,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:57:36,926 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:57:36,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 12:57:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:57:36,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-12-02 12:57:36,973 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:57:37,124 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:57:37,125 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:57:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:57:37,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:57:37,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630273706]
[2024-12-02 12:57:37,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-12-02 12:57:37,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174996849]
[2024-12-02 12:57:37,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174996849] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:57:37,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 12:57:37,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10
[2024-12-02 12:57:37,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345425335]
[2024-12-02 12:57:37,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:57:37,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 12:57:37,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:57:37,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 12:57:37,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-12-02 12:57:37,359 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5)
[2024-12-02 12:57:41,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-12-02 12:57:41,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:57:41,544 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions.
[2024-12-02 12:57:41,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 12:57:41,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 29
[2024-12-02 12:57:41,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:57:41,547 INFO L225 Difference]: With dead ends: 36
[2024-12-02 12:57:41,547 INFO L226 Difference]: Without dead ends: 34
[2024-12-02 12:57:41,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110
[2024-12-02 12:57:41,548 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:57:41,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 104 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time]
[2024-12-02 12:57:41,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2024-12-02 12:57:41,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33.
[2024-12-02 12:57:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6)
[2024-12-02 12:57:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions.
[2024-12-02 12:57:41,557 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 29
[2024-12-02 12:57:41,557 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:57:41,557 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions.
[2024-12-02 12:57:41,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5)
[2024-12-02 12:57:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions.
[2024-12-02 12:57:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-12-02 12:57:41,558 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:57:41,558 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:57:41,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 12:57:41,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:41,759 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:57:41,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:57:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash 107204508, now seen corresponding path program 1 times
[2024-12-02 12:57:41,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:57:41,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605882559]
[2024-12-02 12:57:41,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:41,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:57:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-12-02 12:57:41,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345809218]
[2024-12-02 12:57:41,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:41,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:41,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:57:41,801 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:57:41,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 12:57:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:57:41,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 34 conjuncts are in the unsatisfiable core
[2024-12-02 12:57:41,856 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:57:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 12:57:42,336 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:57:45,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:57:45,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605882559]
[2024-12-02 12:57:45,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-12-02 12:57:45,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345809218]
[2024-12-02 12:57:45,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345809218] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:57:45,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-12-02 12:57:45,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2024-12-02 12:57:45,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395941300]
[2024-12-02 12:57:45,662 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:57:45,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 12:57:45,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:57:45,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 12:57:45,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306
[2024-12-02 12:57:45,663 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 10 states have internal predecessors, (18), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 12:57:45,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:57:45,917 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions.
[2024-12-02 12:57:45,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 12:57:45,918 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 10 states have internal predecessors, (18), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30
[2024-12-02 12:57:45,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:57:45,919 INFO L225 Difference]: With dead ends: 52
[2024-12-02 12:57:45,919 INFO L226 Difference]: Without dead ends: 50
[2024-12-02 12:57:45,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342
[2024-12-02 12:57:45,920 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 48 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:57:45,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 89 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:57:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-12-02 12:57:45,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 40.
[2024-12-02 12:57:45,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 28 states have internal predecessors, (33), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7)
[2024-12-02 12:57:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions.
[2024-12-02 12:57:45,928 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30
[2024-12-02 12:57:45,928 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:57:45,928 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions.
[2024-12-02 12:57:45,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 10 states have internal predecessors, (18), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 12:57:45,929 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions.
[2024-12-02 12:57:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-12-02 12:57:45,930 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:57:45,930 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:57:45,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 12:57:46,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:46,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:57:46,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:57:46,131 INFO L85 PathProgramCache]: Analyzing trace with hash -953577087, now seen corresponding path program 1 times
[2024-12-02 12:57:46,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:57:46,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798678617]
[2024-12-02 12:57:46,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:46,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:57:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-12-02 12:57:46,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085945925]
[2024-12-02 12:57:46,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:46,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:46,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:57:46,163 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:57:46,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 12:57:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:57:46,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-12-02 12:57:46,201 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:57:46,296 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:57:46,297 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:57:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:57:46,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:57:46,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798678617]
[2024-12-02 12:57:46,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-12-02 12:57:46,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085945925]
[2024-12-02 12:57:46,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085945925] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:57:46,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 12:57:46,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10
[2024-12-02 12:57:46,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529092708]
[2024-12-02 12:57:46,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:57:46,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 12:57:46,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:57:46,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 12:57:46,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-12-02 12:57:46,372 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5)
[2024-12-02 12:57:46,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:57:46,588 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions.
[2024-12-02 12:57:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 12:57:46,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31
[2024-12-02 12:57:46,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:57:46,590 INFO L225 Difference]: With dead ends: 57
[2024-12-02 12:57:46,591 INFO L226 Difference]: Without dead ends: 53
[2024-12-02 12:57:46,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2024-12-02 12:57:46,592 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:57:46,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 112 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:57:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-12-02 12:57:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 30.
[2024-12-02 12:57:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-12-02 12:57:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions.
[2024-12-02 12:57:46,601 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 31
[2024-12-02 12:57:46,602 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:57:46,602 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions.
[2024-12-02 12:57:46,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5)
[2024-12-02 12:57:46,602 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions.
[2024-12-02 12:57:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-12-02 12:57:46,603 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:57:46,603 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:57:46,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 12:57:46,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:46,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:57:46,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:57:46,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1701575582, now seen corresponding path program 1 times
[2024-12-02 12:57:46,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:57:46,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142907268]
[2024-12-02 12:57:46,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:46,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:57:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-12-02 12:57:46,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769360857]
[2024-12-02 12:57:46,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:57:46,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:46,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:57:46,827 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:57:46,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 12:57:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:57:46,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 12:57:46,864 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:57:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-12-02 12:57:46,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:57:46,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:57:46,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142907268]
[2024-12-02 12:57:46,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-12-02 12:57:46,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769360857]
[2024-12-02 12:57:46,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769360857] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:57:46,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:57:46,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 12:57:46,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765334081]
[2024-12-02 12:57:46,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:57:46,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:57:46,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:57:46,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:57:46,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:57:46,902 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-12-02 12:57:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:57:46,946 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions.
[2024-12-02 12:57:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:57:46,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34
[2024-12-02 12:57:46,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:57:46,947 INFO L225 Difference]: With dead ends: 30
[2024-12-02 12:57:46,947 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 12:57:46,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:57:46,948 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 12:57:46,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 99 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:57:46,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 12:57:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 12:57:46,949 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 12:57:46,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 12:57:46,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34
[2024-12-02 12:57:46,950 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:57:46,950 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 12:57:46,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-12-02 12:57:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 12:57:46,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 12:57:46,953 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 12:57:46,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 12:57:47,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:57:47,156 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2024-12-02 12:57:47,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-02 12:57:47,441 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 12:57:47,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:57:47 BoogieIcfgContainer
[2024-12-02 12:57:47,456 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 12:57:47,456 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 12:57:47,456 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 12:57:47,457 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 12:57:47,457 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:57:35" (3/4) ...
[2024-12-02 12:57:47,459 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 12:57:47,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2024-12-02 12:57:47,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-12-02 12:57:47,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2024-12-02 12:57:47,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-02 12:57:47,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-12-02 12:57:47,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 12:57:47,543 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 12:57:47,543 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 12:57:47,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 12:57:47,544 INFO L158 Benchmark]: Toolchain (without parser) took 12416.67ms. Allocated memory is still 134.2MB. Free memory was 106.7MB in the beginning and 99.4MB in the end (delta: 7.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB.
[2024-12-02 12:57:47,545 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:57:47,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.38ms. Allocated memory is still 134.2MB. Free memory was 106.5MB in the beginning and 95.1MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 12:57:47,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.23ms. Allocated memory is still 134.2MB. Free memory was 95.1MB in the beginning and 93.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:57:47,546 INFO L158 Benchmark]: Boogie Preprocessor took 34.10ms. Allocated memory is still 134.2MB. Free memory was 93.9MB in the beginning and 92.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 12:57:47,546 INFO L158 Benchmark]: RCFGBuilder took 283.83ms. Allocated memory is still 134.2MB. Free memory was 92.5MB in the beginning and 81.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 12:57:47,546 INFO L158 Benchmark]: TraceAbstraction took 11761.08ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 104.5MB in the end (delta: -24.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB.
[2024-12-02 12:57:47,547 INFO L158 Benchmark]: Witness Printer took 86.96ms. Allocated memory is still 134.2MB. Free memory was 104.5MB in the beginning and 99.4MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:57:47,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 210.38ms. Allocated memory is still 134.2MB. Free memory was 106.5MB in the beginning and 95.1MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 33.23ms. Allocated memory is still 134.2MB. Free memory was 95.1MB in the beginning and 93.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 34.10ms. Allocated memory is still 134.2MB. Free memory was 93.9MB in the beginning and 92.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 283.83ms. Allocated memory is still 134.2MB. Free memory was 92.5MB in the beginning and 81.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 11761.08ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 104.5MB in the end (delta: -24.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB.
* Witness Printer took 86.96ms. Allocated memory is still 134.2MB. Free memory was 104.5MB in the beginning and 99.4MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 14]: 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 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.4s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 514 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 373 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 503 IncrementalHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 141 mSDtfsCounter, 503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 193 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=4, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 244 ConstructedInterpolants, 1 QuantifiedInterpolants, 617 SizeOfPredicates, 14 NumberOfNonLiveVariables, 484 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 115/129 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: 34]: Loop Invariant
Derived loop invariant: ((((x <= 5) && (0 <= x)) && (1 <= y)) && ((q + (((__int128) a * b) * p)) == ((long long) x * y)))
RESULT: Ultimate proved your program to be correct!
[2024-12-02 12:57:47,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b8f9d4-8908-4c2e-b6fe-efb2ec808866/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