./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 19:06:50,724 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 19:06:50,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-08 19:06:50,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 19:06:50,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 19:06:50,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 19:06:50,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 19:06:50,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 19:06:50,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 19:06:50,857 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 19:06:50,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 19:06:50,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 19:06:50,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 19:06:50,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 19:06:50,860 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 19:06:50,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 19:06:50,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 19:06:50,861 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 19:06:50,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 19:06:50,862 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 19:06:50,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 19:06:50,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 19:06:50,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 19:06:50,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 19:06:50,867 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 19:06:50,867 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 19:06:50,868 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 19:06:50,868 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 19:06:50,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 19:06:50,868 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 19:06:50,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 19:06:50,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 19:06:50,869 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 19:06:50,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 19:06:50,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 19:06:50,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 19:06:50,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 19:06:50,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 19:06:50,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 19:06:50,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 19:06:50,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 19:06:50,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 19:06:50,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 19:06:50,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 19:06:50,875 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1
[2024-11-08 19:06:51,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 19:06:51,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 19:06:51,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 19:06:51,235 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 19:06:51,235 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 19:06:51,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c
Unable to find full path for "g++"
[2024-11-08 19:06:53,223 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 19:06:53,446 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 19:06:53,446 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c
[2024-11-08 19:06:53,457 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/data/0a6e6f826/6f18c68bb9a34fc89e28ed6c3bd6db83/FLAGfd7119741
[2024-11-08 19:06:53,806 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/data/0a6e6f826/6f18c68bb9a34fc89e28ed6c3bd6db83
[2024-11-08 19:06:53,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 19:06:53,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 19:06:53,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 19:06:53,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 19:06:53,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 19:06:53,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:06:53" (1/1) ...
[2024-11-08 19:06:53,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a267404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:53, skipping insertion in model container
[2024-11-08 19:06:53,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:06:53" (1/1) ...
[2024-11-08 19:06:53,849 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 19:06:54,049 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 19:06:54,063 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 19:06:54,087 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 19:06:54,106 INFO L204 MainTranslator]: Completed translation
[2024-11-08 19:06:54,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54 WrapperNode
[2024-11-08 19:06:54,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 19:06:54,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 19:06:54,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 19:06:54,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 19:06:54,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,148 INFO L138 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45
[2024-11-08 19:06:54,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 19:06:54,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 19:06:54,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 19:06:54,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 19:06:54,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,191 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1].
[2024-11-08 19:06:54,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 19:06:54,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 19:06:54,219 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 19:06:54,219 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 19:06:54,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (1/1) ...
[2024-11-08 19:06:54,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 19:06:54,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:06:54,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 19:06:54,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 19:06:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 19:06:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-08 19:06:54,295 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-08 19:06:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 19:06:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 19:06:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure check
[2024-11-08 19:06:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure check
[2024-11-08 19:06:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 19:06:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 19:06:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 19:06:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 19:06:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 19:06:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-08 19:06:54,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-08 19:06:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 19:06:54,400 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 19:06:54,402 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 19:06:54,690 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live.
[2024-11-08 19:06:54,690 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 19:06:54,703 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 19:06:54,704 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 19:06:54,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:54 BoogieIcfgContainer
[2024-11-08 19:06:54,704 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 19:06:54,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 19:06:54,707 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 19:06:54,713 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 19:06:54,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:06:53" (1/3) ...
[2024-11-08 19:06:54,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc0825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:06:54, skipping insertion in model container
[2024-11-08 19:06:54,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:54" (2/3) ...
[2024-11-08 19:06:54,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc0825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:06:54, skipping insertion in model container
[2024-11-08 19:06:54,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:54" (3/3) ...
[2024-11-08 19:06:54,718 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max_rec_onepoint.c
[2024-11-08 19:06:54,738 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 19:06:54,738 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2024-11-08 19:06:54,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 19:06:54,797 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;@710415eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 19:06:54,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2024-11-08 19:06:54,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 19:06:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-08 19:06:54,811 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:54,812 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:54,813 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:54,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:54,819 INFO L85 PathProgramCache]: Analyzing trace with hash 734614260, now seen corresponding path program 1 times
[2024-11-08 19:06:54,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:54,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849099565]
[2024-11-08 19:06:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:54,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:06:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:55,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:06:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:55,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:06:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 19:06:55,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:06:55,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849099565]
[2024-11-08 19:06:55,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849099565] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:06:55,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:06:55,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 19:06:55,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018409814]
[2024-11-08 19:06:55,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:06:55,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 19:06:55,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:06:55,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 19:06:55,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 19:06:55,088 INFO L87 Difference]: Start difference. First operand has 47 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 19:06:55,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:06:55,120 INFO L93 Difference]: Finished difference Result 90 states and 113 transitions.
[2024-11-08 19:06:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 19:06:55,122 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16
[2024-11-08 19:06:55,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:06:55,130 INFO L225 Difference]: With dead ends: 90
[2024-11-08 19:06:55,130 INFO L226 Difference]: Without dead ends: 35
[2024-11-08 19:06:55,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 19:06:55,140 INFO L432 NwaCegarLoop]: 52 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, 52 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:06:55,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:06:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-11-08 19:06:55,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2024-11-08 19:06:55,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 27 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 19:06:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions.
[2024-11-08 19:06:55,183 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16
[2024-11-08 19:06:55,184 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:06:55,184 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions.
[2024-11-08 19:06:55,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 19:06:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions.
[2024-11-08 19:06:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-08 19:06:55,186 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:55,186 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:55,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 19:06:55,187 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:55,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:55,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1050038000, now seen corresponding path program 1 times
[2024-11-08 19:06:55,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:55,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941827126]
[2024-11-08 19:06:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:06:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:55,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:06:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:55,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:06:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 19:06:55,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:06:55,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941827126]
[2024-11-08 19:06:55,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941827126] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:06:55,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796241003]
[2024-11-08 19:06:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:55,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:06:55,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:06:55,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 19:06:55,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 19:06:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:55,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 19:06:55,631 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:06:55,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 19:06:55,766 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 19:06:55,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796241003] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:06:55,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 19:06:55,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6
[2024-11-08 19:06:55,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948305889]
[2024-11-08 19:06:55,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:06:55,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:06:55,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:06:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:06:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:06:55,771 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 6 states, 4 states have (on average 3.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 19:06:55,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:06:55,872 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions.
[2024-11-08 19:06:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 19:06:55,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16
[2024-11-08 19:06:55,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:06:55,877 INFO L225 Difference]: With dead ends: 35
[2024-11-08 19:06:55,877 INFO L226 Difference]: Without dead ends: 33
[2024-11-08 19:06:55,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 19:06:55,879 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:06:55,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 131 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:06:55,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2024-11-08 19:06:55,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2024-11-08 19:06:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 25 states have internal predecessors, (26), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 19:06:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions.
[2024-11-08 19:06:55,892 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 16
[2024-11-08 19:06:55,893 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:06:55,893 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions.
[2024-11-08 19:06:55,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 19:06:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions.
[2024-11-08 19:06:55,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2024-11-08 19:06:55,895 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:55,895 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:55,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 19:06:56,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:06:56,101 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:56,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:56,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1984831185, now seen corresponding path program 1 times
[2024-11-08 19:06:56,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:56,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783466594]
[2024-11-08 19:06:56,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:56,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:06:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:06:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:06:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 19:06:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 19:06:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 19:06:56,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:06:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783466594]
[2024-11-08 19:06:56,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783466594] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:06:56,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:06:56,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:06:56,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050168061]
[2024-11-08 19:06:56,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:06:56,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:06:56,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:06:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:06:56,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:06:56,338 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 19:06:56,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:06:56,413 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions.
[2024-11-08 19:06:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 19:06:56,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33
[2024-11-08 19:06:56,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:06:56,415 INFO L225 Difference]: With dead ends: 49
[2024-11-08 19:06:56,415 INFO L226 Difference]: Without dead ends: 47
[2024-11-08 19:06:56,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:06:56,416 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 17 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:06:56,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 120 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:06:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-08 19:06:56,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44.
[2024-11-08 19:06:56,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 33 states have internal predecessors, (37), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 19:06:56,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions.
[2024-11-08 19:06:56,433 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 33
[2024-11-08 19:06:56,433 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:06:56,434 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions.
[2024-11-08 19:06:56,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 19:06:56,434 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions.
[2024-11-08 19:06:56,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2024-11-08 19:06:56,435 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:56,435 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:56,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 19:06:56,437 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:56,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:56,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1984830993, now seen corresponding path program 1 times
[2024-11-08 19:06:56,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:56,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499653469]
[2024-11-08 19:06:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:56,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:06:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:06:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:06:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 19:06:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 19:06:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 19:06:56,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:06:56,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499653469]
[2024-11-08 19:06:56,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499653469] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:06:56,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:06:56,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:06:56,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543382803]
[2024-11-08 19:06:56,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:06:56,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 19:06:56,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:06:56,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 19:06:56,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:06:56,662 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 19:06:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:06:56,783 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions.
[2024-11-08 19:06:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 19:06:56,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33
[2024-11-08 19:06:56,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:06:56,785 INFO L225 Difference]: With dead ends: 47
[2024-11-08 19:06:56,785 INFO L226 Difference]: Without dead ends: 46
[2024-11-08 19:06:56,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2024-11-08 19:06:56,786 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 20 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:06:56,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 146 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:06:56,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-11-08 19:06:56,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44.
[2024-11-08 19:06:56,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 33 states have internal predecessors, (36), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 19:06:56,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions.
[2024-11-08 19:06:56,796 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33
[2024-11-08 19:06:56,796 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:06:56,796 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions.
[2024-11-08 19:06:56,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 19:06:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions.
[2024-11-08 19:06:56,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 19:06:56,800 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:56,800 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:56,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 19:06:56,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:56,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:56,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1400218561, now seen corresponding path program 1 times
[2024-11-08 19:06:56,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:56,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109293042]
[2024-11-08 19:06:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:56,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:06:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:06:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:06:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 19:06:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 19:06:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:56,962 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 19:06:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:06:56,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109293042]
[2024-11-08 19:06:56,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109293042] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:06:56,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:06:56,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:06:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947483061]
[2024-11-08 19:06:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:06:56,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:06:56,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:06:56,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:06:56,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:06:56,969 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 19:06:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:06:57,043 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions.
[2024-11-08 19:06:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 19:06:57,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34
[2024-11-08 19:06:57,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:06:57,046 INFO L225 Difference]: With dead ends: 44
[2024-11-08 19:06:57,046 INFO L226 Difference]: Without dead ends: 43
[2024-11-08 19:06:57,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 19:06:57,047 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:06:57,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 101 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:06:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-11-08 19:06:57,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2024-11-08 19:06:57,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 32 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 19:06:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions.
[2024-11-08 19:06:57,061 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 34
[2024-11-08 19:06:57,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:06:57,064 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions.
[2024-11-08 19:06:57,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 19:06:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions.
[2024-11-08 19:06:57,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-08 19:06:57,065 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:57,065 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:57,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 19:06:57,066 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:57,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:57,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1958074394, now seen corresponding path program 1 times
[2024-11-08 19:06:57,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:57,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338674916]
[2024-11-08 19:06:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:57,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:06:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:57,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:06:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:57,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:06:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:57,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 19:06:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:57,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 19:06:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:57,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-11-08 19:06:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:57,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2024-11-08 19:06:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:06:57,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:06:57,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338674916]
[2024-11-08 19:06:57,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338674916] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:06:57,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921125741]
[2024-11-08 19:06:57,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:57,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:06:57,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:06:57,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 19:06:57,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 19:06:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:57,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 19:06:57,352 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:06:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:06:57,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 19:06:57,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921125741] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:06:57,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 19:06:57,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10
[2024-11-08 19:06:57,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89532009]
[2024-11-08 19:06:57,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:06:57,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 19:06:57,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:06:57,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 19:06:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-11-08 19:06:57,448 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-08 19:06:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:06:57,590 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions.
[2024-11-08 19:06:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 19:06:57,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50
[2024-11-08 19:06:57,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:06:57,593 INFO L225 Difference]: With dead ends: 44
[2024-11-08 19:06:57,593 INFO L226 Difference]: Without dead ends: 43
[2024-11-08 19:06:57,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240
[2024-11-08 19:06:57,595 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 28 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:06:57,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 193 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:06:57,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-11-08 19:06:57,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42.
[2024-11-08 19:06:57,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 19:06:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions.
[2024-11-08 19:06:57,608 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 50
[2024-11-08 19:06:57,613 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:06:57,613 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions.
[2024-11-08 19:06:57,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-08 19:06:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions.
[2024-11-08 19:06:57,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-08 19:06:57,614 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:57,614 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:57,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 19:06:57,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:06:57,815 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:57,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1958074202, now seen corresponding path program 1 times
[2024-11-08 19:06:57,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:57,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825950083]
[2024-11-08 19:06:57,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:57,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:06:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:58,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:06:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:58,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:06:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:58,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 19:06:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:58,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 19:06:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:58,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-11-08 19:06:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:58,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2024-11-08 19:06:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:06:58,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:06:58,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825950083]
[2024-11-08 19:06:58,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825950083] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:06:58,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826726769]
[2024-11-08 19:06:58,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:58,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:06:58,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:06:58,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 19:06:58,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 19:06:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:58,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-08 19:06:58,188 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:06:58,316 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:06:58,316 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 19:06:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:06:58,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826726769] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 19:06:58,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 19:06:58,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21
[2024-11-08 19:06:58,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415930382]
[2024-11-08 19:06:58,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 19:06:58,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-11-08 19:06:58,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:06:58,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-11-08 19:06:58,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462
[2024-11-08 19:06:58,510 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 16 states have internal predecessors, (46), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14)
[2024-11-08 19:06:58,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:06:58,831 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions.
[2024-11-08 19:06:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-08 19:06:58,832 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 16 states have internal predecessors, (46), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 50
[2024-11-08 19:06:58,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:06:58,833 INFO L225 Difference]: With dead ends: 44
[2024-11-08 19:06:58,833 INFO L226 Difference]: Without dead ends: 43
[2024-11-08 19:06:58,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=900, Unknown=0, NotChecked=0, Total=1122
[2024-11-08 19:06:58,834 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 78 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:06:58,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 261 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:06:58,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-11-08 19:06:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41.
[2024-11-08 19:06:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 19:06:58,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions.
[2024-11-08 19:06:58,842 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 50
[2024-11-08 19:06:58,842 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:06:58,842 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions.
[2024-11-08 19:06:58,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 16 states have internal predecessors, (46), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14)
[2024-11-08 19:06:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions.
[2024-11-08 19:06:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-08 19:06:58,844 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:58,844 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:58,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 19:06:59,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:06:59,045 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:59,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:59,045 INFO L85 PathProgramCache]: Analyzing trace with hash -570763998, now seen corresponding path program 1 times
[2024-11-08 19:06:59,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:59,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295692538]
[2024-11-08 19:06:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:59,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:06:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:59,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:06:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:59,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:06:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:59,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 19:06:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:59,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 19:06:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:59,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-11-08 19:06:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:59,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2024-11-08 19:06:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:06:59,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:06:59,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295692538]
[2024-11-08 19:06:59,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295692538] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:06:59,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659463689]
[2024-11-08 19:06:59,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:59,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:06:59,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:06:59,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 19:06:59,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 19:06:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:06:59,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 19:06:59,338 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:06:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:06:59,398 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 19:06:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 19:06:59,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659463689] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 19:06:59,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 19:06:59,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16
[2024-11-08 19:06:59,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90239356]
[2024-11-08 19:06:59,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 19:06:59,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-08 19:06:59,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:06:59,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-08 19:06:59,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272
[2024-11-08 19:06:59,527 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 17 states, 16 states have (on average 2.6875) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12)
[2024-11-08 19:06:59,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:06:59,773 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions.
[2024-11-08 19:06:59,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 19:06:59,774 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 51
[2024-11-08 19:06:59,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:06:59,775 INFO L225 Difference]: With dead ends: 79
[2024-11-08 19:06:59,775 INFO L226 Difference]: Without dead ends: 78
[2024-11-08 19:06:59,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756
[2024-11-08 19:06:59,776 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 75 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:06:59,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 240 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:06:59,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2024-11-08 19:06:59,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74.
[2024-11-08 19:06:59,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 54 states have internal predecessors, (59), 18 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-08 19:06:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions.
[2024-11-08 19:06:59,791 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 51
[2024-11-08 19:06:59,792 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:06:59,792 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions.
[2024-11-08 19:06:59,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12)
[2024-11-08 19:06:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions.
[2024-11-08 19:06:59,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-08 19:06:59,794 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:06:59,794 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:06:59,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 19:06:59,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:06:59,998 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:06:59,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:06:59,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1714613049, now seen corresponding path program 2 times
[2024-11-08 19:06:59,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:06:59,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529277532]
[2024-11-08 19:06:59,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:06:59,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:07:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:07:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:07:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 19:07:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 19:07:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-11-08 19:07:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2024-11-08 19:07:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 19:07:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59
[2024-11-08 19:07:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-08 19:07:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-08 19:07:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88
[2024-11-08 19:07:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2024-11-08 19:07:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-08 19:07:00,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:07:00,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529277532]
[2024-11-08 19:07:00,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529277532] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:07:00,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402791370]
[2024-11-08 19:07:00,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 19:07:00,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:07:00,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:07:00,503 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 19:07:00,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 19:07:00,627 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 19:07:00,627 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 19:07:00,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 19:07:00,634 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:07:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-08 19:07:00,764 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 19:07:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-08 19:07:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402791370] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 19:07:01,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 19:07:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34
[2024-11-08 19:07:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463581189]
[2024-11-08 19:07:01,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 19:07:01,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2024-11-08 19:07:01,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:07:01,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2024-11-08 19:07:01,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190
[2024-11-08 19:07:01,156 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 24 states have internal predecessors, (79), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24)
[2024-11-08 19:07:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:07:01,938 INFO L93 Difference]: Finished difference Result 151 states and 189 transitions.
[2024-11-08 19:07:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states.
[2024-11-08 19:07:01,939 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 24 states have internal predecessors, (79), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) Word has length 102
[2024-11-08 19:07:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:07:01,941 INFO L225 Difference]: With dead ends: 151
[2024-11-08 19:07:01,941 INFO L226 Difference]: Without dead ends: 150
[2024-11-08 19:07:01,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=830, Invalid=3202, Unknown=0, NotChecked=0, Total=4032
[2024-11-08 19:07:01,943 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 204 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:07:01,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 385 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:07:01,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2024-11-08 19:07:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 140.
[2024-11-08 19:07:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 101 states have (on average 1.118811881188119) internal successors, (113), 102 states have internal predecessors, (113), 36 states have call successors, (36), 13 states have call predecessors, (36), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-08 19:07:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 173 transitions.
[2024-11-08 19:07:01,964 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 173 transitions. Word has length 102
[2024-11-08 19:07:01,965 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:07:01,965 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 173 transitions.
[2024-11-08 19:07:01,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 24 states have internal predecessors, (79), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24)
[2024-11-08 19:07:01,965 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 173 transitions.
[2024-11-08 19:07:01,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205
[2024-11-08 19:07:01,968 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 19:07:01,969 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:07:01,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 19:07:02,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:07:02,173 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2024-11-08 19:07:02,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:07:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash 414222489, now seen corresponding path program 3 times
[2024-11-08 19:07:02,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:07:02,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099917506]
[2024-11-08 19:07:02,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:07:02,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:07:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 19:07:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 19:07:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 19:07:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 19:07:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-11-08 19:07:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2024-11-08 19:07:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 19:07:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59
[2024-11-08 19:07:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-08 19:07:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-08 19:07:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88
[2024-11-08 19:07:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2024-11-08 19:07:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2024-11-08 19:07:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110
[2024-11-08 19:07:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2024-11-08 19:07:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2024-11-08 19:07:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2024-11-08 19:07:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2024-11-08 19:07:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2024-11-08 19:07:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:03,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161
[2024-11-08 19:07:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:04,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2024-11-08 19:07:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:04,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178
[2024-11-08 19:07:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:04,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190
[2024-11-08 19:07:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:04,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195
[2024-11-08 19:07:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:07:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 0 proven. 485 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked.
[2024-11-08 19:07:04,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:07:04,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099917506]
[2024-11-08 19:07:04,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099917506] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:07:04,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786796686]
[2024-11-08 19:07:04,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 19:07:04,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:07:04,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:07:04,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 19:07:04,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 19:07:04,271 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s)
[2024-11-08 19:07:04,271 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 19:07:04,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-08 19:07:04,285 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:07:04,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked.
[2024-11-08 19:07:04,638 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 19:07:05,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked.
[2024-11-08 19:07:05,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786796686] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 19:07:05,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 19:07:05,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 6, 6] total 44
[2024-11-08 19:07:05,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792731387]
[2024-11-08 19:07:05,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 19:07:05,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2024-11-08 19:07:05,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:07:05,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2024-11-08 19:07:05,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=1679, Unknown=0, NotChecked=0, Total=1980
[2024-11-08 19:07:05,098 INFO L87 Difference]: Start difference. First operand 140 states and 173 transitions. Second operand has 45 states, 44 states have (on average 2.5681818181818183) internal successors, (113), 32 states have internal predecessors, (113), 18 states have call successors, (51), 14 states have call predecessors, (51), 1 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36)
[2024-11-08 19:07:10,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:07:10,150 INFO L93 Difference]: Finished difference Result 307 states and 382 transitions.
[2024-11-08 19:07:10,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states.
[2024-11-08 19:07:10,151 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.5681818181818183) internal successors, (113), 32 states have internal predecessors, (113), 18 states have call successors, (51), 14 states have call predecessors, (51), 1 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) Word has length 204
[2024-11-08 19:07:10,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:07:10,153 INFO L225 Difference]: With dead ends: 307
[2024-11-08 19:07:10,153 INFO L226 Difference]: Without dead ends: 0
[2024-11-08 19:07:10,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9950 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=5785, Invalid=25015, Unknown=0, NotChecked=0, Total=30800
[2024-11-08 19:07:10,172 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 978 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 19:07:10,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 322 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 19:07:10,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 19:07:10,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 19:07:10,173 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)
[2024-11-08 19:07:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 19:07:10,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204
[2024-11-08 19:07:10,173 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:07:10,174 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 19:07:10,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.5681818181818183) internal successors, (113), 32 states have internal predecessors, (113), 18 states have call successors, (51), 14 states have call predecessors, (51), 1 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36)
[2024-11-08 19:07:10,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 19:07:10,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 19:07:10,178 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining)
[2024-11-08 19:07:10,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining)
[2024-11-08 19:07:10,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining)
[2024-11-08 19:07:10,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining)
[2024-11-08 19:07:10,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining)
[2024-11-08 19:07:10,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining)
[2024-11-08 19:07:10,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-08 19:07:10,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:07:10,386 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:07:10,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-08 19:07:15,335 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 19:07:15,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:07:15 BoogieIcfgContainer
[2024-11-08 19:07:15,363 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 19:07:15,363 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 19:07:15,364 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 19:07:15,364 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 19:07:15,364 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:54" (3/4) ...
[2024-11-08 19:07:15,367 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-08 19:07:15,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2024-11-08 19:07:15,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check
[2024-11-08 19:07:15,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-11-08 19:07:15,376 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges
[2024-11-08 19:07:15,376 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-08 19:07:15,376 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-08 19:07:15,376 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 19:07:15,466 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 19:07:15,466 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/witness.yml
[2024-11-08 19:07:15,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 19:07:15,467 INFO L158 Benchmark]: Toolchain (without parser) took 21656.84ms. Allocated memory was 151.0MB in the beginning and 318.8MB in the end (delta: 167.8MB). Free memory was 110.1MB in the beginning and 258.8MB in the end (delta: -148.7MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB.
[2024-11-08 19:07:15,467 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 19:07:15,468 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.94ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 97.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 19:07:15,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.10ms. Allocated memory is still 151.0MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 19:07:15,468 INFO L158 Benchmark]: Boogie Preprocessor took 68.28ms. Allocated memory is still 151.0MB. Free memory was 95.6MB in the beginning and 93.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 19:07:15,468 INFO L158 Benchmark]: RCFGBuilder took 486.34ms. Allocated memory is still 151.0MB. Free memory was 93.6MB in the beginning and 117.6MB in the end (delta: -24.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB.
[2024-11-08 19:07:15,469 INFO L158 Benchmark]: TraceAbstraction took 20655.86ms. Allocated memory was 151.0MB in the beginning and 318.8MB in the end (delta: 167.8MB). Free memory was 117.0MB in the beginning and 264.0MB in the end (delta: -147.0MB). Peak memory consumption was 190.4MB. Max. memory is 16.1GB.
[2024-11-08 19:07:15,469 INFO L158 Benchmark]: Witness Printer took 103.14ms. Allocated memory is still 318.8MB. Free memory was 264.0MB in the beginning and 258.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-11-08 19:07:15,473 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 109.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 295.94ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 97.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 40.10ms. Allocated memory is still 151.0MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 68.28ms. Allocated memory is still 151.0MB. Free memory was 95.6MB in the beginning and 93.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 486.34ms. Allocated memory is still 151.0MB. Free memory was 93.6MB in the beginning and 117.6MB in the end (delta: -24.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 20655.86ms. Allocated memory was 151.0MB in the beginning and 318.8MB in the end (delta: 167.8MB). Free memory was 117.0MB in the beginning and 264.0MB in the end (delta: -147.0MB). Peak memory consumption was 190.4MB. Max. memory is 16.1GB.
* Witness Printer took 103.14ms. Allocated memory is still 318.8MB. Free memory was 264.0MB in the beginning and 258.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 47]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 47]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 26]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 26]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 27]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 27]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 15.6s, OverallIterations: 10, TraceHistogramMax: 13, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1424 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1423 mSDsluCounter, 1951 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1642 mSDsCounter, 292 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1058 IncrementalHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 292 mSolverCounterUnsat, 309 mSDtfsCounter, 1058 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1317 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 334 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11391 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=9, InterpolantAutomatonStates: 244, 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, 10 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 1062 NumberOfCodeBlocks, 1062 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1449 ConstructedInterpolants, 0 QuantifiedInterpolants, 2763 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1745 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 3098/4009 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
- AllSpecificationsHoldResult: All specifications hold
6 specifications checked. All of them hold
- ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not
Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0)
- ProcedureContractResult [Line: 16]: Procedure Contract for check
Derived contract for procedure check. Requires: ((((1 <= y) && (1 <= x)) && (y <= 2147483646)) || ((y <= 2147483646) && (x == 0))) Ensures: ((((1 <= y) && (1 <= x)) && (y <= 2147483646)) || ((y <= 2147483646) && (x == 0)))
RESULT: Ultimate proved your program to be correct!
[2024-11-08 19:07:15,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6809c57b-b438-43e4-ac5c-4ae6b15ce618/bin/uautomizer-verify-jihMAELWvX/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