./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 527bcce2
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0a16588b251f5de7b3febde43795c7086835cc989637b8bd82aa8d6af355c6b
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 22:11:40,908 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-21 22:11:41,042 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-21 22:11:41,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 22:11:41,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 22:11:41,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 22:11:41,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 22:11:41,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 22:11:41,077 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-21 22:11:41,077 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-21 22:11:41,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 22:11:41,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 22:11:41,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 22:11:41,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-21 22:11:41,081 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-21 22:11:41,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 22:11:41,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-21 22:11:41,083 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-21 22:11:41,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-21 22:11:41,084 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-21 22:11:41,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-21 22:11:41,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-21 22:11:41,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 22:11:41,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-21 22:11:41,087 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-21 22:11:41,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-21 22:11:41,089 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-21 22:11:41,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 22:11:41,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-21 22:11:41,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 22:11:41,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-21 22:11:41,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:11:41,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 22:11:41,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 22:11:41,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-21 22:11:41,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-21 22:11:41,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-21 22:11:41,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 22:11:41,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 22:11:41,095 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-21 22:11:41,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 22:11:41,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 22:11:41,097 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_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a16588b251f5de7b3febde43795c7086835cc989637b8bd82aa8d6af355c6b
[2023-11-21 22:11:41,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 22:11:41,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 22:11:41,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 22:11:41,375 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-21 22:11:41,375 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-21 22:11:41,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i
[2023-11-21 22:11:44,973 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-21 22:11:45,337 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-21 22:11:45,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/sv-benchmarks/c/array-examples/sanfoundry_24-1.i
[2023-11-21 22:11:45,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/data/2dd3b3689/31741798ecdf4e2c9685718a47d605bd/FLAG837f59b43
[2023-11-21 22:11:45,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/data/2dd3b3689/31741798ecdf4e2c9685718a47d605bd
[2023-11-21 22:11:45,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 22:11:45,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 22:11:45,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 22:11:45,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 22:11:45,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 22:11:45,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad7278e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45, skipping insertion in model container
[2023-11-21 22:11:45,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,434 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-21 22:11:45,653 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/sv-benchmarks/c/array-examples/sanfoundry_24-1.i[848,861]
[2023-11-21 22:11:45,685 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:11:45,698 INFO L202 MainTranslator]: Completed pre-run
[2023-11-21 22:11:45,719 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/sv-benchmarks/c/array-examples/sanfoundry_24-1.i[848,861]
[2023-11-21 22:11:45,745 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:11:45,764 INFO L206 MainTranslator]: Completed translation
[2023-11-21 22:11:45,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45 WrapperNode
[2023-11-21 22:11:45,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 22:11:45,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-21 22:11:45,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-21 22:11:45,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-21 22:11:45,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,830 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66
[2023-11-21 22:11:45,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-21 22:11:45,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-21 22:11:45,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-21 22:11:45,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-21 22:11:45,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,854 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,876 INFO L187 HeapSplitter]: Split 7 memory accesses to 2 slices as follows [2, 5]
[2023-11-21 22:11:45,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-21 22:11:45,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-21 22:11:45,912 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-21 22:11:45,913 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-21 22:11:45,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (1/1) ...
[2023-11-21 22:11:45,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:11:45,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 22:11:45,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-21 22:11:45,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-21 22:11:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-21 22:11:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-21 22:11:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-11-21 22:11:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-21 22:11:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2023-11-21 22:11:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2023-11-21 22:11:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-21 22:11:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-21 22:11:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2023-11-21 22:11:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2023-11-21 22:11:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-21 22:11:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-21 22:11:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-21 22:11:46,144 INFO L240 CfgBuilder]: Building ICFG
[2023-11-21 22:11:46,147 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-21 22:11:46,449 INFO L281 CfgBuilder]: Performing block encoding
[2023-11-21 22:11:46,506 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-21 22:11:46,506 INFO L308 CfgBuilder]: Removed 3 assume(true) statements.
[2023-11-21 22:11:46,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:46 BoogieIcfgContainer
[2023-11-21 22:11:46,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-21 22:11:46,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-21 22:11:46,513 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-21 22:11:46,517 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-21 22:11:46,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:45" (1/3) ...
[2023-11-21 22:11:46,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c23b3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:46, skipping insertion in model container
[2023-11-21 22:11:46,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:45" (2/3) ...
[2023-11-21 22:11:46,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c23b3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:46, skipping insertion in model container
[2023-11-21 22:11:46,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:46" (3/3) ...
[2023-11-21 22:11:46,521 INFO L112 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i
[2023-11-21 22:11:46,547 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-21 22:11:46,547 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-21 22:11:46,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-21 22:11:46,635 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@422313d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-21 22:11:46,636 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-21 22:11:46,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-21 22:11:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-21 22:11:46,651 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:11:46,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:11:46,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:11:46,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:11:46,660 INFO L85 PathProgramCache]: Analyzing trace with hash -868492830, now seen corresponding path program 1 times
[2023-11-21 22:11:46,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:11:46,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398939815]
[2023-11-21 22:11:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:11:46,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:11:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:11:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:11:47,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:11:47,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398939815]
[2023-11-21 22:11:47,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398939815] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:11:47,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:11:47,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-21 22:11:47,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155735711]
[2023-11-21 22:11:47,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:11:47,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-21 22:11:47,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:11:47,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-21 22:11:47,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:11:47,092 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:11:47,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:11:47,193 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions.
[2023-11-21 22:11:47,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-21 22:11:47,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2023-11-21 22:11:47,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:11:47,206 INFO L225 Difference]: With dead ends: 49
[2023-11-21 22:11:47,206 INFO L226 Difference]: Without dead ends: 29
[2023-11-21 22:11:47,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:11:47,214 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-21 22:11:47,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 32 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-21 22:11:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2023-11-21 22:11:47,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20.
[2023-11-21 22:11:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-21 22:11:47,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions.
[2023-11-21 22:11:47,266 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 8
[2023-11-21 22:11:47,267 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:11:47,267 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions.
[2023-11-21 22:11:47,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:11:47,268 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions.
[2023-11-21 22:11:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-21 22:11:47,269 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:11:47,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:11:47,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-21 22:11:47,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:11:47,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:11:47,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1176871315, now seen corresponding path program 1 times
[2023-11-21 22:11:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:11:47,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329056902]
[2023-11-21 22:11:47,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:11:47,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:11:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:11:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-21 22:11:48,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:11:48,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329056902]
[2023-11-21 22:11:48,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329056902] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:11:48,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:11:48,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-21 22:11:48,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709242130]
[2023-11-21 22:11:48,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:11:48,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-21 22:11:48,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:11:48,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-21 22:11:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-21 22:11:48,046 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:11:48,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:11:48,133 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions.
[2023-11-21 22:11:48,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-21 22:11:48,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2023-11-21 22:11:48,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:11:48,135 INFO L225 Difference]: With dead ends: 26
[2023-11-21 22:11:48,135 INFO L226 Difference]: Without dead ends: 24
[2023-11-21 22:11:48,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2023-11-21 22:11:48,138 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-21 22:11:48,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 61 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-21 22:11:48,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2023-11-21 22:11:48,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2023-11-21 22:11:48,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-21 22:11:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions.
[2023-11-21 22:11:48,152 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 9
[2023-11-21 22:11:48,152 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:11:48,152 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions.
[2023-11-21 22:11:48,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:11:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions.
[2023-11-21 22:11:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2023-11-21 22:11:48,154 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:11:48,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:11:48,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-21 22:11:48,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:11:48,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:11:48,166 INFO L85 PathProgramCache]: Analyzing trace with hash 969412877, now seen corresponding path program 1 times
[2023-11-21 22:11:48,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:11:48,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455991909]
[2023-11-21 22:11:48,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:11:48,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:11:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:11:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-21 22:11:48,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:11:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455991909]
[2023-11-21 22:11:48,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455991909] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:11:48,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:11:48,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-21 22:11:48,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552217194]
[2023-11-21 22:11:48,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:11:48,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-21 22:11:48,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:11:48,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-21 22:11:48,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-21 22:11:48,677 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:11:48,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:11:48,794 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions.
[2023-11-21 22:11:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-21 22:11:48,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2023-11-21 22:11:48,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:11:48,797 INFO L225 Difference]: With dead ends: 24
[2023-11-21 22:11:48,797 INFO L226 Difference]: Without dead ends: 0
[2023-11-21 22:11:48,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2023-11-21 22:11:48,799 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-21 22:11:48,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 61 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-21 22:11:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-11-21 22:11:48,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-11-21 22:11:48,801 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)
[2023-11-21 22:11:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-21 22:11:48,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13
[2023-11-21 22:11:48,802 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:11:48,802 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-21 22:11:48,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:11:48,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-11-21 22:11:48,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2023-11-21 22:11:48,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-21 22:11:48,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-21 22:11:48,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-11-21 22:11:48,832 INFO L902 garLoopResultBuilder]: At program point L27-3(lines 27 30) the Hoare annotation is: true
[2023-11-21 22:11:48,833 INFO L895 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (not (= (* (div |ULTIMATE.start_printOdd_~i#1| 2) 2) |ULTIMATE.start_printOdd_~i#1|))
[2023-11-21 22:11:48,833 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 18 20) no Hoare annotation was computed.
[2023-11-21 22:11:48,833 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 38) no Hoare annotation was computed.
[2023-11-21 22:11:48,833 INFO L902 garLoopResultBuilder]: At program point L32-3(lines 32 38) the Hoare annotation is: true
[2023-11-21 22:11:48,834 INFO L895 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (= |ULTIMATE.start_printEven_~i#1| (* (div |ULTIMATE.start_printEven_~i#1| 2) 2))
[2023-11-21 22:11:48,834 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 15 17) no Hoare annotation was computed.
[2023-11-21 22:11:48,835 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 44) no Hoare annotation was computed.
[2023-11-21 22:11:48,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-11-21 22:11:48,835 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-11-21 22:11:48,835 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 37) no Hoare annotation was computed.
[2023-11-21 22:11:48,835 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 45) no Hoare annotation was computed.
[2023-11-21 22:11:48,836 INFO L902 garLoopResultBuilder]: At program point L39-3(lines 39 45) the Hoare annotation is: true
[2023-11-21 22:11:48,836 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed.
[2023-11-21 22:11:48,836 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed.
[2023-11-21 22:11:48,836 INFO L899 garLoopResultBuilder]: For program point L14-3(line 14) no Hoare annotation was computed.
[2023-11-21 22:11:48,836 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 14) no Hoare annotation was computed.
[2023-11-21 22:11:48,837 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 14) the Hoare annotation is: true
[2023-11-21 22:11:48,837 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed.
[2023-11-21 22:11:48,841 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-21 22:11:48,843 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-21 22:11:48,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:11:48 BoogieIcfgContainer
[2023-11-21 22:11:48,866 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-21 22:11:48,867 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-21 22:11:48,868 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-21 22:11:48,868 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-21 22:11:48,868 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:46" (3/4) ...
[2023-11-21 22:11:48,872 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-21 22:11:48,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2023-11-21 22:11:48,881 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges
[2023-11-21 22:11:48,881 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges
[2023-11-21 22:11:48,882 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-21 22:11:48,882 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-21 22:11:48,995 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/witness.graphml
[2023-11-21 22:11:48,996 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/witness.yml
[2023-11-21 22:11:48,996 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-21 22:11:48,997 INFO L158 Benchmark]: Toolchain (without parser) took 3605.87ms. Allocated memory is still 195.0MB. Free memory was 165.3MB in the beginning and 89.3MB in the end (delta: 76.0MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB.
[2023-11-21 22:11:48,997 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 22:11:48,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.20ms. Allocated memory is still 195.0MB. Free memory was 164.8MB in the beginning and 154.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-21 22:11:48,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.23ms. Allocated memory is still 195.0MB. Free memory was 154.3MB in the beginning and 152.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 22:11:48,998 INFO L158 Benchmark]: Boogie Preprocessor took 78.45ms. Allocated memory is still 195.0MB. Free memory was 152.8MB in the beginning and 151.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-21 22:11:48,999 INFO L158 Benchmark]: RCFGBuilder took 597.40ms. Allocated memory is still 195.0MB. Free memory was 150.7MB in the beginning and 137.0MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-21 22:11:48,999 INFO L158 Benchmark]: TraceAbstraction took 2353.67ms. Allocated memory is still 195.0MB. Free memory was 136.5MB in the beginning and 94.6MB in the end (delta: 42.0MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB.
[2023-11-21 22:11:49,000 INFO L158 Benchmark]: Witness Printer took 128.37ms. Allocated memory is still 195.0MB. Free memory was 94.6MB in the beginning and 89.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-21 22:11:49,002 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 370.20ms. Allocated memory is still 195.0MB. Free memory was 164.8MB in the beginning and 154.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 64.23ms. Allocated memory is still 195.0MB. Free memory was 154.3MB in the beginning and 152.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 78.45ms. Allocated memory is still 195.0MB. Free memory was 152.8MB in the beginning and 151.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 597.40ms. Allocated memory is still 195.0MB. Free memory was 150.7MB in the beginning and 137.0MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 2353.67ms. Allocated memory is still 195.0MB. Free memory was 136.5MB in the beginning and 94.6MB in the end (delta: 42.0MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB.
* Witness Printer took 128.37ms. Allocated memory is still 195.0MB. Free memory was 94.6MB in the beginning and 89.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 14]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 44 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 19 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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
1 specifications checked. All of them hold
- InvariantResult [Line: 39]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 32]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 27]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2023-11-21 22:11:49,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fddccf-f475-4d84-b5a1-7adf0eff49f2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE