./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --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 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 22:58:50,882 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 22:58:50,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 22:58:50,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 22:58:50,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 22:58:50,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 22:58:50,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 22:58:50,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 22:58:50,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 22:58:50,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 22:58:50,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 22:58:50,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 22:58:50,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 22:58:50,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 22:58:50,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 22:58:50,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 22:58:50,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 22:58:50,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 22:58:50,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 22:58:50,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 22:58:50,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 22:58:50,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 22:58:50,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 22:58:50,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 22:58:50,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 22:58:50,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 22:58:50,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 22:58:50,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 22:58:50,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 22:58:50,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 22:58:50,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 22:58:50,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 22:58:50,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 22:58:50,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 22:58:50,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 22:58:50,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 22:58:50,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 22:58:50,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 22:58:50,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 22:58:50,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 22:58:50,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 22:58:50,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 22:58:50,986 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 22:58:50,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 22:58:50,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 22:58:50,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 22:58:50,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 22:58:50,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 22:58:50,989 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 22:58:50,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 22:58:50,989 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 22:58:50,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 22:58:50,990 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 22:58:50,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 22:58:50,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 22:58:50,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 22:58:50,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 22:58:50,991 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 22:58:50,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 22:58:50,992 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 22:58:50,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-28 22:58:50,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 22:58:50,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 22:58:50,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 22:58:50,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 22:58:50,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 22:58:50,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 22:58:50,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 22:58:50,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 22:58:50,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 22:58:50,995 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-10-28 22:58:50,995 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 22:58:50,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 22:58:50,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 22:58:50,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472
[2021-10-28 22:58:51,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 22:58:51,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 22:58:51,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 22:58:51,266 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 22:58:51,266 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 22:58:51,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loop-acceleration/array_3-1.i
[2021-10-28 22:58:51,347 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/data/3b4559ae6/973646d8dff54be5b4d78c414a574b3e/FLAGcac84c174
[2021-10-28 22:58:51,839 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 22:58:51,840 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/sv-benchmarks/c/loop-acceleration/array_3-1.i
[2021-10-28 22:58:51,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/data/3b4559ae6/973646d8dff54be5b4d78c414a574b3e/FLAGcac84c174
[2021-10-28 22:58:52,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/data/3b4559ae6/973646d8dff54be5b4d78c414a574b3e
[2021-10-28 22:58:52,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 22:58:52,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 22:58:52,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 22:58:52,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 22:58:52,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 22:58:52,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a532c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52, skipping insertion in model container
[2021-10-28 22:58:52,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 22:58:52,257 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 22:58:52,449 WARN L228 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_db87b367-fa48-4be3-97b0-3358842f620f/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862]
[2021-10-28 22:58:52,462 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 22:58:52,471 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 22:58:52,486 WARN L228 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_db87b367-fa48-4be3-97b0-3358842f620f/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862]
[2021-10-28 22:58:52,491 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 22:58:52,506 INFO L208 MainTranslator]: Completed translation
[2021-10-28 22:58:52,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52 WrapperNode
[2021-10-28 22:58:52,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 22:58:52,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 22:58:52,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 22:58:52,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 22:58:52,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 22:58:52,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 22:58:52,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 22:58:52,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 22:58:52,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 22:58:52,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 22:58:52,573 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 22:58:52,573 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 22:58:52,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (1/1) ...
[2021-10-28 22:58:52,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 22:58:52,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:58:52,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 22:58:52,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 22:58:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 22:58:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 22:58:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-10-28 22:58:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 22:58:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 22:58:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-10-28 22:58:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-10-28 22:58:52,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 22:58:52,875 INFO L299 CfgBuilder]: Removed 8 assume(true) statements.
[2021-10-28 22:58:52,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:58:52 BoogieIcfgContainer
[2021-10-28 22:58:52,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 22:58:52,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 22:58:52,890 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 22:58:52,893 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 22:58:52,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:58:52" (1/3) ...
[2021-10-28 22:58:52,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b35538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:58:52, skipping insertion in model container
[2021-10-28 22:58:52,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:52" (2/3) ...
[2021-10-28 22:58:52,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b35538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:58:52, skipping insertion in model container
[2021-10-28 22:58:52,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:58:52" (3/3) ...
[2021-10-28 22:58:52,897 INFO L111 eAbstractionObserver]: Analyzing ICFG array_3-1.i
[2021-10-28 22:58:52,902 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 22:58:52,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-28 22:58:53,002 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 22:58:53,010 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-10-28 22:58:53,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-28 22:58:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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)
[2021-10-28 22:58:53,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-10-28 22:58:53,031 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 22:58:53,031 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:58:53,032 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:58:53,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:58:53,039 INFO L85 PathProgramCache]: Analyzing trace with hash 212411183, now seen corresponding path program 1 times
[2021-10-28 22:58:53,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:58:53,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20973541]
[2021-10-28 22:58:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:58:53,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:58:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:58:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:58:53,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:58:53,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20973541]
[2021-10-28 22:58:53,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20973541] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:58:53,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:58:53,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:58:53,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137944629]
[2021-10-28 22:58:53,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:58:53,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:58:53,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:58:53,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:58:53,244 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2021-10-28 22:58:53,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:58:53,290 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions.
[2021-10-28 22:58:53,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 22:58:53,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8
[2021-10-28 22:58:53,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:58:53,300 INFO L225 Difference]: With dead ends: 44
[2021-10-28 22:58:53,301 INFO L226 Difference]: Without dead ends: 23
[2021-10-28 22:58:53,304 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:58:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2021-10-28 22:58:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17.
[2021-10-28 22:58:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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)
[2021-10-28 22:58:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions.
[2021-10-28 22:58:53,335 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 8
[2021-10-28 22:58:53,336 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:58:53,336 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions.
[2021-10-28 22:58:53,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2021-10-28 22:58:53,337 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions.
[2021-10-28 22:58:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-28 22:58:53,337 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 22:58:53,338 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:58:53,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 22:58:53,339 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:58:53,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:58:53,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1562587830, now seen corresponding path program 1 times
[2021-10-28 22:58:53,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:58:53,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743258506]
[2021-10-28 22:58:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:58:53,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:58:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:58:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:58:53,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:58:53,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743258506]
[2021-10-28 22:58:53,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743258506] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:58:53,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768813760]
[2021-10-28 22:58:53,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:58:53,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:58:53,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:58:53,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 22:58:53,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-28 22:58:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:58:53,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-10-28 22:58:53,474 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:58:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:58:53,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768813760] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:58:53,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 22:58:53,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5
[2021-10-28 22:58:53,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993171473]
[2021-10-28 22:58:53,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 22:58:53,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:58:53,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 22:58:53,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:58:53,574 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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)
[2021-10-28 22:58:53,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:58:53,622 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions.
[2021-10-28 22:58:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 22:58:53,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 11
[2021-10-28 22:58:53,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:58:53,623 INFO L225 Difference]: With dead ends: 45
[2021-10-28 22:58:53,624 INFO L226 Difference]: Without dead ends: 33
[2021-10-28 22:58:53,625 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:58:53,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2021-10-28 22:58:53,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23.
[2021-10-28 22:58:53,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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)
[2021-10-28 22:58:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2021-10-28 22:58:53,630 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 11
[2021-10-28 22:58:53,630 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:58:53,630 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2021-10-28 22:58:53,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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)
[2021-10-28 22:58:53,631 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2021-10-28 22:58:53,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-10-28 22:58:53,632 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 22:58:53,632 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:58:53,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-28 22:58:53,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:58:53,847 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:58:53,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:58:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1568667532, now seen corresponding path program 2 times
[2021-10-28 22:58:53,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:58:53,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71369620]
[2021-10-28 22:58:53,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:58:53,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:58:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:58:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-28 22:58:53,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:58:53,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71369620]
[2021-10-28 22:58:53,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71369620] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:58:53,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:58:53,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 22:58:53,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298147464]
[2021-10-28 22:58:53,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 22:58:53,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:58:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 22:58:53,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 22:58:53,962 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2021-10-28 22:58:54,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:58:54,010 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions.
[2021-10-28 22:58:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 22:58:54,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 13
[2021-10-28 22:58:54,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:58:54,012 INFO L225 Difference]: With dead ends: 27
[2021-10-28 22:58:54,013 INFO L226 Difference]: Without dead ends: 23
[2021-10-28 22:58:54,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:58:54,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2021-10-28 22:58:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2021-10-28 22:58:54,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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)
[2021-10-28 22:58:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions.
[2021-10-28 22:58:54,026 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13
[2021-10-28 22:58:54,027 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:58:54,028 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions.
[2021-10-28 22:58:54,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2021-10-28 22:58:54,028 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions.
[2021-10-28 22:58:54,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-10-28 22:58:54,030 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 22:58:54,030 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:58:54,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-28 22:58:54,031 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:58:54,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:58:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1592576845, now seen corresponding path program 1 times
[2021-10-28 22:58:54,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:58:54,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120016550]
[2021-10-28 22:58:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:58:54,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:58:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:58:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-28 22:58:54,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:58:54,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120016550]
[2021-10-28 22:58:54,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120016550] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:58:54,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450238945]
[2021-10-28 22:58:54,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:58:54,093 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:58:54,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:58:54,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 22:58:54,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-10-28 22:58:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:58:54,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:58:54,146 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:58:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-28 22:58:54,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450238945] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:58:54,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 22:58:54,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-10-28 22:58:54,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061354234]
[2021-10-28 22:58:54,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-10-28 22:58:54,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:58:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-10-28 22:58:54,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-10-28 22:58:54,207 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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)
[2021-10-28 22:58:54,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:58:54,276 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions.
[2021-10-28 22:58:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-10-28 22:58:54,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) Word has length 17
[2021-10-28 22:58:54,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:58:54,278 INFO L225 Difference]: With dead ends: 51
[2021-10-28 22:58:54,278 INFO L226 Difference]: Without dead ends: 31
[2021-10-28 22:58:54,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2021-10-28 22:58:54,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2021-10-28 22:58:54,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29.
[2021-10-28 22:58:54,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 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)
[2021-10-28 22:58:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions.
[2021-10-28 22:58:54,284 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 17
[2021-10-28 22:58:54,284 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:58:54,285 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions.
[2021-10-28 22:58:54,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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)
[2021-10-28 22:58:54,285 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions.
[2021-10-28 22:58:54,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-28 22:58:54,286 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 22:58:54,286 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:58:54,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2021-10-28 22:58:54,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:58:54,509 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:58:54,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:58:54,510 INFO L85 PathProgramCache]: Analyzing trace with hash -834386755, now seen corresponding path program 2 times
[2021-10-28 22:58:54,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:58:54,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622843740]
[2021-10-28 22:58:54,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:58:54,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:58:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:58:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2021-10-28 22:58:54,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:58:54,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622843740]
[2021-10-28 22:58:54,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622843740] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:58:54,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:58:54,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-28 22:58:54,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584639799]
[2021-10-28 22:58:54,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 22:58:54,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:58:54,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 22:58:54,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:58:54,579 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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)
[2021-10-28 22:58:54,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:58:54,613 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions.
[2021-10-28 22:58:54,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 22:58:54,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) Word has length 27
[2021-10-28 22:58:54,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:58:54,615 INFO L225 Difference]: With dead ends: 29
[2021-10-28 22:58:54,615 INFO L226 Difference]: Without dead ends: 0
[2021-10-28 22:58:54,616 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2021-10-28 22:58:54,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-28 22:58:54,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-28 22:58:54,617 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)
[2021-10-28 22:58:54,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-28 22:58:54,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27
[2021-10-28 22:58:54,617 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:58:54,618 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 22:58:54,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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)
[2021-10-28 22:58:54,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-28 22:58:54,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-28 22:58:54,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 22:58:54,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-28 22:58:54,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-10-28 22:58:54,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 22:58:54,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 22:58:54,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 22:58:54,670 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-10-28 22:58:54,670 INFO L857 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed.
[2021-10-28 22:58:54,670 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed.
[2021-10-28 22:58:54,671 INFO L860 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: true
[2021-10-28 22:58:54,671 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-10-28 22:58:54,671 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-10-28 22:58:54,671 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-10-28 22:58:54,671 INFO L857 garLoopResultBuilder]: For program point L28-1(lines 28 32) no Hoare annotation was computed.
[2021-10-28 22:58:54,672 INFO L857 garLoopResultBuilder]: For program point L28-3(lines 28 32) no Hoare annotation was computed.
[2021-10-28 22:58:54,672 INFO L853 garLoopResultBuilder]: At program point L28-4(lines 28 32) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 1023)
[2021-10-28 22:58:54,672 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed.
[2021-10-28 22:58:54,672 INFO L857 garLoopResultBuilder]: For program point L28-5(lines 28 32) no Hoare annotation was computed.
[2021-10-28 22:58:54,672 INFO L857 garLoopResultBuilder]: For program point L24-2(lines 24 26) no Hoare annotation was computed.
[2021-10-28 22:58:54,673 INFO L860 garLoopResultBuilder]: At program point L24-3(lines 24 26) the Hoare annotation is: true
[2021-10-28 22:58:54,673 INFO L857 garLoopResultBuilder]: For program point L24-4(lines 24 26) no Hoare annotation was computed.
[2021-10-28 22:58:54,673 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 34) no Hoare annotation was computed.
[2021-10-28 22:58:54,673 INFO L857 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed.
[2021-10-28 22:58:54,677 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 1]
[2021-10-28 22:58:54,678 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 22:58:54,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:58:54 BoogieIcfgContainer
[2021-10-28 22:58:54,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 22:58:54,696 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 22:58:54,697 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 22:58:54,697 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 22:58:54,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:58:52" (3/4) ...
[2021-10-28 22:58:54,701 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-28 22:58:54,712 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges
[2021-10-28 22:58:54,712 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-10-28 22:58:54,712 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-10-28 22:58:54,713 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 22:58:54,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 22:58:54,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 22:58:54,768 INFO L168 Benchmark]: Toolchain (without parser) took 2550.95 ms. Allocated memory is still 134.2 MB. Free memory was 103.3 MB in the beginning and 95.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB.
[2021-10-28 22:58:54,769 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 22:58:54,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.55 ms. Allocated memory is still 134.2 MB. Free memory was 102.9 MB in the beginning and 110.1 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 22:58:54,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.47 ms. Allocated memory is still 134.2 MB. Free memory was 110.1 MB in the beginning and 108.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 22:58:54,773 INFO L168 Benchmark]: Boogie Preprocessor took 25.05 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 107.5 MB in the end (delta: 989.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 22:58:54,774 INFO L168 Benchmark]: RCFGBuilder took 315.65 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 97.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 22:58:54,777 INFO L168 Benchmark]: TraceAbstraction took 1806.19 ms. Allocated memory is still 134.2 MB. Free memory was 97.0 MB in the beginning and 98.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 242.0 kB. Max. memory is 16.1 GB.
[2021-10-28 22:58:54,777 INFO L168 Benchmark]: Witness Printer took 69.77 ms. Allocated memory is still 134.2 MB. Free memory was 98.6 MB in the beginning and 95.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 22:58:54,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 282.55 ms. Allocated memory is still 134.2 MB. Free memory was 102.9 MB in the beginning and 110.1 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 37.47 ms. Allocated memory is still 134.2 MB. Free memory was 110.1 MB in the beginning and 108.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 25.05 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 107.5 MB in the end (delta: 989.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 315.65 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 97.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 1806.19 ms. Allocated memory is still 134.2 MB. Free memory was 97.0 MB in the beginning and 98.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 242.0 kB. Max. memory is 16.1 GB.
* Witness Printer took 69.77 ms. Allocated memory is still 134.2 MB. Free memory was 98.6 MB in the beginning and 95.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* 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: 16]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 66 SDslu, 64 SDs, 0 SdLazy, 113 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 12 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 37/45 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: 24]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 28]: Loop Invariant
Derived loop invariant: i <= 1023
- InvariantResult [Line: 14]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2021-10-28 22:58:54,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db87b367-fa48-4be3-97b0-3358842f620f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...