./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/recHanoi03-2.c --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_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/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_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi03-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/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_7226e3d2-3d3a-4145-a686-91329d5d98e0/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 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 23:10:58,964 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:10:58,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:10:59,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:10:59,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:10:59,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:10:59,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:10:59,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:10:59,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:10:59,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:10:59,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:10:59,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:10:59,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:10:59,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:10:59,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:10:59,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:10:59,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:10:59,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:10:59,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:10:59,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:10:59,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:10:59,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:10:59,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:10:59,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:10:59,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:10:59,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:10:59,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:10:59,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:10:59,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:10:59,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:10:59,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:10:59,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:10:59,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:10:59,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:10:59,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:10:59,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:10:59,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:10:59,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:10:59,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:10:59,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:10:59,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:10:59,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 23:10:59,128 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:10:59,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:10:59,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:10:59,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:10:59,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:10:59,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:10:59,131 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:10:59,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:10:59,132 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 23:10:59,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:10:59,132 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 23:10:59,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:10:59,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 23:10:59,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 23:10:59,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 23:10:59,134 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 23:10:59,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 23:10:59,134 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:10:59,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-28 23:10:59,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:10:59,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:10:59,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 23:10:59,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:10:59,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:10:59,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 23:10:59,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 23:10:59,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:10:59,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 23:10:59,137 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-10-28 23:10:59,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 23:10:59,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 23:10:59,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:10:59,138 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_7226e3d2-3d3a-4145-a686-91329d5d98e0/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72
[2021-10-28 23:10:59,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:10:59,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:10:59,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:10:59,548 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:10:59,549 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:10:59,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/recursive/recHanoi03-2.c
[2021-10-28 23:10:59,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/data/22723759c/7ea08fa6f6a84c28b358f5378d816fd3/FLAG2bfaecce2
[2021-10-28 23:11:00,325 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:11:00,327 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/sv-benchmarks/c/recursive/recHanoi03-2.c
[2021-10-28 23:11:00,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/data/22723759c/7ea08fa6f6a84c28b358f5378d816fd3/FLAG2bfaecce2
[2021-10-28 23:11:00,670 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/data/22723759c/7ea08fa6f6a84c28b358f5378d816fd3
[2021-10-28 23:11:00,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:11:00,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 23:11:00,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:11:00,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:11:00,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:11:00,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:11:00" (1/1) ...
[2021-10-28 23:11:00,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a50ca33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:00, skipping insertion in model container
[2021-10-28 23:11:00,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:11:00" (1/1) ...
[2021-10-28 23:11:00,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:11:00,712 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:11:00,963 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_7226e3d2-3d3a-4145-a686-91329d5d98e0/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782]
[2021-10-28 23:11:00,967 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:11:01,004 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:11:01,020 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_7226e3d2-3d3a-4145-a686-91329d5d98e0/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782]
[2021-10-28 23:11:01,021 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:11:01,036 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:11:01,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01 WrapperNode
[2021-10-28 23:11:01,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:11:01,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 23:11:01,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 23:11:01,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 23:11:01,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 23:11:01,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:11:01,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:11:01,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:11:01,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:11:01,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:11:01,114 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:11:01,114 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:11:01,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ...
[2021-10-28 23:11:01,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:11:01,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:11:01,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 23:11:01,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:11:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi
[2021-10-28 23:11:01,235 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi
[2021-10-28 23:11:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:11:01,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:11:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 23:11:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 23:11:01,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:11:01,475 INFO L299 CfgBuilder]: Removed 4 assume(true) statements.
[2021-10-28 23:11:01,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:01 BoogieIcfgContainer
[2021-10-28 23:11:01,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:11:01,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 23:11:01,480 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 23:11:01,485 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 23:11:01,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:11:00" (1/3) ...
[2021-10-28 23:11:01,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ffb04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:11:01, skipping insertion in model container
[2021-10-28 23:11:01,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (2/3) ...
[2021-10-28 23:11:01,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ffb04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:11:01, skipping insertion in model container
[2021-10-28 23:11:01,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:01" (3/3) ...
[2021-10-28 23:11:01,505 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c
[2021-10-28 23:11:01,512 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 23:11:01,512 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-28 23:11:01,572 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 23:11:01,581 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 23:11:01,582 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-28 23:11:01,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:11:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-28 23:11:01,607 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:11:01,608 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:11:01,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:11:01,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:11:01,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2087939196, now seen corresponding path program 1 times
[2021-10-28 23:11:01,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:11:01,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146322412]
[2021-10-28 23:11:01,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:01,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:11:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:01,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-28 23:11:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:01,997 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 23:11:01,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:11:01,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146322412]
[2021-10-28 23:11:01,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146322412] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:11:02,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:11:02,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-10-28 23:11:02,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777957228]
[2021-10-28 23:11:02,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-28 23:11:02,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:11:02,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:11:02,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:11:02,028 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:11:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:11:02,171 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions.
[2021-10-28 23:11:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-10-28 23:11:02,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2021-10-28 23:11:02,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:11:02,196 INFO L225 Difference]: With dead ends: 29
[2021-10-28 23:11:02,197 INFO L226 Difference]: Without dead ends: 16
[2021-10-28 23:11:02,202 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-10-28 23:11:02,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2021-10-28 23:11:02,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2021-10-28 23:11:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 12 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2021-10-28 23:11:02,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2021-10-28 23:11:02,260 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11
[2021-10-28 23:11:02,261 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:11:02,262 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2021-10-28 23:11:02,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:11:02,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2021-10-28 23:11:02,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-10-28 23:11:02,265 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:11:02,266 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:11:02,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 23:11:02,267 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:11:02,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:11:02,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2053638732, now seen corresponding path program 1 times
[2021-10-28 23:11:02,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:11:02,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235698951]
[2021-10-28 23:11:02,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:02,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:11:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-28 23:11:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-28 23:11:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-28 23:11:02,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:11:02,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235698951]
[2021-10-28 23:11:02,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235698951] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:11:02,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768755819]
[2021-10-28 23:11:02,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:02,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:02,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:11:02,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:11:02,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-28 23:11:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:02,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-28 23:11:02,751 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:11:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-28 23:11:03,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768755819] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:11:03,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:11:03,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2021-10-28 23:11:03,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245173173]
[2021-10-28 23:11:03,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2021-10-28 23:11:03,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:11:03,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-10-28 23:11:03,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182
[2021-10-28 23:11:03,101 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2021-10-28 23:11:03,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:11:03,204 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions.
[2021-10-28 23:11:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-10-28 23:11:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 17
[2021-10-28 23:11:03,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:11:03,206 INFO L225 Difference]: With dead ends: 23
[2021-10-28 23:11:03,206 INFO L226 Difference]: Without dead ends: 19
[2021-10-28 23:11:03,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272
[2021-10-28 23:11:03,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2021-10-28 23:11:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2021-10-28 23:11:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2021-10-28 23:11:03,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions.
[2021-10-28 23:11:03,213 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17
[2021-10-28 23:11:03,213 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:11:03,213 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions.
[2021-10-28 23:11:03,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2021-10-28 23:11:03,214 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions.
[2021-10-28 23:11:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-10-28 23:11:03,215 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:11:03,215 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:11:03,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-28 23:11:03,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:03,443 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:11:03,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:11:03,444 INFO L85 PathProgramCache]: Analyzing trace with hash -473461948, now seen corresponding path program 2 times
[2021-10-28 23:11:03,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:11:03,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555709334]
[2021-10-28 23:11:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:03,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:11:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:03,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-28 23:11:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:03,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-28 23:11:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:03,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-28 23:11:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2021-10-28 23:11:03,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:11:03,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555709334]
[2021-10-28 23:11:03,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555709334] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:11:03,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634705909]
[2021-10-28 23:11:03,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:11:03,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:03,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:11:03,727 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:11:03,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-10-28 23:11:03,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:11:03,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:11:03,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 15 conjunts are in the unsatisfiable core
[2021-10-28 23:11:03,804 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:11:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2021-10-28 23:11:04,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634705909] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:11:04,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 23:11:04,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2021-10-28 23:11:04,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185211271]
[2021-10-28 23:11:04,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2021-10-28 23:11:04,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:11:04,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-10-28 23:11:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306
[2021-10-28 23:11:04,361 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 12 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6)
[2021-10-28 23:11:04,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:11:04,616 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions.
[2021-10-28 23:11:04,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-10-28 23:11:04,617 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 12 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) Word has length 23
[2021-10-28 23:11:04,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:11:04,619 INFO L225 Difference]: With dead ends: 31
[2021-10-28 23:11:04,619 INFO L226 Difference]: Without dead ends: 25
[2021-10-28 23:11:04,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600
[2021-10-28 23:11:04,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2021-10-28 23:11:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2021-10-28 23:11:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 18 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6)
[2021-10-28 23:11:04,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions.
[2021-10-28 23:11:04,641 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 23
[2021-10-28 23:11:04,641 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:11:04,641 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions.
[2021-10-28 23:11:04,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 12 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6)
[2021-10-28 23:11:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions.
[2021-10-28 23:11:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2021-10-28 23:11:04,644 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:11:04,644 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:11:04,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-10-28 23:11:04,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:04,845 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:11:04,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:11:04,845 INFO L85 PathProgramCache]: Analyzing trace with hash 456352516, now seen corresponding path program 3 times
[2021-10-28 23:11:04,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:11:04,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122995900]
[2021-10-28 23:11:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:04,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:11:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:04,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-28 23:11:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:04,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-28 23:11:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:05,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-28 23:11:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:05,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-28 23:11:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-28 23:11:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2021-10-28 23:11:05,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:11:05,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122995900]
[2021-10-28 23:11:05,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122995900] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:11:05,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699621313]
[2021-10-28 23:11:05,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-10-28 23:11:05,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:05,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:11:05,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:11:05,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-10-28 23:11:05,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2021-10-28 23:11:05,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:11:05,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 13 conjunts are in the unsatisfiable core
[2021-10-28 23:11:05,305 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:11:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2021-10-28 23:11:05,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699621313] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:11:05,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:11:05,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 26
[2021-10-28 23:11:05,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51648095]
[2021-10-28 23:11:05,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2021-10-28 23:11:05,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:11:05,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-10-28 23:11:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650
[2021-10-28 23:11:05,977 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 9 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5)
[2021-10-28 23:11:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:11:06,050 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions.
[2021-10-28 23:11:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-10-28 23:11:06,051 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 9 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35
[2021-10-28 23:11:06,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:11:06,053 INFO L225 Difference]: With dead ends: 25
[2021-10-28 23:11:06,053 INFO L226 Difference]: Without dead ends: 0
[2021-10-28 23:11:06,057 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650
[2021-10-28 23:11:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-28 23:11:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-28 23:11:06,058 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 23:11:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-28 23:11:06,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35
[2021-10-28 23:11:06,059 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:11:06,059 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 23:11:06,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 9 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5)
[2021-10-28 23:11:06,060 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-28 23:11:06,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-28 23:11:06,067 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:11:06,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-10-28 23:11:06,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:06,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-10-28 23:11:06,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:11:06,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:11:06,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:11:06,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:11:06,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:11:06,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:11:06,313 INFO L857 garLoopResultBuilder]: For program point hanoiEXIT(lines 18 23) no Hoare annotation was computed.
[2021-10-28 23:11:06,313 INFO L860 garLoopResultBuilder]: At program point hanoiENTRY(lines 18 23) the Hoare annotation is: true
[2021-10-28 23:11:06,314 INFO L857 garLoopResultBuilder]: For program point hanoiFINAL(lines 18 23) no Hoare annotation was computed.
[2021-10-28 23:11:06,314 INFO L853 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|)
[2021-10-28 23:11:06,314 INFO L857 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed.
[2021-10-28 23:11:06,314 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 21) no Hoare annotation was computed.
[2021-10-28 23:11:06,314 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-10-28 23:11:06,314 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 36) no Hoare annotation was computed.
[2021-10-28 23:11:06,314 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-10-28 23:11:06,314 INFO L853 garLoopResultBuilder]: At program point L31(line 31) the Hoare annotation is: (<= ULTIMATE.start_main_~n~0 31)
[2021-10-28 23:11:06,315 INFO L857 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed.
[2021-10-28 23:11:06,315 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-10-28 23:11:06,315 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-10-28 23:11:06,315 INFO L857 garLoopResultBuilder]: For program point L28(lines 28 30) no Hoare annotation was computed.
[2021-10-28 23:11:06,315 INFO L860 garLoopResultBuilder]: At program point L26(lines 26 37) the Hoare annotation is: true
[2021-10-28 23:11:06,315 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed.
[2021-10-28 23:11:06,315 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed.
[2021-10-28 23:11:06,318 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1]
[2021-10-28 23:11:06,320 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 23:11:06,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:11:06 BoogieIcfgContainer
[2021-10-28 23:11:06,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 23:11:06,328 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:11:06,329 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:11:06,329 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:11:06,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:01" (3/4) ...
[2021-10-28 23:11:06,333 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-28 23:11:06,340 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hanoi
[2021-10-28 23:11:06,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2021-10-28 23:11:06,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-10-28 23:11:06,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:11:06,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:11:06,381 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:11:06,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:11:06,382 INFO L168 Benchmark]: Toolchain (without parser) took 5705.84 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 56.3 MB in the beginning and 54.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB.
[2021-10-28 23:11:06,383 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory was 72.4 MB in the beginning and 72.4 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:11:06,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.91 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 73.9 MB in the end (delta: -17.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:11:06,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 98.6 MB. Free memory was 73.9 MB in the beginning and 72.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:11:06,384 INFO L168 Benchmark]: Boogie Preprocessor took 24.38 ms. Allocated memory is still 98.6 MB. Free memory was 72.5 MB in the beginning and 71.6 MB in the end (delta: 910.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:11:06,385 INFO L168 Benchmark]: RCFGBuilder took 364.66 ms. Allocated memory is still 98.6 MB. Free memory was 71.6 MB in the beginning and 62.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:11:06,385 INFO L168 Benchmark]: TraceAbstraction took 4847.98 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 61.8 MB in the beginning and 57.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:11:06,386 INFO L168 Benchmark]: Witness Printer took 52.42 ms. Allocated memory is still 119.5 MB. Free memory was 57.7 MB in the beginning and 54.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:11:06,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory was 72.4 MB in the beginning and 72.4 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 359.91 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 73.9 MB in the end (delta: -17.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 98.6 MB. Free memory was 73.9 MB in the beginning and 72.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Boogie Preprocessor took 24.38 ms. Allocated memory is still 98.6 MB. Free memory was 72.5 MB in the beginning and 71.6 MB in the end (delta: 910.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 364.66 ms. Allocated memory is still 98.6 MB. Free memory was 71.6 MB in the beginning and 62.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 4847.98 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 61.8 MB in the beginning and 57.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB.
* Witness Printer took 52.42 ms. Allocated memory is still 119.5 MB. Free memory was 57.7 MB in the beginning and 54.5 MB in the end (delta: 3.1 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: 35]: 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 32 SDslu, 287 SDs, 0 SdLazy, 304 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 718 SizeOfPredicates, 11 NumberOfNonLiveVariables, 266 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 96/140 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: 26]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2021-10-28 23:11:06,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7226e3d2-3d3a-4145-a686-91329d5d98e0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...