./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y --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 cea92a885059765321ed7cf859cc3b638b98fdf9848e92fde0851dbffef1cf19
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:53:33,036 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:53:33,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:53:33,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:53:33,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:53:33,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:53:33,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:53:33,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:53:33,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:53:33,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:53:33,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:53:33,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:53:33,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:53:33,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:53:33,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:53:33,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:53:33,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:53:33,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:53:33,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:53:33,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:53:33,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:53:33,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:53:33,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:53:33,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:53:33,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:53:33,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:53:33,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:53:33,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:53:33,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:53:33,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:53:33,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:53:33,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:53:33,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:53:33,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:53:33,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:53:33,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:53:33,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:53:33,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:53:33,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:53:33,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:53:33,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:53:33,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 18:53:33,252 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:53:33,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:53:33,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:53:33,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:53:33,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:53:33,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:53:33,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:53:33,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:53:33,257 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:53:33,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:53:33,258 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:53:33,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:53:33,259 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:53:33,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:53:33,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 18:53:33,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:53:33,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 18:53:33,260 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:53:33,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 18:53:33,261 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:53:33,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 18:53:33,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:53:33,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:53:33,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:53:33,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:53:33,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:53:33,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:53:33,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 18:53:33,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:53:33,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 18:53:33,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 18:53:33,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 18:53:33,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 18:53:33,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:53:33,266 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_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cea92a885059765321ed7cf859cc3b638b98fdf9848e92fde0851dbffef1cf19
[2021-11-13 18:53:33,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:53:33,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:53:33,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:53:33,702 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:53:33,703 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:53:33,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c
[2021-11-13 18:53:33,808 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/data/afda4722a/08e78533078b4b0aa70cb4f7d1027a81/FLAG35eb69cd5
[2021-11-13 18:53:34,411 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:53:34,412 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c
[2021-11-13 18:53:34,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/data/afda4722a/08e78533078b4b0aa70cb4f7d1027a81/FLAG35eb69cd5
[2021-11-13 18:53:34,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/data/afda4722a/08e78533078b4b0aa70cb4f7d1027a81
[2021-11-13 18:53:34,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:53:34,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 18:53:34,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:53:34,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:53:34,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:53:34,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:53:34" (1/1) ...
[2021-11-13 18:53:34,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c63205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:34, skipping insertion in model container
[2021-11-13 18:53:34,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:53:34" (1/1) ...
[2021-11-13 18:53:34,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:53:34,832 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:53:35,090 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_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027]
[2021-11-13 18:53:35,097 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:53:35,115 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:53:35,153 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_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027]
[2021-11-13 18:53:35,154 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:53:35,172 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:53:35,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35 WrapperNode
[2021-11-13 18:53:35,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:53:35,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 18:53:35,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 18:53:35,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 18:53:35,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 18:53:35,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:53:35,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:53:35,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:53:35,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:53:35,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:53:35,291 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:53:35,291 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:53:35,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (1/1) ...
[2021-11-13 18:53:35,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:53:35,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:53:35,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:53:35,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:53:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 18:53:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:53:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:53:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:53:35,739 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:53:35,739 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-11-13 18:53:35,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:53:35 BoogieIcfgContainer
[2021-11-13 18:53:35,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:53:35,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:53:35,762 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:53:35,766 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:53:35,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:53:34" (1/3) ...
[2021-11-13 18:53:35,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227e9b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:53:35, skipping insertion in model container
[2021-11-13 18:53:35,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:53:35" (2/3) ...
[2021-11-13 18:53:35,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227e9b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:53:35, skipping insertion in model container
[2021-11-13 18:53:35,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:53:35" (3/3) ...
[2021-11-13 18:53:35,772 INFO L111 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c
[2021-11-13 18:53:35,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:53:35,785 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 18:53:35,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:53:35,886 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
[2021-11-13 18:53:35,887 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 18:53:35,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 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)
[2021-11-13 18:53:35,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-11-13 18:53:35,924 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:53:35,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:53:35,926 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:53:35,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:53:35,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908747, now seen corresponding path program 1 times
[2021-11-13 18:53:35,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:53:35,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799660624]
[2021-11-13 18:53:35,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:53:35,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:53:36,079 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:53:36,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1817001375]
[2021-11-13 18:53:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:53:36,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:53:36,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:53:36,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:53:36,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-13 18:53:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:53:36,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:53:36,211 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:53:36,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:53:36,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-13 18:53:36,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:53:36,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799660624]
[2021-11-13 18:53:36,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:53:36,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817001375]
[2021-11-13 18:53:36,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817001375] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:53:36,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:53:36,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-13 18:53:36,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404624781]
[2021-11-13 18:53:36,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:53:36,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:53:36,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:53:36,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:53:36,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:53:36,457 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 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) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2021-11-13 18:53:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:53:36,503 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions.
[2021-11-13 18:53:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:53:36,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7
[2021-11-13 18:53:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:53:36,517 INFO L225 Difference]: With dead ends: 21
[2021-11-13 18:53:36,518 INFO L226 Difference]: Without dead ends: 9
[2021-11-13 18:53:36,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:53:36,527 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.36ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.98ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:53:36,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 19 Invalid, 11 Unknown, 0 Unchecked, 1.36ms Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 18.98ms Time]
[2021-11-13 18:53:36,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2021-11-13 18:53:36,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2021-11-13 18:53:36,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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)
[2021-11-13 18:53:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2021-11-13 18:53:36,573 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7
[2021-11-13 18:53:36,574 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:53:36,574 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2021-11-13 18:53:36,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2021-11-13 18:53:36,575 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2021-11-13 18:53:36,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-11-13 18:53:36,576 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:53:36,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:53:36,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:53:36,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2021-11-13 18:53:36,799 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:53:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:53:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash 179533835, now seen corresponding path program 1 times
[2021-11-13 18:53:36,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:53:36,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964683283]
[2021-11-13 18:53:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:53:36,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:53:36,846 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:53:36,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441158940]
[2021-11-13 18:53:36,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:53:36,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:53:36,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:53:36,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:53:36,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-13 18:53:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:53:36,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core
[2021-11-13 18:53:36,947 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:53:37,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:53:37,303 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:53:37,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:53:37,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:53:37,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964683283]
[2021-11-13 18:53:37,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:53:37,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441158940]
[2021-11-13 18:53:37,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441158940] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:53:37,564 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:53:37,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2021-11-13 18:53:37,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203714839]
[2021-11-13 18:53:37,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:53:37,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-11-13 18:53:37,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:53:37,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-11-13 18:53:37,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2021-11-13 18:53:37,570 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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)
[2021-11-13 18:53:37,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:53:37,639 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions.
[2021-11-13 18:53:37,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 18:53:37,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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
[2021-11-13 18:53:37,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:53:37,642 INFO L225 Difference]: With dead ends: 13
[2021-11-13 18:53:37,643 INFO L226 Difference]: Without dead ends: 10
[2021-11-13 18:53:37,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:53:37,648 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.58ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.70ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:53:37,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 25 Unknown, 0 Unchecked, 2.58ms Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 38.70ms Time]
[2021-11-13 18:53:37,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2021-11-13 18:53:37,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2021-11-13 18:53:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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)
[2021-11-13 18:53:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2021-11-13 18:53:37,660 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8
[2021-11-13 18:53:37,661 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:53:37,661 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions.
[2021-11-13 18:53:37,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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)
[2021-11-13 18:53:37,662 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2021-11-13 18:53:37,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 18:53:37,663 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:53:37,663 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:53:37,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2021-11-13 18:53:37,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:53:37,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:53:37,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:53:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1270519115, now seen corresponding path program 2 times
[2021-11-13 18:53:37,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:53:37,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376570018]
[2021-11-13 18:53:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:53:37,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:53:37,910 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-11-13 18:53:37,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075398736]
[2021-11-13 18:53:37,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 18:53:37,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:53:37,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:53:37,912 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:53:37,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-11-13 18:53:37,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-11-13 18:53:37,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:53:37,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 16 conjunts are in the unsatisfiable core
[2021-11-13 18:53:37,996 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:53:38,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:53:38,220 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:53:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-13 18:53:38,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:53:38,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376570018]
[2021-11-13 18:53:38,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-11-13 18:53:38,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075398736]
[2021-11-13 18:53:38,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075398736] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:53:38,639 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:53:38,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8
[2021-11-13 18:53:38,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691380048]
[2021-11-13 18:53:38,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:53:38,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-13 18:53:38,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:53:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-13 18:53:38,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:53:38,651 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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)
[2021-11-13 18:53:38,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:53:38,890 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions.
[2021-11-13 18:53:38,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:53:38,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 9
[2021-11-13 18:53:38,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:53:38,891 INFO L225 Difference]: With dead ends: 11
[2021-11-13 18:53:38,891 INFO L226 Difference]: Without dead ends: 0
[2021-11-13 18:53:38,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110
[2021-11-13 18:53:38,893 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 19.56ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:53:38,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 20 Unknown, 0 Unchecked, 2.49ms Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 3 Unchecked, 19.56ms Time]
[2021-11-13 18:53:38,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-11-13 18:53:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-11-13 18:53:38,894 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)
[2021-11-13 18:53:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-11-13 18:53:38,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9
[2021-11-13 18:53:38,895 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:53:38,895 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-11-13 18:53:38,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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)
[2021-11-13 18:53:38,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-11-13 18:53:38,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-11-13 18:53:38,898 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 18:53:38,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-11-13 18:53:39,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:53:39,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-11-13 18:53:39,300 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-11-13 18:53:39,301 INFO L858 garLoopResultBuilder]: For program point L25(lines 25 59) no Hoare annotation was computed.
[2021-11-13 18:53:39,301 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 60) no Hoare annotation was computed.
[2021-11-13 18:53:39,301 INFO L854 garLoopResultBuilder]: At program point L38(lines 30 59) the Hoare annotation is: (and (or (<= |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__n~0#1|) (= (+ |ULTIMATE.start_main_~main__n~0#1| (* |ULTIMATE.start_main_~main__n~0#1| |ULTIMATE.start_main_~main__n~0#1|)) (* 2 |ULTIMATE.start_main_~main__sum~0#1|))) (forall ((|ULTIMATE.start_main_~main__n~0#1| Int)) (or (= (+ (* 2 |ULTIMATE.start_main_~main__i~0#1|) (* 2 |ULTIMATE.start_main_~main__sum~0#1|)) (+ |ULTIMATE.start_main_~main__n~0#1| (* |ULTIMATE.start_main_~main__n~0#1| |ULTIMATE.start_main_~main__n~0#1|))) (< |ULTIMATE.start_main_~main__n~0#1| |ULTIMATE.start_main_~main__i~0#1|) (<= (+ |ULTIMATE.start_main_~main__i~0#1| 1) |ULTIMATE.start_main_~main__n~0#1|))) (<= 1 |ULTIMATE.start_main_~main__n~0#1|))
[2021-11-13 18:53:39,302 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-11-13 18:53:39,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-11-13 18:53:39,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-11-13 18:53:39,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed.
[2021-11-13 18:53:39,302 INFO L861 garLoopResultBuilder]: At program point L55(lines 13 61) the Hoare annotation is: true
[2021-11-13 18:53:39,303 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed.
[2021-11-13 18:53:39,303 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 56) no Hoare annotation was computed.
[2021-11-13 18:53:39,307 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1]
[2021-11-13 18:53:39,309 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 18:53:39,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,331 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,331 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,331 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,332 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,332 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:53:39 BoogieIcfgContainer
[2021-11-13 18:53:39,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 18:53:39,335 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 18:53:39,335 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 18:53:39,335 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 18:53:39,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:53:35" (3/4) ...
[2021-11-13 18:53:39,342 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-11-13 18:53:39,356 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2021-11-13 18:53:39,357 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2021-11-13 18:53:39,358 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-11-13 18:53:39,358 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-11-13 18:53:39,419 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/witness.graphml
[2021-11-13 18:53:39,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 18:53:39,420 INFO L158 Benchmark]: Toolchain (without parser) took 4655.99ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 58.9MB in the beginning and 61.9MB in the end (delta: -3.0MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB.
[2021-11-13 18:53:39,425 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 75.4MB in the beginning and 75.3MB in the end (delta: 127.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:53:39,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.66ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 70.7MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 18:53:39,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.74ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:53:39,427 INFO L158 Benchmark]: Boogie Preprocessor took 53.33ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 68.3MB in the end (delta: 941.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:53:39,428 INFO L158 Benchmark]: RCFGBuilder took 451.52ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 59.1MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-11-13 18:53:39,429 INFO L158 Benchmark]: TraceAbstraction took 3574.37ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 58.8MB in the beginning and 64.6MB in the end (delta: -5.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB.
[2021-11-13 18:53:39,430 INFO L158 Benchmark]: Witness Printer took 84.63ms. Allocated memory is still 115.3MB. Free memory was 64.6MB in the beginning and 61.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:53:39,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 75.4MB in the beginning and 75.3MB in the end (delta: 127.1kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 394.66ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 70.7MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 60.74ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 53.33ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 68.3MB in the end (delta: 941.5kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 451.52ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 59.1MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 3574.37ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 58.8MB in the beginning and 64.6MB in the end (delta: -5.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB.
* Witness Printer took 84.63ms. Allocated memory is still 115.3MB. Free memory was 64.6MB in the beginning and 61.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor:
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
* 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: 49]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 77.25ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 60.73ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 3 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 20 mSDtfsCounter, 49 mSolverCounterSat, 6.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 41 HoareAnnotationTreeSize, 2 FomulaSimplifications, 3 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 74 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 2 QuantifiedInterpolants, 193 SizeOfPredicates, 12 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/8 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: 30]: Loop Invariant
[2021-11-13 18:53:39,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,453 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,453 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,454 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,454 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,454 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,454 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
[2021-11-13 18:53:39,455 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED]
Derived loop invariant: ((main__i <= main__n || main__n + main__n * main__n == 2 * main__sum) && (forall ULTIMATE.start_main_~main__n~0#1 : int :: (2 * main__i + 2 * main__sum == ULTIMATE.start_main_~main__n~0#1 + ULTIMATE.start_main_~main__n~0#1 * ULTIMATE.start_main_~main__n~0#1 || ULTIMATE.start_main_~main__n~0#1 < main__i) || main__i + 1 <= ULTIMATE.start_main_~main__n~0#1)) && 1 <= main__n
- InvariantResult [Line: 13]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2021-11-13 18:53:39,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbafeee8-b3c5-4d19-a58c-02f847a4c73c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE