./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc --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 3d5962362825282ae42e15c2becb997ecc48fe70f2dab3f327a660cebbeb623f
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 21:03:49,161 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 21:03:49,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 21:03:49,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 21:03:49,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 21:03:49,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 21:03:49,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 21:03:49,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 21:03:49,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 21:03:49,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 21:03:49,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 21:03:49,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 21:03:49,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 21:03:49,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 21:03:49,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 21:03:49,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 21:03:49,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 21:03:49,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 21:03:49,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 21:03:49,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 21:03:49,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 21:03:49,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 21:03:49,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 21:03:49,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 21:03:49,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 21:03:49,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 21:03:49,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 21:03:49,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 21:03:49,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 21:03:49,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 21:03:49,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 21:03:49,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 21:03:49,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 21:03:49,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 21:03:49,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 21:03:49,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 21:03:49,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 21:03:49,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 21:03:49,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 21:03:49,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 21:03:49,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 21:03:49,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 21:03:49,338 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 21:03:49,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 21:03:49,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 21:03:49,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 21:03:49,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 21:03:49,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 21:03:49,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 21:03:49,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 21:03:49,342 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 21:03:49,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 21:03:49,343 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 21:03:49,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 21:03:49,344 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 21:03:49,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 21:03:49,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 21:03:49,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 21:03:49,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 21:03:49,345 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 21:03:49,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 21:03:49,346 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 21:03:49,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 21:03:49,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 21:03:49,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 21:03:49,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 21:03:49,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:03:49,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 21:03:49,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 21:03:49,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 21:03:49,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 21:03:49,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 21:03:49,348 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 21:03:49,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 21:03:49,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 21:03:49,349 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_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d5962362825282ae42e15c2becb997ecc48fe70f2dab3f327a660cebbeb623f
[2022-11-02 21:03:49,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 21:03:49,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 21:03:49,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 21:03:49,681 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 21:03:49,683 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 21:03:49,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c
[2022-11-02 21:03:49,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/data/65233d002/7b3e337eb69046e4b55ce99cfa669344/FLAG727e31143
[2022-11-02 21:03:50,248 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 21:03:50,249 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c
[2022-11-02 21:03:50,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/data/65233d002/7b3e337eb69046e4b55ce99cfa669344/FLAG727e31143
[2022-11-02 21:03:50,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/data/65233d002/7b3e337eb69046e4b55ce99cfa669344
[2022-11-02 21:03:50,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 21:03:50,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 21:03:50,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 21:03:50,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 21:03:50,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 21:03:50,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6cdf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50, skipping insertion in model container
[2022-11-02 21:03:50,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 21:03:50,660 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 21:03:50,828 WARN L230 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_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c[524,537]
[2022-11-02 21:03:50,842 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:03:50,850 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 21:03:50,859 WARN L230 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_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c[524,537]
[2022-11-02 21:03:50,864 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:03:50,876 INFO L208 MainTranslator]: Completed translation
[2022-11-02 21:03:50,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50 WrapperNode
[2022-11-02 21:03:50,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 21:03:50,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 21:03:50,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 21:03:50,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 21:03:50,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,914 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43
[2022-11-02 21:03:50,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 21:03:50,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 21:03:50,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 21:03:50,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 21:03:50,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,957 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 21:03:50,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 21:03:50,962 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 21:03:50,962 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 21:03:50,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (1/1) ...
[2022-11-02 21:03:50,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:03:50,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:03:50,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 21:03:51,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 21:03:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 21:03:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-11-02 21:03:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-11-02 21:03:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 21:03:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 21:03:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 21:03:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 21:03:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 21:03:51,095 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 21:03:51,097 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 21:03:51,317 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 21:03:51,323 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 21:03:51,323 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 21:03:51,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:51 BoogieIcfgContainer
[2022-11-02 21:03:51,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 21:03:51,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 21:03:51,327 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 21:03:51,333 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 21:03:51,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:03:50" (1/3) ...
[2022-11-02 21:03:51,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608ce7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:03:51, skipping insertion in model container
[2022-11-02 21:03:51,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:50" (2/3) ...
[2022-11-02 21:03:51,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608ce7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:03:51, skipping insertion in model container
[2022-11-02 21:03:51,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:51" (3/3) ...
[2022-11-02 21:03:51,336 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound1.c
[2022-11-02 21:03:51,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 21:03:51,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 21:03:51,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 21:03:51,453 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4fff6239, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 21:03:51,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 21:03:51,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-02 21:03:51,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2022-11-02 21:03:51,467 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:51,468 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:51,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:51,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:51,477 INFO L85 PathProgramCache]: Analyzing trace with hash 970763787, now seen corresponding path program 1 times
[2022-11-02 21:03:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:51,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997883974]
[2022-11-02 21:03:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:51,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:51,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:51,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997883974]
[2022-11-02 21:03:51,648 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2022-11-02 21:03:51,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294829131]
[2022-11-02 21:03:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:51,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:51,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:03:51,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:03:51,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 21:03:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:51,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-02 21:03:51,819 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:03:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-11-02 21:03:51,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 21:03:51,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294829131] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:03:51,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:03:51,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:03:51,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934819310]
[2022-11-02 21:03:51,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:03:51,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 21:03:51,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:51,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 21:03:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 21:03:51,950 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2022-11-02 21:03:51,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:51,989 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions.
[2022-11-02 21:03:51,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 21:03:51,993 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29
[2022-11-02 21:03:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:52,001 INFO L225 Difference]: With dead ends: 51
[2022-11-02 21:03:52,001 INFO L226 Difference]: Without dead ends: 23
[2022-11-02 21:03:52,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 21:03:52,009 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:52,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 21:03:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2022-11-02 21:03:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2022-11-02 21:03:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-11-02 21:03:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions.
[2022-11-02 21:03:52,068 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 29
[2022-11-02 21:03:52,069 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:52,069 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions.
[2022-11-02 21:03:52,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2022-11-02 21:03:52,070 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions.
[2022-11-02 21:03:52,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2022-11-02 21:03:52,073 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:52,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:52,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-02 21:03:52,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2022-11-02 21:03:52,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:52,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:52,302 INFO L85 PathProgramCache]: Analyzing trace with hash -908690225, now seen corresponding path program 1 times
[2022-11-02 21:03:52,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:52,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369572060]
[2022-11-02 21:03:52,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:52,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:52,340 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 21:03:52,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1789658298]
[2022-11-02 21:03:52,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:52,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:52,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:03:52,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:03:52,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 21:03:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:52,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 24 conjunts are in the unsatisfiable core
[2022-11-02 21:03:52,461 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:03:53,008 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2022-11-02 21:03:53,009 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 21:03:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-11-02 21:03:53,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:53,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369572060]
[2022-11-02 21:03:53,207 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 21:03:53,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789658298]
[2022-11-02 21:03:53,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789658298] provided 1 perfect and 1 imperfect interpolant sequences
[2022-11-02 21:03:53,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 21:03:53,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11
[2022-11-02 21:03:53,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008633860]
[2022-11-02 21:03:53,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:03:53,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 21:03:53,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:53,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 21:03:53,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2022-11-02 21:03:53,222 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2022-11-02 21:03:53,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:53,379 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions.
[2022-11-02 21:03:53,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 21:03:53,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29
[2022-11-02 21:03:53,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:53,382 INFO L225 Difference]: With dead ends: 29
[2022-11-02 21:03:53,383 INFO L226 Difference]: Without dead ends: 25
[2022-11-02 21:03:53,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2022-11-02 21:03:53,384 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:53,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 72 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 21:03:53,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2022-11-02 21:03:53,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2022-11-02 21:03:53,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-11-02 21:03:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions.
[2022-11-02 21:03:53,396 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 29
[2022-11-02 21:03:53,398 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:53,398 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions.
[2022-11-02 21:03:53,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2022-11-02 21:03:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions.
[2022-11-02 21:03:53,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2022-11-02 21:03:53,400 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:53,400 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:53,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 21:03:53,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:53,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:53,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:53,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1577016431, now seen corresponding path program 1 times
[2022-11-02 21:03:53,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:53,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458410230]
[2022-11-02 21:03:53,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:53,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:53,628 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 21:03:53,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32295073]
[2022-11-02 21:03:53,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:53,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:53,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:03:53,631 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:03:53,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-02 21:03:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:53,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-11-02 21:03:53,695 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:03:53,773 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-11-02 21:03:53,774 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 21:03:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-11-02 21:03:53,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:53,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458410230]
[2022-11-02 21:03:53,908 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 21:03:53,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32295073]
[2022-11-02 21:03:53,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32295073] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 21:03:53,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 21:03:53,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10
[2022-11-02 21:03:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495785628]
[2022-11-02 21:03:53,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 21:03:53,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-11-02 21:03:53,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:53,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-11-02 21:03:53,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2022-11-02 21:03:53,911 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 21:03:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:54,151 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions.
[2022-11-02 21:03:54,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-02 21:03:54,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 35
[2022-11-02 21:03:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:54,153 INFO L225 Difference]: With dead ends: 25
[2022-11-02 21:03:54,154 INFO L226 Difference]: Without dead ends: 0
[2022-11-02 21:03:54,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132
[2022-11-02 21:03:54,155 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 14 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:54,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 106 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-11-02 21:03:54,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 21:03:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 21:03:54,156 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)
[2022-11-02 21:03:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 21:03:54,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35
[2022-11-02 21:03:54,156 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:54,157 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 21:03:54,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 21:03:54,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 21:03:54,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 21:03:54,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 21:03:54,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-11-02 21:03:54,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:54,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 21:03:54,396 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 46) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~A~0#1| 4)) (.cse1 (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|)) (.cse2 (* 2 |ULTIMATE.start_main_~u~0#1|)) (.cse3 (+ (* 2 |ULTIMATE.start_main_~v~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|)))) (and (= (+ .cse0 (* |ULTIMATE.start_main_~r~0#1| 4) .cse1 .cse2) .cse3) (= (+ .cse0 .cse1 .cse2) .cse3)))
[2022-11-02 21:03:54,397 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 21:03:54,397 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed.
[2022-11-02 21:03:54,397 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true
[2022-11-02 21:03:54,397 INFO L902 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true
[2022-11-02 21:03:54,397 INFO L902 garLoopResultBuilder]: At program point L25-1(line 25) the Hoare annotation is: true
[2022-11-02 21:03:54,398 INFO L902 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: true
[2022-11-02 21:03:54,398 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed.
[2022-11-02 21:03:54,398 INFO L902 garLoopResultBuilder]: At program point L50(lines 19 51) the Hoare annotation is: true
[2022-11-02 21:03:54,398 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~A~0#1| 4) (* |ULTIMATE.start_main_~r~0#1| 4) (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|) (* 2 |ULTIMATE.start_main_~u~0#1|)) (+ (* 2 |ULTIMATE.start_main_~v~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|)))
[2022-11-02 21:03:54,398 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 46) no Hoare annotation was computed.
[2022-11-02 21:03:54,399 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 21:03:54,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 21:03:54,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 21:03:54,399 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed.
[2022-11-02 21:03:54,399 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 45) no Hoare annotation was computed.
[2022-11-02 21:03:54,400 INFO L895 garLoopResultBuilder]: At program point L39-2(lines 35 46) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~A~0#1| 4) (* |ULTIMATE.start_main_~r~0#1| 4) (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|) (* 2 |ULTIMATE.start_main_~u~0#1|)) (+ (* 2 |ULTIMATE.start_main_~v~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|)))
[2022-11-02 21:03:54,400 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true
[2022-11-02 21:03:54,400 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed.
[2022-11-02 21:03:54,400 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed.
[2022-11-02 21:03:54,400 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed.
[2022-11-02 21:03:54,401 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 11 17) the Hoare annotation is: true
[2022-11-02 21:03:54,401 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed.
[2022-11-02 21:03:54,401 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed.
[2022-11-02 21:03:54,401 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed.
[2022-11-02 21:03:54,401 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed.
[2022-11-02 21:03:54,402 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed.
[2022-11-02 21:03:54,405 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-11-02 21:03:54,407 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 21:03:54,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:03:54 BoogieIcfgContainer
[2022-11-02 21:03:54,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 21:03:54,421 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 21:03:54,421 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 21:03:54,421 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 21:03:54,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:51" (3/4) ...
[2022-11-02 21:03:54,424 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-02 21:03:54,431 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2022-11-02 21:03:54,431 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2022-11-02 21:03:54,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2022-11-02 21:03:54,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2022-11-02 21:03:54,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-02 21:03:54,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 21:03:54,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 21:03:54,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 21:03:54,469 INFO L158 Benchmark]: Toolchain (without parser) took 3837.60ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 46.7MB in the beginning and 34.1MB in the end (delta: 12.6MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB.
[2022-11-02 21:03:54,469 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:03:54,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.67ms. Allocated memory is still 86.0MB. Free memory was 46.5MB in the beginning and 62.6MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 21:03:54,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.07ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 60.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:03:54,470 INFO L158 Benchmark]: Boogie Preprocessor took 45.17ms. Allocated memory is still 86.0MB. Free memory was 60.8MB in the beginning and 59.9MB in the end (delta: 898.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:03:54,471 INFO L158 Benchmark]: RCFGBuilder took 363.62ms. Allocated memory is still 86.0MB. Free memory was 59.6MB in the beginning and 48.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 21:03:54,471 INFO L158 Benchmark]: TraceAbstraction took 3093.39ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 48.2MB in the beginning and 36.8MB in the end (delta: 11.4MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB.
[2022-11-02 21:03:54,472 INFO L158 Benchmark]: Witness Printer took 47.40ms. Allocated memory is still 107.0MB. Free memory was 36.8MB in the beginning and 34.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:03:54,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 243.67ms. Allocated memory is still 86.0MB. Free memory was 46.5MB in the beginning and 62.6MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 38.07ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 60.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 45.17ms. Allocated memory is still 86.0MB. Free memory was 60.8MB in the beginning and 59.9MB in the end (delta: 898.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 363.62ms. Allocated memory is still 86.0MB. Free memory was 59.6MB in the beginning and 48.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 3093.39ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 48.2MB in the beginning and 36.8MB in the end (delta: 11.4MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB.
* Witness Printer took 47.40ms. Allocated memory is still 107.0MB. Free memory was 36.8MB in the beginning and 34.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 14]: 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 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 72 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 155 GetRequests, 131 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 10 LocationsWithAnnotation, 19 PreInvPairs, 26 NumberOfFragments, 89 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 483 SizeOfPredicates, 12 NumberOfNonLiveVariables, 260 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 113/124 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: 35]: Loop Invariant
Derived loop invariant: A * 4 + r * 4 + v * v + 2 * u == 2 * v + u * u
- InvariantResult [Line: 19]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2022-11-02 21:03:54,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9763a26e-13f4-4ecd-87d2-d2c77984a8a1/bin/uautomizer-Dbtcem3rbc/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