./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b
--- 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 20:59:38,318 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:59:38,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:59:38,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:59:38,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:59:38,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:59:38,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:59:38,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:59:38,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:59:38,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:59:38,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:59:38,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:59:38,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:59:38,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:59:38,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:59:38,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:59:38,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:59:38,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:59:38,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:59:38,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:59:38,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:59:38,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:59:38,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:59:38,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:59:38,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:59:38,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:59:38,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:59:38,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:59:38,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:59:38,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:59:38,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:59:38,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:59:38,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:59:38,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:59:38,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:59:38,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:59:38,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:59:38,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:59:38,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:59:38,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:59:38,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:59:38,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 20:59:38,414 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:59:38,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:59:38,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:59:38,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:59:38,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:59:38,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:59:38,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:59:38,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:59:38,426 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:59:38,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:59:38,428 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:59:38,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:59:38,428 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:59:38,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:59:38,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:59:38,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:59:38,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:59:38,435 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:59:38,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:59:38,435 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:59:38,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:59:38,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:59:38,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:59:38,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:59:38,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:59:38,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:59:38,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:59:38,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:59:38,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:59:38,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:59:38,439 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:59:38,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:59:38,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:59:38,440 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b
[2022-11-02 20:59:38,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:59:38,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:59:38,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:59:38,749 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:59:38,750 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:59:38,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c
[2022-11-02 20:59:38,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data/085595192/ee51a2d57853433c8c166e3070f1123d/FLAGe62a68400
[2022-11-02 20:59:39,328 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:59:39,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c
[2022-11-02 20:59:39,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data/085595192/ee51a2d57853433c8c166e3070f1123d/FLAGe62a68400
[2022-11-02 20:59:39,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data/085595192/ee51a2d57853433c8c166e3070f1123d
[2022-11-02 20:59:39,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:59:39,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:59:39,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:59:39,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:59:39,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:59:39,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:39" (1/1) ...
[2022-11-02 20:59:39,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161bf729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:39, skipping insertion in model container
[2022-11-02 20:59:39,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:39" (1/1) ...
[2022-11-02 20:59:39,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:59:39,865 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:59:40,054 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012]
[2022-11-02 20:59:40,059 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381]
[2022-11-02 20:59:40,094 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:59:40,102 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:59:40,119 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012]
[2022-11-02 20:59:40,120 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381]
[2022-11-02 20:59:40,155 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:59:40,169 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:59:40,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40 WrapperNode
[2022-11-02 20:59:40,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:59:40,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:59:40,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:59:40,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:59:40,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,225 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133
[2022-11-02 20:59:40,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:59:40,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:59:40,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:59:40,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:59:40,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,253 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:59:40,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:59:40,258 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:59:40,259 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:59:40,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (1/1) ...
[2022-11-02 20:59:40,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:59:40,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:59:40,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:59:40,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:59:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:59:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2022-11-02 20:59:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2022-11-02 20:59:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:59:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:59:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:59:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 20:59:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 20:59:40,483 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:59:40,486 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:59:40,844 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:59:40,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:59:40,855 INFO L300 CfgBuilder]: Removed 2 assume(true) statements.
[2022-11-02 20:59:40,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:40 BoogieIcfgContainer
[2022-11-02 20:59:40,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:59:40,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:59:40,862 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:59:40,866 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:59:40,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:59:39" (1/3) ...
[2022-11-02 20:59:40,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e325b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:59:40, skipping insertion in model container
[2022-11-02 20:59:40,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:40" (2/3) ...
[2022-11-02 20:59:40,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e325b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:59:40, skipping insertion in model container
[2022-11-02 20:59:40,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:40" (3/3) ...
[2022-11-02 20:59:40,869 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c
[2022-11-02 20:59:40,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:59:40,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-02 20:59:40,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:59:40,947 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;@126d4502, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:59:40,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-02 20:59:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-11-02 20:59:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:59:40,958 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:59:40,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:59:40,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:59:40,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:59:40,964 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times
[2022-11-02 20:59:40,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:59:40,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891056349]
[2022-11-02 20:59:40,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:59:40,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:59:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:59:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:59:41,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:59:41,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891056349]
[2022-11-02 20:59:41,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891056349] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:59:41,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:59:41,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:59:41,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592107825]
[2022-11-02 20:59:41,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:59:41,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:59:41,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:59:41,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:59:41,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:59:41,138 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2022-11-02 20:59:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:59:41,166 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions.
[2022-11-02 20:59:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:59:41,168 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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
[2022-11-02 20:59:41,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:59:41,176 INFO L225 Difference]: With dead ends: 117
[2022-11-02 20:59:41,176 INFO L226 Difference]: Without dead ends: 52
[2022-11-02 20:59:41,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 20:59:41,183 INFO L413 NwaCegarLoop]: 82 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, 82 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 20:59:41,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:59:41,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-02 20:59:41,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2022-11-02 20:59:41,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-11-02 20:59:41,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions.
[2022-11-02 20:59:41,242 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7
[2022-11-02 20:59:41,243 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:59:41,243 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions.
[2022-11-02 20:59:41,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2022-11-02 20:59:41,244 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions.
[2022-11-02 20:59:41,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:59:41,244 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:59:41,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:59:41,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:59:41,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:59:41,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:59:41,247 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times
[2022-11-02 20:59:41,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:59:41,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632710918]
[2022-11-02 20:59:41,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:59:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:59:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:59:41,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:59:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:59:41,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:59:41,345 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:59:41,347 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2022-11-02 20:59:41,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2022-11-02 20:59:41,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 20:59:41,353 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-02 20:59:41,356 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:59:41,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:59:41 BoogieIcfgContainer
[2022-11-02 20:59:41,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:59:41,391 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:59:41,391 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:59:41,392 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:59:41,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:40" (3/4) ...
[2022-11-02 20:59:41,396 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-11-02 20:59:41,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:59:41,398 INFO L158 Benchmark]: Toolchain (without parser) took 1568.62ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 66.5MB in the beginning and 57.0MB in the end (delta: 9.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB.
[2022-11-02 20:59:41,399 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 90.2MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:59:41,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.15ms. Allocated memory is still 90.2MB. Free memory was 66.2MB in the beginning and 62.0MB in the end (delta: 4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:59:41,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.65ms. Allocated memory is still 90.2MB. Free memory was 61.9MB in the beginning and 59.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:59:41,407 INFO L158 Benchmark]: Boogie Preprocessor took 31.22ms. Allocated memory is still 90.2MB. Free memory was 59.9MB in the beginning and 58.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:59:41,408 INFO L158 Benchmark]: RCFGBuilder took 599.54ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.2MB in the beginning and 82.4MB in the end (delta: -24.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB.
[2022-11-02 20:59:41,409 INFO L158 Benchmark]: TraceAbstraction took 525.48ms. Allocated memory is still 109.1MB. Free memory was 81.7MB in the beginning and 57.3MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2022-11-02 20:59:41,409 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 109.1MB. Free memory was 57.3MB in the beginning and 57.0MB in the end (delta: 297.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:59:41,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 90.2MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 341.15ms. Allocated memory is still 90.2MB. Free memory was 66.2MB in the beginning and 62.0MB in the end (delta: 4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 54.65ms. Allocated memory is still 90.2MB. Free memory was 61.9MB in the beginning and 59.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 31.22ms. Allocated memory is still 90.2MB. Free memory was 59.9MB in the beginning and 58.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 599.54ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.2MB in the beginning and 82.4MB in the end (delta: -24.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 525.48ms. Allocated memory is still 109.1MB. Free memory was 81.7MB in the beginning and 57.3MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
* Witness Printer took 5.04ms. Allocated memory is still 109.1MB. Free memory was 57.3MB in the beginning and 57.0MB in the end (delta: 297.9kB). There was no memory consumed. 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
- UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45.
Possible FailurePath:
[L322] COND TRUE __VERIFIER_nondet_int()
[L323] CALL main1()
[L39] float IN = __VERIFIER_nondet_float();
[L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L34] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1]
[L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L42] float x = IN;
[L44-L45] float result =
1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x;
VAL [IN=53, x=53]
[L47] COND TRUE !(result >= 0.0f && result < 1.39843f)
VAL [IN=53, x=53]
[L48] reach_error()
VAL [IN=53, x=53]
- UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-11-02 20:59:41,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b
--- 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 20:59:43,841 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:59:43,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:59:43,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:59:43,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:59:43,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:59:43,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:59:43,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:59:43,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:59:43,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:59:43,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:59:43,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:59:43,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:59:43,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:59:43,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:59:43,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:59:43,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:59:43,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:59:43,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:59:43,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:59:43,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:59:43,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:59:43,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:59:43,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:59:43,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:59:43,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:59:43,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:59:43,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:59:43,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:59:43,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:59:43,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:59:43,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:59:43,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:59:43,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:59:43,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:59:43,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:59:43,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:59:43,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:59:43,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:59:43,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:59:43,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:59:43,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2022-11-02 20:59:43,948 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:59:43,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:59:43,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:59:43,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:59:43,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:59:43,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:59:43,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:59:43,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:59:43,951 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:59:43,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:59:43,952 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:59:43,952 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:59:43,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:59:43,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:59:43,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:59:43,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:59:43,953 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:59:43,954 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-02 20:59:43,954 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-02 20:59:43,954 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:59:43,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:59:43,955 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:59:43,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:59:43,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:59:43,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:59:43,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:59:43,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:59:43,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:59:43,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:59:43,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:59:43,957 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-02 20:59:43,958 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-02 20:59:43,958 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:59:43,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:59:43,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:59:43,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-02 20:59:43,959 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b
[2022-11-02 20:59:44,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:59:44,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:59:44,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:59:44,343 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:59:44,344 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:59:44,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c
[2022-11-02 20:59:44,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data/31cfc8c53/e92831f38b1a4c44a23b256f951f1289/FLAG25be20a60
[2022-11-02 20:59:44,982 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:59:44,982 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c
[2022-11-02 20:59:44,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data/31cfc8c53/e92831f38b1a4c44a23b256f951f1289/FLAG25be20a60
[2022-11-02 20:59:45,322 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/data/31cfc8c53/e92831f38b1a4c44a23b256f951f1289
[2022-11-02 20:59:45,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:59:45,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:59:45,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:59:45,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:59:45,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:59:45,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cf9dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45, skipping insertion in model container
[2022-11-02 20:59:45,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:59:45,407 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:59:45,565 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012]
[2022-11-02 20:59:45,570 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381]
[2022-11-02 20:59:45,610 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:59:45,647 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:59:45,668 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012]
[2022-11-02 20:59:45,680 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_ae77f42b-4e9b-46a5-a623-e7ddf685874f/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381]
[2022-11-02 20:59:45,715 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:59:45,730 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:59:45,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45 WrapperNode
[2022-11-02 20:59:45,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:59:45,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:59:45,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:59:45,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:59:45,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,770 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129
[2022-11-02 20:59:45,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:59:45,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:59:45,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:59:45,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:59:45,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,821 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:59:45,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:59:45,827 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:59:45,827 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:59:45,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (1/1) ...
[2022-11-02 20:59:45,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:59:45,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:59:45,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:59:45,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:59:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:59:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-02 20:59:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2022-11-02 20:59:45,927 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2022-11-02 20:59:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:59:45,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:59:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 20:59:45,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 20:59:46,017 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:59:46,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:59:48,522 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:59:48,529 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:59:48,530 INFO L300 CfgBuilder]: Removed 2 assume(true) statements.
[2022-11-02 20:59:48,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:48 BoogieIcfgContainer
[2022-11-02 20:59:48,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:59:48,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:59:48,535 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:59:48,538 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:59:48,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:59:45" (1/3) ...
[2022-11-02 20:59:48,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c935f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:59:48, skipping insertion in model container
[2022-11-02 20:59:48,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:45" (2/3) ...
[2022-11-02 20:59:48,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c935f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:59:48, skipping insertion in model container
[2022-11-02 20:59:48,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:48" (3/3) ...
[2022-11-02 20:59:48,542 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c
[2022-11-02 20:59:48,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:59:48,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-02 20:59:48,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:59:48,621 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;@421571ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:59:48,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-02 20:59:48,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-11-02 20:59:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:59:48,633 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:59:48,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:59:48,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:59:48,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:59:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times
[2022-11-02 20:59:48,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:59:48,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697642996]
[2022-11-02 20:59:48,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:59:48,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:59:48,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:59:48,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:59:48,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-02 20:59:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:59:49,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-02 20:59:49,241 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:59:49,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:59:49,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:59:49,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:59:49,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697642996]
[2022-11-02 20:59:49,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697642996] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:59:49,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:59:49,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:59:49,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954490973]
[2022-11-02 20:59:49,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:59:49,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:59:49,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:59:49,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:59:49,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:59:49,301 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2022-11-02 20:59:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:59:49,331 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions.
[2022-11-02 20:59:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:59:49,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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
[2022-11-02 20:59:49,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:59:49,341 INFO L225 Difference]: With dead ends: 117
[2022-11-02 20:59:49,341 INFO L226 Difference]: Without dead ends: 52
[2022-11-02 20:59:49,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 20:59:49,348 INFO L413 NwaCegarLoop]: 82 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, 82 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 20:59:49,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:59:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-02 20:59:49,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2022-11-02 20:59:49,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-11-02 20:59:49,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions.
[2022-11-02 20:59:49,388 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7
[2022-11-02 20:59:49,388 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:59:49,388 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions.
[2022-11-02 20:59:49,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2022-11-02 20:59:49,389 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions.
[2022-11-02 20:59:49,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:59:49,389 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:59:49,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:59:49,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:59:49,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:59:49,603 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:59:49,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:59:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times
[2022-11-02 20:59:49,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:59:49,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002421169]
[2022-11-02 20:59:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:59:49,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:59:49,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:59:49,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:59:49,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae77f42b-4e9b-46a5-a623-e7ddf685874f/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process